bluuebunny/crossref_metadata_2025 huggingface dataset:
Tikhonov regularization in standardized and general form for multivariate calibration with application towards removing unwanted spectral artifacts
Authors: Stout Forrest , Kalivas John H.
Published: November 2006

Tikhonov regularization (TR) is an approach to form a multivariate calibration model for y = Xb. It includes a regulation operator matrix L that is usually set to the identity matrix I and in this situation, TR is said to operate in standard form and is the same as ridge regression (RR). Alternatively, TR can function in general form with L ≠ I where L is used to remove unwanted spectral artifacts. To simplify the computations for TR in general form, a standardization process can be used on X and y to transform the problem into TR in standard form and a RR algorithm can now be used. The calculated regression vector in standardized space must be back‐transformed to the general form which can now be applied to spectra that have not been standardized. The calibration model building methods of principal component regression (PCR), partial least squares (PLS) and others can also be implemented with the standardized X and y. Regardless of the calibration method, armed with y, X and L, a regression vector is sought that can correct for irrelevant spectral variation in predicting y. In this study, L is set to various derivative operators to obtain smoothed TR, PCR and PLS regression vectors in order to generate models robust to noise and/or temperature effects. Results of this smoothing process are examined for spectral data without excessive noise or other artifacts, spectral data with additional noise added and spectral data exhibiting temperature‐induced peak shifts. When the noise level is small, derivative operator smoothing was found to slightly degrade the root mean square error of validation (RMSEV) as well as the prediction variance indicator represented by the regression vector 2‐norm $\left\| {{\rm \hat b}} \right\|_2$ thereby deteriorating the model harmony (bias/variance tradeoff). The effective rank (ER) (parsimony) was found to decrease with smoothing and in doing so; a harmony/parsimony tradeoff is formed. For the temperature‐affected data and some of the noisy data, derivative operator smoothing decreases the RMSEV, but at a cost of greater values for $\left\| {{\rm \hat b}} \right\|_2$. The ER was found to increase and hence, the parsimony degraded. A simulated data set from a previous study that used TR in general form was reexamined. In the present study, the standardization process is used with L set to the spectral noise structure to eliminate undesirable spectral regions (wavelength selection) and TR, PCR and PLS are evaluated. There was a significant decrease in bias at a sacrifice to variance with wavelength selection and the parsimony essentially remains the same. This paper includes discussion on the utility of using TR to remove other undesired spectral patterns resulting from chemical, environmental and/or instrumental influences. The discussion also incorporates using TR as a method for calibration transfer. Copyright © 2006 John Wiley & Sons, Ltd.
Bootstrap methods for confidence intervals of percentiles from dataset containing nondetected observations using lognormal distribution
Authors: Imaizumi Yoshitaka , Suzuki Noriyuki , Shiraishi Hiroaki
Published: November 2006

We evaluated 12 types of bootstrap methods for estimating the confidence intervals of percentiles predicted from a dataset containing nondetected (ND) results of Monte Carlo simulation. The bootstrap prediction process, which computes the confidence intervals, comprises three steps: resampling, calculating bootstrap parameters and computing confidence intervals. We selected several methods—parametric or nonparametric methods for resampling, lognormal or truncated lognormal for parent distribution, and ‘percentile’, ‘bootstrap‐t’ or ‘BCa’ methods for computing the confidence intervals. The reliabilities of these bootstrap methods were compared. In addition, we used environmental monitoring data, which were obtained in 2002 from various rivers in Japan for the verification of the bootstrap methods. The bootstrap confidence intervals for the five proposed methods were compared from the viewpoint of reliability. Based on the results computed by the ‘lognormal, parametric, bootstrap‐t’ method (LN‐P‐Bt)—the most reliable method—95% of the upper confidence limits of the 95th percentiles were from 1.7 to 2.1 times greater than the 95th percentiles directly predicted from the actual sample, and the logarithmic ranges for 90% of the bootstrap confidence intervals varied from 3.0 to 4.4. With regard to the maximum value among the five applied methods, the 95% upper confidence limits of the 95th percentiles were from 3.5 to 7.0 times greater than the 95th percentiles. The parent distribution cannot be assumed to randomly conform to a parametric distribution function particularly in the case of environmental monitoring data. For the conservative estimates, the confidence limits should be comprehensively evaluated from the values estimated by several methods that are established on the basis of different assumptions. Copyright © 2006 John Wiley & Sons, Ltd.
Application of PLS‐DA in multivariate image analysis
Authors: Chevallier Sylvie , Bertrand Dominique , Kohler Achim , Courcoux Philippe
Published: November 2006

A simple imaging system has been developed for acquiring multivariate images in order to characterise the heterogeneity of food materials. The objective of the present work is, first, to demonstrate the capability of this acquisition system to discriminate food products of different natures. Secondly, our goal is to apply Partial Least Squares regression on these multivariate images and to evaluate the interest of various strategies of classification. A data set containing 24 images (702 × 524) acquired at different wavelengths for four food products is analysed. After the establishment of the PLS2 models employed for predicting the indicator variables, four strategies of classification of observations are tested. The first classification is done by selecting the largest component of the indicator variables. The others are based on the measurement of distances to the barycentres of the qualitative groups. Distances calculated can be either Euclidian distances or Mahalonobis distances. Except the strategy based on the Euclidian distance on scores, the strategies are rather equivalent, with a slight advantage to the Euclidian distance on predicted indicators. Another possibility addressed by the use of linear discriminant analysis (LDA) on multivariate images is to represent the qualitative groups as artificial images. The largest confusion appears between both cereal products while others are well classified. Copyright © 2006 John Wiley & Sons, Ltd.
Multivariate accelerated shelf‐life testing: a novel approach for determining the shelf‐life of foods
Authors: Pedro André M. K. , Ferreira Márcia M. C.
Published: November 2006

In order to meet consumers' expectations for high‐quality products, food industries must conduct shelf‐life studies that many times include the assessment of several analytical and sensory properties. However, whenever a new product is to be launched onto the market, defining which are the most relevant properties to monitor, as well as their cut‐off criterion, is the subject of strong debate. Besides, for products with long estimated shelf‐lives, accelerated studies have to be conducted and a third parameter has to be estimated: the acceleration factor which defines the correlation between the different storage conditions. In this study we propose a new approach for determining the shelf‐life of industrialised food products, the Multivariate Accelerated Shelf‐Life Test (MASLT), in which a Principal Component Analysis (PCA) is performed and the scores of the time‐related components are taken for estimating the multivariate rate constants (km), the multivariate acceleration factor (αm) and the multivariate activation energy (Eam). The method was successfully applied to a single‐concentrated industrialised tomato product for which the actual shelf‐life was estimated to be 28 months. Pseudo‐zero‐order kinetics resulted in the multivariate parameters α35,25m = 2.7 and Eam = 150 kJ·mol−1. Copyright © 2006 John Wiley & Sons, Ltd.
Ab initio Study of Energetic Solids: Cupric Azide, Mercuric Azide, and Lead Azide
Authors: Zhu Weihua , Xiao Heming
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Meta‐Barium Borate, II‐BaB2O4, at 163 and 293 K.
Authors: Lu Shao‐Fang , Huang Zi‐Xiang , Huang Jin‐Ling
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Lithium Dioxobis[trioxoiodato(V)]vanadate, Li[VO2(IO3)2].
Authors: Chen Xue‐An , Zhang Li , Chang Xin‐An , Zang He‐Gui , Xiao Wei‐Qiang
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Structure and Ionic‐Transport Properties of Lithium‐Containing Garnets Li3Ln3Te2O12 (Ln: Y, Pr, Nd, Sm—Lu).
Authors: O'Callaghan Michael P. , Lynham Danny R. , Cussen Edmund J. , Chen George Z.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Osmium(VII) Fluorine Compounds
Authors: Shorafa Hashem , Seppelt Konrad
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
ζ‐Y2[Si2O7]: A New Structure Type with the Yttrialite Series.
Authors: Hartenbach Ingo , Meier Steffen F. , Schleid Thomas
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Crystal Structure, Band Structure, and Physical Properties of Ba8Cu6‐xGe40+x (0 ≤ x ≤ 0.7).
Authors: Johnsen Simon , Bentien Anders , Madsen Georg K. H. , Iversen Bo B. , Nygren Mats
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Chirality and Magnetism in a Novel Series of Isotypic Borophosphates: MII[BPO4(OH)2] (MII: Mn, Fe, Co).
Authors: Huang Ya‐Xi , Ewald Bastian , Schnelle Walter , Prots Yurii , Kniep Ruediger
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Hydrothermal Synthesis and Structural Characterizations of Two New Germanates with a Novel Topological Framework and Unusual Ge4(OH)4 Cubane.
Authors: Xu Yan , Cheng Liying , You Wansheng
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Structure and Magnetic Properties of Eu2CaCu2O6.
Authors: Xu Qiang , Klimczuk Tomasz , Jansen Jacob , Cava Robert J. , Zandbergen Henny W.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Iridium Catalysts with Bicyclic Pyridine—Phosphinite Ligands: Asymmetric Hydrogenation of Olefins and Furan Derivatives.
Authors: Kaiser Stefan , Smidt Sebastian P. , Pfaltz Andreas
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
New Recoverable Poly(ethylene glycol)‐Supported C1‐Diamino‐oligothiophene Ligands for Palladium‐Promoted Asymmetric Allylic Alkylation (AAA) Reactions.
Authors: Bandini Marco , Benaglia Maurizio , Quinto Tommaso , Tommasi Simona , Umani‐Ronchi Achille
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
L‐Proline in an Ionic Liquid as an Efficient and Reusable Catalyst for Direct Asymmetric α‐Aminoxylation of Aldehydes and Ketones.
Authors: Guo Hai‐Ming , Niu Hong‐Ying , Xue Meng‐Xia , Guo Qi‐Xiang , Cun Lin‐Feng , Mi Ai‐Qiao , Jiang Yao‐Zhong , Wang Jian‐Ji
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Inversion of Diastereoselectivity Depending on Substrate Concentration in Baker′s Yeast Catalyzed Reduction of σ‐Symmetrical 1,3‐Cyclopentadiones and 1,3‐Cyclohexadiones.
Authors: Katoh Takahiro , Mizumoto Shinsuke , Fudesaka Masato , Nakashima Yuki , Kajimoto Tetsuya , Node Manabu
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Cryovoltammetrically Probing Functional Group Reductive Cleavage: Alkyl—Sulfur versus Aryl—Sulfur Bond Cleavage in an Alkyl Naphthyl Thioether under Single Electron‐Transfer Is Temperature Switchable.
Authors: Paddon Christopher A. , Bhatti Farrah L. , Donohoe Timothy J. , Compton Richard G.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Fluorine‐Containing 3‐Arylhydrazono‐2,4‐dioxobutanoates in Reactions with Difunctional Nucleophiles.
Authors: Fokin A. S. , Burgart Ya. V. , Saloutin V. I.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Thermal and Metal‐Catalyzed Cyclization of 1‐Substituted 3,5‐Dien‐1‐ynes via a [1,7]‐Hydrogen Shift: Development of a Tandem Aldol Condensation—Dehydration and Aromatization Catalysis Between 3‐En‐1‐yn‐5‐al Units and Cyclic Ketones.
Authors: Lian Jian‐Jou , Lin Chung‐Chang , Chang Hsu‐Kai , Chen Po‐Chiang , Liu Rai‐Shung
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Prins Cyclizations in Au‐Catalyzed Reactions of Enynes.
Authors: Jimenez‐Nunez Eloisa , Claverie Christelle K. , Nieto‐Oberhuber Cristina , Echavarren Antonio M.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Oxidative Synthesis of Azacyclic Derivatives Through the Nitrenium Ion: Application of a Hypervalent Iodine Species Electrochemically Generated from Iodobenzene.
Authors: Amano Yoshiharu , Nishiyama Shigeru
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Studies on Novel Synthetic Methodologies. Part 95. A Mild, Rapid and Highly Regioselective Ring‐Opening of Epoxides and Aziridines with Acetic Anhydride under Solvent‐Free Conditions Using Ammonium‐12‐molybdophosphate.
Authors: Das Biswanath , Reddy V. Saidi , Tehseen Fouzia
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Highly Efficient RuCl3‐Catalyzed Disproportionation of (Diacetoxyiodo)benzene to Iodylbenzene and Iodobenzene; Leading to the Efficient Oxidation of Alcohols to Carbonyl Compounds.
Authors: Yusubov Mekhman S. , Chi Ki‐Whan , Park Joo Yeon , Karimov Rashad , Zhdankin Viktor V.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Chemoselective Bromination of Active Methylene and Methyne Compounds by Potassium Bromide, Hydrochloride Acid and Hydrogen Peroxide.
Authors: Kirihara Masayuki , Ogawa Shiho , Noguchi Takuya , Okubo Kumiko , Monma Yoshinari , Shimizu Ikuko , Shimosaki Ryuji , Hatano Akihiko , Hirai Yoshiro
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Lactones. Part 30. Reaction of Halolactones with Trialkyl Phosphites.
Authors: Pisarski Bartlomiej , Wawrzenczyk Czeslaw
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Perchloric Acid Adsorbed on Silica Gel (HClO4—SiO2) as an Extremely Efficient and Reusable Catalyst for 1,3‐Dithiolane/Dithiane Formation.
Authors: Rudrawar Santosh , Besra Ram C. , Chakraborti Asit K.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Salt‐Free Iridium‐Catalyzed Asymmetric Allylic Aminations with N,N‐Diacylamines and ortho‐Nosylamide as Ammonia Equivalents.
Authors: Weihofen Robert , Tverskoy Olena , Helmchen Guenter
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Construction of Tetrasubstituted Carbon by an Organocatalyst: Cyanation Reaction of Ketones and Ketimines Catalyzed by a Nucleophilic N‐Heterocyclic Carbene.
Authors: Fukuda Yoshimasa , Kondo Kazuhiro , Aoyama Toyohiko
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
o‐DPPB‐Directed Copper‐Mediated and ‐Catalyzed Allylic Substitution with Grignard Reagents.
Authors: Demel Peter , Keller Manfred , Breit Bernhard
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Homoallylic Amines via the Palladium‐Catalyzed Decarboxylative Coupling of Amino Acid Derivatives.
Authors: Burger Erin C. , Tunge Jon A.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Iron‐Catalyzed Allylation of Ketones.
Authors: Durandetti Muriel , Perichon Jacques
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Alkyl (R)‐Lactates and Alkyl (S,S)‐O‐Lactyllactates by Alcoholysis of rac‐Lactide Using Novozym 435.
Authors: Jeon Nan Young , Ko Sung‐Jin , Won Keehoon , Kang Han‐Young , Kim Bum Tae , Lee Yeon Soo , Lee Hyuk
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Preparation and Synthetic Application of Methyl β,β‐Difluoro‐α‐trimethylsilyloxyacrylate: A Fluoride Ion‐Promoted Desilylative‐Defluorination Route.
Authors: Takikawa Go , Toma Kouzou , Uneyama Kenji
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Rhodium‐Catalyzed Regio‐, Diastereo‐, and Enantioselective Intermolecular [4 + 2] Carbocyclization of 4‐Alkynals with Electron‐Deficient Alkenes.
Authors: Tanaka Ken , Hagiwara Yuji , Hirano Masao
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Design of Chiral N‐Triflyl Phosphoramide as a Strong Chiral Broensted Acid and Its Application to Asymmetric Diels—Alder Reaction.
Authors: Nakashima Daisuke , Yamamoto Hisashi
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of 4,5‐trans‐Substituted Cyclohexenones.
Authors: Kuendig E. Peter , Sau Manisankar , Perez‐Luna Alejandro
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Diels—Alder Reaction of 1‐Methylcycloprop‐2‐ene‐1‐carbonitrile with Methyl 2‐Oxo‐2H‐pyran‐5‐carboxylate.
Authors: Plemenkov V. V. , Ashirov R. V. , Lodochnikova O. A. , Litvinov I. A. , Zagidullin R. N.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Reduction of N‐Methoxy‐N‐Methylamides to the Corresponding Amines with AlCl3/LiAlH4.
Authors: Di Gioia Maria Luisa , Leggio Antonella , Le Pera Adolfo , Liguori Angelo , Perri Francesca , Viscomi Maria Caterina
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Efficient Synthesis of Chiral Phenethylamines: Preparation, Asymmetric Hydrogenation, and Mild Deprotection of Ene‐Trifluoroacetamides.
Authors: Allwein Shawn P. , McWilliams J. Christopher , Secord Elizabeth A. , Mowrey Dale R. , Nelson Todd D. , Kress Michael H.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Alkylation of Aldehydes with Trialkylboranes in Water.
Authors: Hirano Koji , Yorimitsu Hideki , Oshima Koichiro
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Towards the Development of Oxadiazinanones as Chiral Auxiliaries: Synthesis and Application of N3‐Haloacetyloxadiazinanones.
Authors: Hoover Trisha R. , Groeper Jonathan A. , Parrott Raleigh W. II , Chandrashekar Seshanand P. , Finefield Jennifer M. , Dominguez Alexandro , Hitchcock Shawn R.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Asymmetric Borane Reduction of Prochiral Ketones Using Imidazolium‐Tagged Sulfonamide Catalyst.
Authors: Yang Shang‐Dong , Shi Yun , Sun Zhen‐Hua , Zhao Ya‐Bin , Liang Yong‐Min
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Dibutyltin Oxide Catalyzed Allyl‐Transfer Reaction from Tertiary Homoallylic Alcohols to Aldehydes.
Authors: Yanagisawa Akira , Aoki Takahiro , Arai Takayoshi
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Copper(II) and 2,2′‐Biimidazolyl‐Promoted Ullmann Coupling Reaction of Phenols and Aryl Iodides.
Authors: Wang Bao‐An , Zeng Run‐Sheng , Wei Hui‐Qin , Jia Ai‐Quan , Zou Jian‐Ping
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
New Rhodium(II) Catalyzed Synthesis of 1,4‐Dicarbonyl Compounds from α‐Diazo Ketones Using Vinyl Ethers as Two‐Carbon Synthons.
Authors: Muthusamy Sengodagounder , Srinivasan Pandurangan
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of α‐Amino Acid Precursors Directly from Aldehydes Using Masked Acyl Cyanide Reagents and N,O‐Dialkylated Hydroxylamines.
Authors: Nemoto Hisao , Ma Rujian , Kawamura Tomoyuki , Kamiya Masaki , Shibuya Masayuki
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of α‐Chloroamides in Water.
Authors: Harte Andrew J. , Gunnlaugsson Thorfinnur
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Controllable Oxidation of Sulfides to Sulfoxides and Sulfones with Aqueous Hydrogen Peroxide in the Presence of β‐Cyclodextrin.
Authors: Ji Hong‐Bing , Hu Xiao‐Fang , Shi Dong‐Po , Li Zhong
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
meta‐Directing Cobalt‐Catalyzed Diels—Alder Reactions.
Authors: Hilt Gerhard , Janikowski Judith , Hess Wilfried
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Electroreductive Palladium‐Catalyzed Ullmann Reactions in Ionic Liquids: Scope and Mechanism.
Authors: Duran Pachon Laura , Elsevier Cornelis J. , Rothenberg Gadi
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Efficient Recycling in Suzuki—Miyaura Reactions of Aryl Chlorides with Arylboronic Acids Using Polymer‐Supported Aryldicyclohexylphosphine.
Authors: Glegola Katarzyna , Framery Eric , Pietrusiewicz K. Michal , Sinou Denis
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Efficient Construction of Biaryls and Macrocyclic Cyclophanes via Electron‐Transfer Oxidation of Lipshutz Cuprates.
Authors: Miyake Yoshihiro , Wu Mo , Rahman M. Jalilur , Kuwatani Yoshiyuki , Iyoda Masahiko
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Efficient Synthesis of 4,4′‐Diaminodiphenic Acid.
Authors: Rubezhov Arkadiy
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Improved Procedure for the Robinson Annulation Reaction of Some Chalcones Catalyzed by K2CO3 under Ultrasound.
Authors: Safaei‐Ghomi Javad , Alishahi Zohreh
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Environmentally Friendly Synthesis of Functionalized Indans Using Electrochemical Cyclization of ortho‐Halo‐Substituted Homoallyl Ethers and Esters.
Authors: Olivero Sandra , Perriot Rodolphe , Dunach Elisabet , Baru Ashvin R. , Bell Eric D. , Mohan Ram S.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stereochemistry of the Tetrabutylammonium Cyanide Catalyzed Cyanosylilation of Cyclic α,β‐Epoxyketones — Dependence of the Diastereoselectivity on the Ring Size.
Authors: Aljarilla Ana , Cordoba Ruben , Csaky Aurelio G. , Fernandez Israel , Lopez Ortiz Fernando , Plumet Joaquin , Ruiz Gomez Gloria
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of 3,3‐Difluoroazetidines.
Authors: Van Brabandt Willem , De Kimpe Norbert
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Mild Access to γ‐ or δ‐Alkylidene Lactones Through Gold Catalysis.
Authors: Harkat Hassina , Weibel Jean‐Marc , Pale Patrick
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Imidazole and Imidazolium Porphyrins.
Authors: Seng Virginia , Wang Xiulan , Ali Rukya , Fang Weici , Charles‐Pierre Farah , Bhagan Salome , Hyslop Alison G.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Strained Enamines as Versatile Intermediates for Stereocontrolled Construction of Nitrogen Heterocycles.
Authors: Chen Gang , Sasaki Mikio , Li Xinghan , Yudin Andrei K.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Syntheses of Novel Derivatives of 2‐Acetylfuro[2,3‐a]carbazoles, Benzo[1,2‐b]‐1,4‐thiazepino[2,3‐a]carbazoles and 1‐Acetyloxycarbazole‐2‐carbaldehydes.
Authors: Sangeetha V. , Prasad K. J. Rajendra
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
N‐Acyliminium Ion Cyclizations of Trimethylsilylmethylallenes.
Authors: Kim Sang Hee , Kim Hyung Gyu , Choo Hyunah , Cha Joo Hwan , Pae Ae Nim , Koh Hun Yeong , Chung Bong Young , Cho Yong Seo
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stereocontrolled Synthesis of Trisubstituted Cyclopropanes: Expedient, Atom‐Economical, Asymmetric Syntheses of (+)‐Bicifadine and DOV21947.
Authors: Xu Feng , Murry Jerry A. , Simmons Bryon , Corley Edward , Fitch Kenneth , Karady Sandor , Tschaen David
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Tetrathiafulvalene Revisited.
Authors: Batsanov Andrei S.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Modular Synthesis of Heterocyclic Carbene Precursors.
Authors: Paczal Attila , Benyei Attila C. , Kotschy Andras
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Improved Synthesis of 2‐n‐(Propyl)‐1H‐imidazole‐4,5‐dicarboxylic Acid Diethyl Ester.
Authors: Wen Xinmin , Yu Xinhong , Tang Jan
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Efficient Synthesis of 2‐Imidazol‐2‐ylacetates.
Authors: Ha Jae Du , Lee Su Jung , Nam So Yeun , Kang Seung Kyu , Cho Seung Yoon , Ahn Jin Hee , Choi Joong‐Kwon
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Efficient Conversion of Nitronate into Nitrile Oxide Using Cyanuric Chloride. One‐Pot Synthesis of Bicyclic Isoxazolines and Isoxazoles from Nitroalkenes.
Authors: Gao Shijay , Tu Zhijay , Kuo Chun‐Wei , Liu Ju‐Tsung , Chu Cheng‐Ming , Yao Ching‐Fa
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Vilsmeier—Haack Reaction of Substituted 2‐Acetamidothiazole Derivatives and Their Antimicrobial Activity.
Authors: Koti R. S. , Kolavi G. D. , Hegde V. S. , Khazi I. M.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Efficient Access to Chiral N‐Substituted Saccharin Analogues via the Directed ortho‐Lithiation of 3‐N‐Arylsulfonyloxazolidin‐2‐ones.
Authors: Aliyenne A. Ould , Khiari J. E. , Kraiem J. , Kacem Y. , Ben Hassine B.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
3‐(Polyhaloacyl)chromones and Their Hetero Analogues: Synthesis and Reactions with Amines.
Authors: Sosnovskikh Vyacheslav Ya. , Irgashev Roman A. , Barabanov Mikhail A.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Organocatalytic Synthesis of Chiral Benzopyrans.
Authors: Govender Thavendran , Hojabri Leila , Moghaddam Firouz Matloubi , Arvidsson Per I.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Tetrahydropyran‐4‐ones and Thiopyran‐4‐ones from Donor‐Substituted α‐Bromostyrene Derivatives.
Authors: Rosiak Anna , Frey Wolfgang , Christoffers Jens
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Studies on Novel Synthetic Methodologies. Part 70. An Efficient One‐Pot Synthesis of Polyhydroquinolines at Room Temperature Using HY‐Zeolite.
Authors: Das Biswanath , Ravikanth Bommena , Ramu Ravirala , Rao Bommena Vittal
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis, Characterization and in vitro anti‐JEV Activity of N‐[p‐{3′‐(2′‐Aryl‐4′‐oxo‐1′,3′‐thiazolyl)}diphenyl] ‐7‐hydroxy‐4‐methyl‐2‐oxoquinolines.
Authors: Bishnoi Abha , Srivastava Krishna , Joshi M. N.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Indium‐Mediated Reductive Cyclization of 2‐Nitrochalcones to Quinolines.
Authors: Han Rongbi , Chen Shen , Lee Sun Jung , Qi Fang , Wu Xue , Kim Byeong Hyo
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Transfer Hydrogenation of Isoquinolinium Salts Catalyzed by a Rhodium Complex.
Authors: Wu Jiashou , Liao Jian , Zhu Jin , Deng Jingen
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Ionic Liquid in Organic Synthesis: The Pictet—Spengler Reaction.
Authors: Wang Huey‐Min , Hou Rei‐Sheu , Huang Hsin‐Yu , Chen Ling‐Ching
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
New and Efficient RCM in Pyridinic Series: Synthesis of 2H‐Dihydropyrano‐ or 2,3H‐Dihydrooxepino[3,2‐b]pyridines.
Authors: Banaszak Estelle , Comoy Corinne , Fort Yves
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Efficient Synthesis of 3‐(4‐Methyl‐3‐phenylfuro[3,2‐c]quinoline‐2‐carbonyl)chromen‐2‐ones (III) under Microwave Irradiation.
Authors: Kumar V. Naveen , Rajitha B.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Improved Synthesis of Cationic Pyridinium‐Substituted Indolizines.
Authors: Furdui Bianca , Dinica Rodica , Druta Ioan I. , Demeunynck Martine
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Efficient Synthesis of New 8‐Aryl Tricyclic Pyridinones.
Authors: Castera‐Ducros Caroline , Crozet Maxime D. , Vanelle Patrice
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Microwave‐Promoted Facile and Rapid Solvent‐Free Synthesis Procedure for the Efficient Synthesis of 3,4‐Dihydropyrimidin‐2(1H)‐ones and ‐thiones Using ZrO2/SO42‐ as a Reusable Heterogeneous Catalyst.
Authors: Gopalakrishnan Mannathusamy , Sureshkumar Purushothaman , Kanagarajan Vijayakumar , Thanusu Jeyaraman , Govindaraju Ramalingam , Ezhilarasi Muthuvel R.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Heterocyclic and Non‐Heterocyclic Entities as Antibacterial and anti‐HIV Agents.
Authors: Patel R. B. , Chikhalia K. H.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Efficient One‐Pot Synthesis of Octahydroquinazolinone Derivatives Using Catalytic Amount of H2SO4 in Water.
Authors: Hassani Zahra , Islami Mohammad Reza , Kalantari Maryam
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Practical and Green Approach Toward Synthesis of N3‐Substituted Dihydropyrimidinones: Using Aza‐Michael Addition Reaction Catalyzed by KF/Al2O3.
Authors: Wang Xicun , Quan Zhengjun , Wang Jun‐Ke , Zhang Zhang , Wang Mangang
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Straightforward Access to Pyrazines, Piperazinones and Quinoxalines by Reactions of 1,2‐Diaza‐1,3‐butadienes with 1,2‐Diamines under Solution, Solvent‐Free, or Solid‐Phase Conditions.
Authors: Aparicio Domitila , Attanasi Orazio A. , Filippone Paolino , Ignacio Roberto , Lillini Samuele , Mantellini Fabio , Palacios Francisco , de los Santos Jesus M.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Cyclotrimerization of Aliphatic Aldehydes Catalyzed by Ionic Liquids.
Authors: Yu Xin‐Yu , Liu Cai‐Hua , Yang Jian‐Guo , He Ming‐Yuan
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Application of Olefin Metathesis for the Synthesis of Constrained β‐Amino Esters from Norbornenes.
Authors: Nadany Adam E. , Mckendrick John E.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Unsaturated Organotrifluoroborates via Wittig and Horner—Wadsworth—Emmons Olefination.
Authors: Molander Gary A. , Figueroa Ruth
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Direct Preparation of (Z)‐1,3‐Enyne Systems with a TMS‐Propargylic Sulfone: Application of a One‐Pot Julia Olefination.
Authors: Bonini Carlo , Chiummiento Lucia , Videtta Valeria
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Convenient and Versatile Preparation of Unsymmetrical Bis‐metallic Isobutene Derivatives.
Authors: Driesschaert Benoit , Leroy Bernard
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Reactivity of Imide‐Derived Bisvinyl Phosphates. Reactivity of 2,6‐Disubstituted 1,4‐Dihydropyridines.
Authors: Mousset Deborah , Gillaizeau Isabelle , Sabatie Andrea , Bouyssou Pascal , Coudert Gerard
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Direct Access to Enantiomerically Enriched α‐Amino Phosphonic Acid Derivatives by Organocatalytic Asymmetric Hydrophosphonylation of Imines.
Authors: Pettersen Daniel , Marcolini Mauro , Bernardi Luca , Fini Francesco , Herrera Raquel P. , Sgarzani Valentina , Ricci Alfredo
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Microwave‐Assisted Cleavage of Phosphate, Phosphonate and Phosphoramide Esters.
Authors: Kumar G. D. Kishore , Saenz David , Lokesh G. L. , Natarajan Amarnath
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Fmoc‐Protected β‐Amino Alcohols and Peptidyl Alcohols from Fmoc‐Amino Acid/Peptide Acid Azides.
Authors: Babu Vommina V. Suresh , Kantharaju Kantharaju , Sudarshan Naremaddepalli S.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Reactivity of per‐O‐Acetylated 1‐Thioglycosides and Glycosyl Sulfones Towards Chromium(II) Complexes in Aqueous Medium.
Authors: Micskei Karoly , Juhasz Zsuzsa , Ratkovic Zoran R. , Somsak Laszlo
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Convergent Stereocontrolled Synthesis of Substituted exo‐Glycals by Stille Cross‐Coupling of Halo‐exo‐glycals and Stannanes.
Authors: Gomez Ana M. , Barrio Aitor , Amurrio Inigo , Valverde Serafin , Jarosz Slawomir , Lopez J. Cristobal
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of 2‐(5‐Azido‐5‐deoxy‐β‐D‐ribofuranosyl) ‐4‐methyl‐5‐nitro‐1,2,3‐triazole (X)
Authors: Banda Geetha , Srinivasulu D. , Ugandhar V. , Chakravarthy I. E.
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
epi‐Aszonalenins A, B, and C from Aspergillus novofumigatus.
Authors: Rank Christian , Phipps Richard Kerry , Harris Pernille , Frisvad Jens Christian , Gotfredsen Charlotte Held , Larsen Thomas Ostenfeld
Published: November 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.