bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reflex and Tonic Autonomic Markers for Risk Stratification in Patients With Type 2 Diabetes Surviving Acute Myocardial Infarction
Authors: Barthel Petra , Bauer Axel , Müller Alexander , Junk Nadine , Huster Katharina M. , Ulm Kurt , Malik Marek , Schmidt Georg 
Published: June 2011

OBJECTIVE
Diabetic postinfarction patients are at increased mortality risk compared with nondiabetic postinfarction patients. In a substantial number of these patients, diabetic cardiac neuropathy already preexists at the time of the infarction. In the current study we investigated if markers of autonomic dysfunction can further discriminate diabetic postinfarction patients into low- and high-risk groups.

RESEARCH DESIGN AND METHODS
We prospectively enrolled 481 patients with type 2 diabetes who survived acute myocardial infarction (MI), were aged ≤80 years, and presented in sinus rhythm. Primary end point was total mortality at 5 years of follow-up. Severe autonomic failure (SAF) was defined as coincidence of abnormal autonomic reflex function (assessed by means of heart rate turbulence) and of abnormal autonomic tonic activity (assessed by means of deceleration capacity of heart rate). Multivariable risk analyses considered SAF and standard risk predictors including history of previous MI, arrhythmia on Holter monitoring, insulin treatment, and impaired left ventricular ejection fraction (LVEF) ≤30%.

RESULTS
During follow-up, 83 of the 481 patients (17.3%) died. Of these, 24 deaths were sudden cardiac deaths and 21 nonsudden cardiac deaths. SAF identified a high-risk group of 58 patients with a 5-year mortality rate of 64.0% at a sensitivity level of 38.0%. Multivariately, SAF was the strongest predictor of mortality (hazard ratio 4.9 [95% CI 2.4–9.9]), followed by age ≥65 years (3.4 [1.9–5.8]), and LVEF ≤30% (2.6 [1.5–4.4]).

CONCLUSIONS
Combined abnormalities of autonomic reflex function and autonomic tonic activity identifies diabetic postinfarction patients with very poor prognoses.
Validation of the Diabetes Prevention Trial–Type 1 Risk Score in the TrialNet Natural History Study
Authors: Sosenko Jay M. , Skyler Jay S. , Mahon Jeffrey , Krischer Jeffrey P. , Beam Craig A. , Boulware David C. , Greenbaum Carla J. , Rafkin Lisa E. , Cowie Catherine , Cuthbertson David , Palmer Jerry P. ,   the Type 1 Diabetes TrialNet and Diabetes Prevention Trial–Type 1 Study Groups
Published: June 2011

OBJECTIVE
We assessed the accuracy of the Diabetes Prevention Trial–Type 1 Risk Score (DPTRS), developed from the Diabetes Prevention Trial–Type 1 (DPT-1), in the TrialNet Natural History Study (TNNHS).

RESEARCH DESIGN AND METHODS
Prediction accuracy of the DPTRS was assessed with receiver-operating characteristic curve areas. The type 1 diabetes cumulative incidence within the DPTRS intervals was compared between the TNNHS and DPT-1 cohorts.

RESULTS
Receiver-operating characteristic curve areas for the DPTRS were substantial in the TNNHS (P &lt; 0.001 at both 2 and 3 years). The type 1 diabetes cumulative incidence did not differ significantly between the TNNHS and DPT-1 cohorts within DPTRS intervals. In the TNNHS, 2-year and 3-year risks were low for DPTRS intervals &lt;6.50 (&lt;0.10 and &lt;0.20, respectively). Thresholds ≥7.50 were indicative of high risk in both cohorts (2-year risks: 0.49 in the TNNHS and 0.51 in DPT-1).

CONCLUSIONS
The DPTRS is an accurate and robust predictor of type 1 diabetes in autoantibody-positive populations.
Pattern avoiding partitions and Motzkin left factors
Authors: Mansour Toufik , Shattuck Mark 
Published: June 2011

Abstract
Let L
n, n ≥ 1, denote the sequence which counts the number of paths from the origin to the line x = n − 1 using (1, 1), (1, −1), and (1, 0) steps that never dip below the x-axis (called Motzkin left factors). The numbers L
n count, among other things, certain restricted subsets of permutations and Catalan paths. In this paper, we provide new combinatorial interpretations for these numbers in terms of finite set partitions. In particular, we identify four classes of the partitions of size n, all of which have cardinality L
n and each avoiding a set of two classical patterns of length four. We obtain a further generalization in one of the cases by considering a pair of statistics on the partition class. In a couple of cases, to show the result, we make use of the kernel method to solve a functional equation arising after a certain parameter has been introduced.
Structures et généralité en théorie combinatoire : les mathématiques et les lettres
Authors: Halimi Brice 
Published: June 2011

Résumé Intervertir a et b , c’est mettre b à la place de a et a à la place de b . Dans le cas où a occupait la première place et b la deuxième, c’est mettre b à la première place et a à la deuxième. Dans le cas où, de plus, a est le chiffre ‘1’ et b le chiffre ‘2’, c’est mettre 2 à la place n? 1 et 1 à la place n? 2. La théorie des substitutions combine ainsi naturellement chiffres et numéros de place. Cet article montre que la confusion de ces deux éléments (chiffres et numéros) constitue un cas exemplaire de mécompréhension en mathématiques. Positivement, reconnaître à leur juste valeur toutes les numérotations ou paramétrisations qui interviennent en mathématiques, c’est reconnaître que les mathématiques ont rarement affaire à des structures sans l’intermédiaire essentiel de repères permettant de « fixer les idées ». L’article montre en particulier qu’une description structuraliste satisfaisante de l’objectivité mathématique ne peut faire l’économie de tels repères.
Lack of Prognostic Significance of Connexin-43 Labeling in a Series of 46 Gastrointestinal Stromal Tumors
Authors: Boban Marko , Ljubicic Neven , Nikolic Marko , Tomas Davor , Zovak Mario , Bekavac-Beslin Miroslav , Belev Borislav , Radic Jasna , Milosevic Milan 
Published: June 2011

Background Gastrointestinal stromal tumors (GISTs) are mesenchymal tumors with variable malignant potential. Connexin-43 (C×43) is the commonest gap-junction protein and has been frequently investigated in oncology. Our aim was to establish the immunohistochemical expression of C×43 in relation to GIST location, size, Ki67 index, tumor grade and follow-up. Materials and methods The study included postoperative samples of 46 patients treated for GIST in the 1999–2010 time frame. Complete clinical workup was available for 38 patients (82.6%); total surgical resection was carried out in 32 (84.2%) patients, while 13 (34.2%) patients underwent chemotherapy. Median follow-up was 40.7 months (range, 1-134). Results The calculated incidence of GIST in our setting was 11.5 per million. C×43 was expressed in 43/46 (93.5%) GIST cases, with a significant difference between stomach- and small intestine-derived tumors (p=0.006). Ki67 was 10% on average (range, 1–22) and was not correlated with tumor location (p=0.194). C×43 did not show significance with regard to tumor size (p=0.264) or higher tumor grade (p=0.658), as opposed to Ki67, which significantly correlated with both (p=0.0048 and p<0.001, respectively). C×43 and Ki67 were not significantly correlated (p=0.708). Ki67 correlated with time to recurrence (p=0.022). Ki67 >11% was taken as the indication to start imatinib chemotherapy (sensitivity 61.5%, specificity 92.0%, p=0.022). Ten (66.7%) of 15 patients with long-term (>5 years) follow-up were in remission. Conclusion C×43 was frequently expressed in GISTs regardless of tumor site. However, no significant relationships to histopathological parameters suggestive for prognosis were found. Further investigations might clarify the roles of C×43 in GIST oncogenesis.
Diastereo‐ and Enantioselective Direct Aldol Reactions in Aqueous Medium: A New Highly Efficient Proline‐Sugar Chimeric Catalyst
Authors: Pedatella Silvana , De Nisco Mauro , Mastroianni Domenico , Naviglio Daniele , Nucci Ada , Caputo Romualdo 
Published: June 2011

AbstractA new synthetic catalyst, capable of acting like an enzyme in the accomplishment of direct aldol reactions, is presented. Excellent results, in terms of chemical yields and diastereo‐/enantiomeric ratios, are reported for the catalyzed additions of cyclohexanone to variously substituted benzaldehydes.
Melt functionalization of LDPE with thio ester, amino ester, and hydroxy ester by thermolysis method—An FTIR study
Authors: Anbarasan R. , Dhanalakshmi V. 
Published: June 2011

AbstractLow density poly(ethylene) (LDPE) was melt functionalized with three different esters namely, thio ester, amino ester, and hydroxy ester under inert atmosphere at 160°C with different experimental conditions. During the functionalization reaction, crosslinking (C.L) and CC formation are the simultaneous competitive reactions. FTIR‐RI analysis method was used to determine the % functionalization onto LDPE backbone and the order of functionalization reaction. Thermogravemetric analysis (TGA) and Differential scanning calorimetry (DSC) were used to assess the thermal properties of the functionalized LDPE. Suitable reaction scheme was proposed. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
Transparent, fluorescent, and mechanical enhanced elastomeric composites formed with poly (styrene‐butadiene‐styrene) and SiO2‐hybridized CdTe quantum dots
Authors: Wu Guoliang , Zhou Li , Yan Sijia , Xia Xinnian , Xiong Yuanqin , Xu Weijian 
Published: June 2011

AbstractTransparent poly(styrene‐butadiene‐styrene) (SBS)‐quantum dots (QDs) composites (SBS/CdTe QDs) that simultaneously possess strong photoluminescence (PL) and enhanced mechanical properties are presented for the first time based on the facile blending of SiO2‐hybridized CdTe QDs with SBS. UV–vis spectrum and fluorescence measurement show that SBS/CdTe QDs composites exhibit good optical properties. The results of transmission electron microscopy show good dispersion of CdTe QDs in the SBS matrix. The results of dynamic mechanical thermal analysis indicate that the micro‐phase separated structure of the SBS is exist in the composites, and the presence of CdTe QDs can lead to an decrease of glass transition temperatures of polybutadiene (PB) and polystyrene(PS) domains. In addition, mechanical tests reveal that the addition of CdTe QDs is a useful approach to improve the mechanical properties of SBS. Meanwhile, the fluorescent photographs taken under ultraviolet light prove that SBS/CdTe QDs composites possess strong PL. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011.
Licofelone–Nitric Oxide Donors as Anticancer Agents
Authors: Liu Wukun , Zhou Jinpei , Liu Yinglin , Liu Haoran , Bensdorf Kerstin , Guo Cancheng , Gust Ronald 
Published: June 2011

AbstractFive licofelone ([2,2‐dimethyl‐6‐(4‐chlorophenyl)‐7‐phenyl‐2,3‐dihydro‐1H‐pyrrolizin‐5‐yl]acetic acid) nitric oxide donor conjugates were developed by a parallel synthesis approach. The biological screening revealed that compounds with a propyl (6b), butyl (6c), or octyl (6d) chain between licofelone and the nitric oxide donor exhibited high antiproliferative potency at MCF‐7 and MDA‐MB–231 breast cancer as well as at HT‐29 colon cancer cells. Moreover, 6b–d possessed at least 2‐fold higher cytotoxicity at MDA‐MB‐231 cells than the parent compound licofelone although they showed less inhibitory activity at COX‐1 and COX‐2. A correlation between COX inhibition and growth inhibitory properties is not visible. However, the high levels of nitric oxide production of the compounds may result in their high cytotoxic activity.
Halogen‐Metal Secondary Bonding). An NQR Study in Mercury and Cadmium Halide Adducts of Polyethers
Authors: Wulfsberg Gary , Weiss Alarich 
Published: June 2011

AbstractHalogen atoms bridge metal atoms by forming two M — X bonds of about equal length („symmetric bridging”︁, as in cadmium halide adducts of oxygen‐donor ligands), or by forming two bonds of significantly different lengths („secondary bridging”︁, as mercuric halide adducts of the same ligands). Halogen (35Cl, 81Br, 127I) NQR spectra of the title and related complexes show characteristic differences for the two types of bridging. Bridging halogen atoms (in nontransition metal halides) have lower frequencies than do analogous terminal halogen atoms; if the bridging is symmetric, the lowering depends on the bridging angle and is quite variable; if the bridging is secondary, the lowering is less but relatively constant. Asymmetry parameters for symmetrically‐bridging halogens are often large and depend on the bridging angle; those of secondary‐bridging halogens are small. The temperature dependence of the NQR frequencies of symmetric bridging halogens is normal negative; that of secondary bridging halogens is less negative than for analogous terminal halogens, and may even be positive. Two Townes‐Dailey treatments of secondary bridging have been developed: one assumes the use of sp hybrid orbitals by the halogen, and the other uses pure p orbitals for the secondary bond. Analysis of the data leads to a picture of the formation of a “typical” secondary bond: 0.03 electrons are polarized or transferred towards the metal atom from the halogen p, orbital, and the halogen acquires an additional 0.01 electron in the original M — X bond.
It takes guts to grow a brain
Authors: Diamond Betty , Huerta Patricio T. , Tracey Kevin , Volpe Bruce T. 
Published: June 2011

AbstractA new study entitled “Normal gut microbiota modulates brain development and behavior”, published in the Proceedings of the National Academy of Sciences, requires that we reconsider the notion that the brain is an immune‐privileged site. The authors demonstrate that intestinal microbiota must be present within a set time‐frame for normal synaptogenesis to occur in the brain. In the absence of intestinal microbiota, histopathological and behavioral abnormalities arise. These observations necessitate a new look at the many interconnections of the immune system and the brain, suggesting new frontiers for research and new therapeutic strategies for neurodevelopmental diseases.
meso‐Aryl Phenanthroporphyrins: Synthesis and Spectroscopic Properties
Authors: Xu Hai‐Jun , Mack John , Descalzo Ana B. , Shen Zhen , Kobayashi Nagao , You Xiao‐Zeng , Rurack Knut 
Published: June 2011

AbstractThe successful synthesis of tetraphenyltetraphenanthroporphyrin (TPTPhenP; 5 a) in 2006 under modified Rothemund–Lindsey conditions yielded a tetraphenyl porphyrinoid with a B band redshifted to an unprecedented 576 nm. Radially symmetric fused‐ring expansion of tetraphenylporphyrin with phenanthrene moieties results in very deep saddling due to steric crowding and very marked redshifts of the Q and B (or Soret) porphyrinoid absorption bands. The extent to which the TPTPhenP structure can be further modified is explored, and the optical properties of TPTPhenPs are analyzed based on a perimeter model approach that makes use of time‐dependent DFT calculations and magnetic circular dichroism spectroscopy and also based on a detailed analysis of the fluorescence emission. Attempts to introduce substituents at the ortho and meta positions of the meso‐phenyl groups and to insert a central metal proved unsuccessful. The synthesis of a series of TPTPhenPs with strong electron‐withdrawing (CN, NO2) and ‐donating (CH3, N(CH3)2) substituents at the para positions of the meso‐phenyl rings is reported. Marked redshifts of the main spectral bands were consistently observed. The most pronounced spectral changes were observed with N(CH3)2 groups (5 i) due to a marked destabilization of the HOMO, which has large MO coefficients on the meso‐carbon atoms. Protonation of 5 i at both the ligand core and at the N(CH3)2 groups resulted in unprecedented Q00 band absorption at wavelengths greater than 1200 nm.
ChemInform Abstract: Quantum‐Chemical Calculations and IR Spectra of the (F2)MF2 Molecules (M: B, Al, Ga, In, Tl) in Solid Matrices: A New Class of Very High Electron Affinity Neutral Molecules.
Authors: Wang Xuefeng , Andrews Lester 
Published: June 2011

AbstractThe new class of neutral adduct molecules (F2)MF2 (M: B, Al, Ga, In, Tl) forms by reaction of laser‐ablated group 13 metal atoms with F2 in excess Ar and Ne during condensation at 5 K.
ChemInform Abstract: New Complex Intermetallic in the Al—Rh—Ru Alloy System.
Authors: Meshi L. , Samuha S. , Kapush D. , Pavlyuchkov D. , Grushko B. 
Published: June 2011

AbstractThe new intermetallic phase Al77Rh15Ru8 is identified in the title system by powder XRD, SEM, and TEM.
ChemInform Abstract: Optical Properties of Sputtered Hexagonal CdZnO Films with Band Gap Energies from 1.8 to 3.3 eV.
Authors: Ma Xiangyang , Chen Peiliang , Zhang Ruijie , Yang Deren 
Published: June 2011

AbstractCdxZn1‐xO (0 ≤ x ≤ 0.66) films are prepared by reactive direct‐current magnetron sputtering.
ChemInform Abstract: Effects of Partial Anion Substitution on the Thermoelectric Properties of Silver(I) Chalcogenide Halides in the System Ag5Q2X with Q= Te, Se and S and X: Br and Cl.
Authors: Eckstein Nadine , Nilges Tom , Decourt Rodolphe , Bobet Jean‐Louis , Chevalier Bernard 
Published: June 2011

AbstractAg5Te2Cl1‐xBrx (x = 0.2, 0.4, 0.6), Ag5Te2‐ySyCl (y = 0.1, 0.3), and Ag5Te2‐zSezCl (z = 0.2, 0.4, 0.6) are synthesized from stoichiometric mixtures of Ag, S, Se, Te, AgCl, and AgBr (1173 K, 3 h) and characterized by powder XRD, and thermoelectric measurements.
ChemInform Abstract: The Influence of SO2 and NO2 Impurities on CO2 Gas Hydrate Formation and Stability.
Authors: Beeskow‐Strauch Bettina , Schicks Judith M. , Spangenberg Erik , Erzinger Joerg 
Published: June 2011

AbstractIn an attempt to provide data concerning the industrial carbon capture and storage in gas hydrate reservoirs under real conditions, the influence of small amounts of SO2 and NO2 impurities on CO2 hydrate formation, behavior, and stability is investigated by Raman spectroscopy, DSC, and XRD.
ChemInform Abstract: Synthesis and Characterization of Cu(InxB1‐x)Se2 Nanocrystals for Low‐Cost Thin Film Photovoltaics.
Authors: Chen Lin‐Jer , Liao Jiunn‐Der , Chuang Yu‐Ju , Fu Yaw‐Shyan 
Published: June 2011

AbstractCu(In0.9B0.1)Se2 nanocrystals are solvothermally synthesized from a stoichiometric mixture of Se, CuCl, InCl3, and B2O3 in diethylenetriamine (autoclave, 180 °C, 36 h).
ChemInform Abstract: A Facile Direct anti‐Selective Catalytic Asymmetric Mannich Reaction of Aldehydes with Preformed N‐Boc and N‐Cbz Imines.
Authors: Chuan Yong‐Ming , Chen Gui‐Hua , Gao Jiu‐Zhi , Zhang Hui , Peng Yun‐Gui 
Published: June 2011

AbstractThe application of the chiral pyrrolidine based thiourea organocatalyst (PTU) produces the anti‐Mannich products in excellent yields as well as diastereo‐ and enantioselectivities.
ChemInform Abstract: Divergent Reaction Pathways of a Cationic Intermediate: Rearrangement and Cyclization of 2‐Substituted Furyl and Benzofuryl Enones Catalyzed by Iridium(III).
Authors: Vaidya Tulaza , Manbeck Gerald F. , Chen Sylvia , Frontier Alison J. , Eisenberg Richard 
Published: June 2011

AbstractIn the presence of IRC and AgSbF6, furyl and benzofuryl enones like (I) and (V) undergo unexpected cyclization to afford fused cyclohexenones.
ChemInform Abstract: A Green Procedure for the Oxidation of Benzyl Halides to Aromatic Aldehydes or Ketones in Aqueous Media.
Authors: Zheng Pengwu , Yan Li , Ji Xiujie , Duan Xuemin 
Published: June 2011

AbstractBenzyl halides are transformed to aldehydes or ketones, resp., using in situ generated trimethylamine N‐oxide as oxidizing agent A plausible reaction mechanism is proposed.
ChemInform Abstract: Catalyst‐Free and Solventless Hantzsch Ester Mediated Reduction of Nitroolefins at Elevated Temperature.
Authors: Chauhan Pankaj , Kaur Kirandeep , Bala Neeraj , Kumar Vikas , Chimni Swapandeep Singh 
Published: June 2011

AbstractAn improved protocol for the Hantzsch ester mediated reduction of nitroolefins to corresponding nitroalkanes (15 examples) is developed.
ChemInform Abstract: Ti/Pd Bimetallic Systems for the Efficient Allylation of Carbonyl Compounds and Homocoupling Reactions.
Authors: Millan Alba , Campana Araceli G. , Bazdi Btissam , Miguel Delia , Alvarez de Cienfuegos Luis , Echavarren Antonio M. , Cuerva Juan M. 
Published: June 2011

AbstractThe allylation of a variety of aldehydes and ketones with stable and easily handled allylic carbonates is efficiently achieved in the presence of a Ti—Pd catalytic system.
ChemInform Abstract: A Novel Synthetic Method for the Preparation of Aliphatic Aldehydes from the Corresponding Carboxylic Acids.
Authors: Guo Yuan , Lu Zhenhuan , Yao Libo , Shi Zhen 
Published: June 2011

AbstractA novel method for the synthesis of aliphatic aldehydes from corresponding carboxylic acids (II) via 1,3‐dimethylbenzimidazolium salts (V) is developed.
ChemInform Abstract: Lewis Acid Catalyzed Oxidative Allylation: A New Approach for the Synthesis of Homoallylic Alcohols and Amines Directly from Alcohols.
Authors: Srivastava Vishnu P. , Patel Rajesh , Yadav Lal Dhar S. 
Published: June 2011

AbstractHomoallylic alcohols and amines are synthesized directly from alcohols via one‐pot sequential oxidation—Barbier reaction and oxidation—condensation—Barbier reactions.
ChemInform Abstract: Cyanides‐Free Cyanation of Aryl Halides Using Formamide.
Authors: Sawant Dinesh N. , Wagh Yogesh S. , Tambade Pawan J. , Bhatte Kushal D. , Bhanage Bhalchandra M. 
Published: June 2011

AbstractFormamide is used as a non‐toxic cyanide source and as a solvent.
ChemInform Abstract: Solvent‐Free Synthesis, Spectral Studies and Antioxidant Activities of Some 6‐Substituted ω‐Bromo‐2‐naphthyl Ketones and Their Esters.
Authors: Thirunarayanan G. , Vanangamudi G. , Sathiyendran V. , Ravi K. 
Published: June 2011

AbstractAn efficient method for the selective bromination of the side chain in naphthyl ketones (I) using a bromate—bromide mixture in aqueous medium is developed.
ChemInform Abstract: Facile Synthesis of Diiodinated Dihydronaphthalenes and Naphthalenes via Iodine Mediated Electrophilic Cyclization.
Authors: Yang Fan , Jin Tienan , Bao Ming , Yamamoto Yoshinori 
Published: June 2011

AbstractA variety of dihydronaphthalenes is readily prepared by electrophilic iodocyclization of aryl propargyl alcohols.
ChemInform Abstract: Synthesis of Indenes by Intramolecular Morita—Baylis—Hillman Reaction in Aqueous Media Catalyzed by Resin‐Supported Proline.
Authors: Akagawa Kengo , Sakamoto Seiji , Kudo Kazuaki 
Published: June 2011

AbstractIn case of substrates (III), an isomerization leads to formation of mixture of an inseparable mixture of isomers.
ChemInform Abstract: One‐Pot Synthesis of Chiral α‐Substituted β,y‐Epoxy Aldehyde Derivatives Through an Asymmetric Aldol Reaction of Chloroacetaldehyde.
Authors: Hayashi Yujiro , Yasui Yusuke , Kawamura Tsuyoshi , Kojima Masahiro , Ishikawa Hayato 
Published: June 2011

AbstractA one‐pot synthesis of the epoxy aldehydes and their corresponding precursor chlorohydrins is developed through a series of one‐pot reactions using a diarylprolinol as the organocatalyst.
ChemInform Abstract: A Flexible and Stereoselective Synthesis of Azetidin‐3‐ones Through Gold‐Catalyzed Intermolecular Oxidation of Alkynes.
Authors: Ye Longwu , He Weimin , Zhang Liming 
Published: June 2011

AbstractA practical synthesis of azetidin‐3‐ones including chiral derivatives is developed through gold‐catalyzed oxidative cyclization of N‐propargylsulfonamides.
ChemInform Abstract: Lewis Acid/Base Catalyzed [2 + 2]‐Cycloaddition of Sulfenes and Aldehydes: A Versatile Entry to Chiral Sulfonal and Sulfinyl Derivatives.
Authors: Koch Florian M. , Peters Rene 
Published: June 2011

AbstractThe first catalytic asymmetric synthesis of β‐sulfones is presented, providing access to various enantioenriched sulfonyl and sulfinyl compounds based on ring‐opening reactions (not shown).
ChemInform Abstract: Synthesis of 2,3,5‐Trisubstituted Furans from α‐Formylaroylketene Dithioacetals.
Authors: Sasikala K. A. , Kalesh K. A. , Anabha E. R. , Pillai P. Madhavan , Asokan C. V. , Devaky K. S. 
Published: June 2011

AbstractThe reaction involves the conversion of α‐formylketene dithioacetals (I) to vinylketenes (III) and subsequent NBS‐mediated cyclization to the structurally important subunits, which can be readily converted to amino analogues of type (VI).