bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Quinine Thiourea‐Catalyzed Asymmetric Strecker Reaction: An Approach for the Synthesis of 3‐Aminooxindoles
Authors: Wang Dong , Liang Jinyan , Feng Jingchao , Wang Kairong , Sun Quantao , Zhao Long , Li Dan , Yan Wenjin , Wang Rui 
Published: January 2013

AbstractAn organocatalytic enantioselective Strecker reaction for the synthesis of 3‐amino‐3‐cyanooxindoles has been developed. Employing a quinine‐derived thiourea catalyst, the nucleophilic addition of trimethylsilyl cyanide to N‐Boc‐ketimines affords 3‐amino‐3‐canooxindoles in good to excellent yields (78–98%) and very good enantioselectivities (up to 94%). Furthermore, to the best of our knowledge, this method also represents the first enantioselective organocatalyzed Strecker reaction with N‐Boc‐ketimines as electrophiles.
Domino Hydroarylation–Cyclization Reaction: One‐Pot Synthesis of Indane‐Fused 3,4‐Dihydrocoumarins
Authors: Joo Jin Hyuck , Youn So Won 
Published: January 2013

AbstractA tin(II) triflate‐catalyzed domino hydroarylation–cyclization reaction has been developed to access a wide‐variety of methyleneindane‐fused 3,4‐hydrocoumarins. A judiciously selected bi‐functional Lewis acidic catalyst has been successfully applied to promote two ring‐closing events as a single‐pot operation.
Supramolecular Encapsulated Rhodium Catalysts for Branched Selective Hydroformylation of Alkenes at High Temperature
Authors: Besset Tatiana , Norman David W. , Reek Joost N. H. 
Published: January 2013

AbstractThis study reveals that, in contrast to expectations, supramolecular encapsulated rhodium catalysts can be used at industrially relevant temperatures (75–80 °C), providing highly active catalysts. The unprecedented regioselectivity for the branched aldehydes can be retained if high carbon monoxide (CO) concentrations are used.
Enantio‐ and Diastereoselective Vinylogous Mukaiyama Aldol Reactions of α‐Keto Phosphonates with 2‐(Trimethylsilyloxy)‐ furan Catalyzed by Bis(oxazoline)‐Copper Complexes
Authors: Hou Gang , Yu Jipan , Yu Chengbin , Wu Guiping , Miao Zhiwei 
Published: January 2013

AbstractThe asymmetric vinylogous Mukaiyama aldol reaction between α‐keto phosphonate and 2‐(trimethylsilyloxy)furan was performed by using bis(oxazoline)‐copper complexes as the catalyst and 2,2,2‐trifluoroethanol as additive in dichloromethane. The present method is highly tolerable for functionalized α‐keto phosphonates and enabled us to obtain the corresponding 3‐ and 4‐substituted benzyl‐functionalized tertiary α‐hydroxy phosphonates in high yields (up to 86%) as well as high enantiostereoselectivities (up to 98% ee) and diastereoselectivities (up to 99:1, anti‐selective).
Carpal tunnel syndrome among ewe dairy farmers in Sardinia, Italy
Authors: Rosecrance John , Marras Teresa , Murgia Lelia , Tartaglia Riccardo , Baldasseroni Alberto 
Published: January 2013

AbstractBackgroundThe region of Sardinia, Italy is known internationally for the production of cheeses made from ewe's milk. Although the use of automated milking equipment is available in ewe dairy operations, traditional hand milking is still performed on many ewe farms. The purpose of this study was to evaluate the prevalence of carpal tunnel syndrome (CTS) among farmers that manually milk ewes.MethodsWorker demographics, upper limb symptoms, and electrophysiologic studies were obtained on 76 ewe farmers recruited from a random sample of 109 in northern Sardinia. Characteristic hand symptoms and electrophysiologic studies were used in the case definition of CTS.ResultsOf the 76 farmers evaluated, 42 (55.3%) fit the case definition of CTS in at least one hand. Assuming that all non‐respondents did not have CTS, the CTS prevalence ratio would have been 38.5% (42/109) among the randomized sample of ewe farmers.ConclusionsThese findings suggest that CTS is a significant occupational health issue for ewe farmers that continue the traditional methods of manual milking. The recent trend in automated ewe milking machines may help reduce the prevalence of CTS among the next generation of Italian ewe farmers. Am. J. Ind. Med. 56:889–896, 2013. © 2012 Wiley Periodicals, Inc.
PF‐8380 and Closely Related Analogs: Synthesis and Structure–Activity Relationship towards Autotaxin Inhibition and Glioma Cell Viability
Authors: St‐Cœur Patrick‐Denis , Ferguson Dean , Morin Pier Jr , Touaibia Mohamed 
Published: January 2013

AbstractA series of PF‐8380 analogs, a recently developed autotaxin inhibitor, was explored. Inhibition of autotaxin by these analogs, as well as by all PF‐8380 synthetic intermediates, shows the importance of meta‐dichlorobenzyl and benzo[d]oxazol‐2(3H)‐one fragments. However, analogs 8 and 9, bearing only the benzo[d]oxazol‐2(3H)‐one moiety, are more cytotoxic on the LN229 glioblastoma cell line than PF‐8380 and temozolomide (TMZ).
Influence of Extraframework Aluminum on the Brønsted Acidity and Catalytic Reactivity of Faujasite Zeolite
Authors: Almutairi Sami M. T. , Mezari Brahim , Filonenko Georgy A. , Magusin Pieter C. M. M. , Rigutto Marcello S. , Pidko Evgeny A. , Hensen Emiel J. M. 
Published: January 2013

AbstractA series of faujasite zeolites was modified by extraframework Al (AlEF) with the goal to investigate the influence of such species on the intrinsic Brønsted acidity and catalytic activity towards paraffin cracking. The chemical state of AlEF and zeolite acidity were investigated by 27Al MAS NMR and COads IR spectroscopy, H/D exchange reaction, and propane cracking. Strongly acidic defect‐free Y zeolites were obtained by substitution of framework Al by Si with (NH4)2SiF6. In accordance with the next‐nearest‐neighbor model, the intrinsic acidity of the protons increased with decreasing framework Al density. This increased acidity was evidenced by an increased shift of the OH stretching vibration upon CO adsorption in COads IR spectroscopy and by an increased H/D exchange rate in H/D exchange reactions with perdeuterobenzene. All of the acid sites in these zeolites were of equal strength beyond a certain Si/Al ratio. The increased acidity resulted in an enhanced propane cracking activity. Modification of a model dealuminated Y zeolite by AlEF only resulted in a small fraction of cationic AlEF species, because it was difficult to control the ion exchange process. In comparison, commercial ultrastabilized Y zeolites contained less AlEF and these species were predominantly present in cationic form. The rate of propane cracking strongly correlated to the concentration of Brønsted acid sites perturbed by cationic AlEF species. The results of MQMAS 27Al NMR spectroscopy confirmed the presence of sites perturbed by AlEF and unaffected framework Al sites. Zeolites with higher intrinsic cracking activities contained a higher proportion of perturbed sites. Although COads IR and H/D exchange methods proved to be suitable methods to probe the acidity of Y zeolites free from AlEF, they were less suitable to predict the reactivity if the Brønsted acid sites were affected by cationic AlEF species.
Asymmetric Cyanoethoxy Carbonylation Reaction of Aldehydes Catalyzed by a TiIV Macrocyclic Complex: An Efficient Synthetic Protocol for β‐Blocker and α1‐Adrenergic Receptor Agonists
Authors: Sadhukhan Arghya , Choudhary Manoj K. , Khan Noor‐ul H. , Kureshy Rukhsana I. , Abdi Sayed H. R. , Bajaj Hari C. 
Published: January 2013

AbstractChiral macrocyclic TiIV–salen complexes were used as efficient catalysts in the asymmetric cyanoethoxy carbonylation of aldehydes. The TiIV catalysts demonstrated excellent performance (product yields and ee values up to 99 %) with ethyl cyanoformate as the cyanide source and a catalyst loading of 0.5 mol %, which is the lowest known. The macrocyclic TiIV–salen complex retained its performance at multigram level and was conveniently recycled for a number of times. The product obtained was straightforwardly transformed to the pharmaceutically important chiral drugs (R)‐proethalol (β‐blocker) and (R)‐phenylephrine (α1‐adrenergic receptor agonist) in good yields. To understand the mechanism of the catalytic reaction, a kinetic investigation was conducted with various concentrations of the catalyst, ethyl cyanoformate and benzaldehyde as the representative substrate. The reaction of benzaldehyde was first order with respect to the concentration of the catalyst and the ethyl cyanoformate but did not depend on the initial concentration of the substrate. A possible mechanism of the cyano‐ethoxy carbonylation reaction was proposed.
Optimization of Catalyst Loading for Porous Copper Fiber Sintered Felts Used in Methanol Steam Reforming Microreactors
Authors: Zhou W. , Tang Y. , Wang Q. , Hui K. S. , Hui K. N. , Wan Z. , Song R. 
Published: January 2013

AbstractA novel porous copper fiber sintered felt (PCFSF) has been used as catalyst support to construct a methanol steam reforming microreactor for hydrogen production. The Cu/Zn/Al/Zr catalyst was loaded on the PCFSF by means of a two‐layer impregnation method. The ultrasonic water bath vibration method was employed to investigate the effect of porosity, catalyst loading, and sintering temperature on the loading performance of PCFSFs. The effective catalyst loading, being limited by porosity and pore size, was > 92 % in the lower porosity range of 70–80 %, but significantly reduced in higher porosity ranges >80 %.
Regeneration of Activated Carbon Loaded with Cyclohexane Using Supercritical Carbon Dioxide: Experimental Results and Modeling
Authors: Heidari A. , Lotfollahi M. N. , Baseri H. 
Published: January 2013

AbstractRegeneration of granular activated carbon loaded with cyclohexane by supercritical carbon dioxide was investigated at varying temperatures and pressures. Cyclohexane concentration‐time profiles were measured by means of a supercritical extraction apparatus coupled with an online GC analyzer. The maximum yield of regeneration was 68 % at 55 °C and 140 bar. A mathematical model was proposed which agreed well with the experimental data. Both the Toth and the Langmuir‐Freundlich isotherms were used as adsorption isotherms under equilibrium condition. The mathematical model for activated carbon regeneration was able to adjust the experimental data with relative absolute average deviations of about 4 % and 3.25 %, respectively, for the Toth and the Langmuir‐Freundlich isotherms.
ansa‐Zirconocenes with Bridge‐tethered Donors: Synthesis and Application as Catalysts in Solution Polymerization of Ethylene
Authors: Rau A. , Wieczorek T. , Dornik H. , Luft G. 
Published: January 2013

AbstractFour new donor‐functionalized ansa‐zirconocenes have been synthesized from the XMeSiCp2ZrCl2 and X2SiCp2ZrCl2 general formula (where X = (CH2)3OEt, C8H4SCH2OMe, and CH2(2‐MeO‐3‐Me‐C6H3)). In each of these metallocenes, alkoxy groups are linked by a three‐carbon chain to the silicon atom. To study the influence of the functionalized side chains, these metallocenes were activated with methylalumoxane (MAO) and utilized in solution polymerization of ethylene. The molecular weight distributions of the polymers formed show a bimodal shape which can be described as a superposition of two Schultz‐Flory distributions, synonymous to at least two different catalytic species. Unimodal polymers with Mw/Mn = 2 were formed with the Me2SiCp2ZrCl2/MAO catalyst system, indicating that the unusual bimodal molecular weight distributions are due to the functionalized side chains tethered to the Si‐bridge.
Bioresponsive Hyaluronic Acid‐Capped Mesoporous Silica Nanoparticles for Targeted Drug Delivery
Authors: Chen Zhaowei , Li Zhenhua , Lin Youhui , Yin Meili , Ren Jinsong , Qu Xiaogang 
Published: January 2013

AbstractIn this paper, we present a facile strategy to synthesize hyaluronic acid (HA) conjugated mesoporous silica nanoparticles (MSP) for targeted enzyme responsive drug delivery, in which the anchored HA polysaccharides not only act as capping agents but also as targeting ligands without the need of additional modification. The nanoconjugates possess many attractive features including chemical simplicity, high colloidal stability, good biocompatibility, cell‐targeting ability, and precise cargo release, making them promising agents for biomedical applications. As a proof‐of‐concept demonstration, the nanoconjugates are shown to release cargoes from the interior pores of MSPs upon HA degradation in response to hyaluronidase‐1 (Hyal‐1). Moreover, after receptor‐mediated endocytosis into cancer cells, the anchored HA was degraded into small fragments, facilitating the release of drugs to kill the cancer cells. Overall, we envision that this system might open the door to a new generation of carrier system for site‐selective, controlled‐release delivery of anticancer drugs.
Polyoxometalates as a Novel Class of Artificial Proteases: Selective Hydrolysis of Lysozyme under Physiological pH and Temperature Promoted by a Cerium(IV) Keggin‐Type Polyoxometalate
Authors: Stroobants Karen , Moelants Eva , Ly Hong Giang T. , Proost Paul , Bartik Kristin , Parac‐Vogt Tatjana N. 
Published: January 2013

AbstractHen‐egg‐white lysozyme (HEWL) is specifically cleaved at the Trp28–Val29 and Asn44–Arg45 peptide bonds in the presence of a Keggin‐type [Ce(α‐PW11O39)2]10− polyoxometalate (POM; 1) at pH 7.4 and 37 °C. The reactivity of 1 towards a range of dipeptides was also examined and the calculated reaction rates were comparable to those observed for the hydrolysis of HEWL. Experiments with α‐lactalbumin (α‐LA), a protein that is structurally highly homologous to HEWL but has a different surface potential, showed no evidence of hydrolysis, which indicates the importance of electrostatic interactions between 1 and the protein surface for the hydrolytic reaction to occur. A combination of spectroscopic techniques was used to reveal the molecular interactions between HEWL and 1 that lead to hydrolysis. NMR spectroscopy titration experiments showed that on protein addition the intensity of the 31P NMR signal of 1 gradually decreased due to the formation of a large protein/polyoxometalate complex and completely disappeared when the HEWL/1 ratio reached 1:2. Circular dichroism (CD) measurements of HEWL indicate that addition of 1 results in a clear decrease in the signal at λ=208 nm, which is attributed to changes in the α‐helical content of the protein. 15N–1H heteronuclear single quantum coherence (HSQC) NMR measurements of HEWL in the presence of 1 reveal that the interaction is mainly observed for residues that are located in close proximity to the first site in the α‐helical part of the structure (Trp28–Val29). The less pronounced NMR spectroscopic shifts around the second cleavage site (Asn44–Arg45), which is found in the β‐strand region of the protein, might be caused by weaker metal‐directed binding, compared with strong POM‐directed binding at the first site.
ChemInform Abstract: A New Mixed Halide, Cs2HgI2Cl2: Molecular Engineering for a New Nonlinear Optical Material in the Infrared Region.
Authors: Qin Jingui , et al. et al. 
Published: January 2013

AbstractThe new title compound is synthesized from stoichiometric amounts of CsCl and HgI2 dissolved in acetone (45 °C, 24 h) and characterized by single crystal XRD, IR, Raman, UV/VIS diffuse reflectance spectroscopy, and nonlinear optical property measurements.
ChemInform Abstract: Hydrophilic, Upconverting, Multicolor, Lanthanide‐Doped NaGdF4 Nanocrystals as Potential Multifunctional Bioprobes.
Authors: Li Feifei , Li Chunguang , Liu Xiaomin , Chen Ying , Bai Tianyu , Wang Long , Shi Zhan , Feng Shouhua 
Published: January 2013

AbstractMonodisperse water‐soluble NaGdF4:Yb,Er upconverting nanocrystals are prepared by a fast, facile, and environmentally friendly microwave‐assisted route from a mixture of GdCl3, YbCl3, ErCl3, NH4F, and polyethylenimine dissolved in ethylene glycol (microwave irradiation, 200 °C, 60 min).
ChemInform Abstract: Chiral Diphosphane‐ and NHC‐Containing Ruthenium Catalysts for the Catalytic Asymmetric Arylation of Aldimines with Organoboron Reagents.
Authors: Marques Carolina S. , Burke Anthony J. 
Published: January 2013

AbstractThe inversion of enantioselectivity observed in some cases, e.g. (S)‐VIa vs.
ChemInform Abstract: Laccase‐Catalyzed Oxidative Phenolic Coupling of Vanillidene Derivatives.
Authors: Constantin Mihaela‐Anca , Conrad Juergen , Beifuss Uwe 
Published: January 2013

AbstractThe oxidative dimerization of di‐ and trisubstituted vanillidene derivatives with aerial oxygen delivers either the dihydrobenzofurans (II) as sole products in diastereomerically pure form, biphenyls (IV) and (VI), which can be considered as 5,5′‐coupling products, or dilactone (VIII) as main product.
ChemInform Abstract: A Weinreb Amide Approach to the Synthesis of Trifluoromethylketones.
Authors: Rudzinski DiAndra M. , Kelly Christopher B. , Leadbeater Nicholas E. 
Published: January 2013

AbstractThe first case of the Ruppert‐Prakash reagent (II) reacting in a constructive manner with an amide functionality to afford title compounds (III), without formation of over‐trifluoromethylated products is described.
ChemInform Abstract: Reductive Detriflylation of N‐Triflylamides with Red‐Al.
Authors: Miyamoto Kazunori , Hoque Md. Mahbubul , Ogasa Sayaka 
Published: January 2013

AbstractIt is found that Red‐Al is an efficient deprotecting agent for N,N‐dialkyltriflylamides and disubstituted N‐triflylaziridines.
ChemInform Abstract: (S)‐2,2,6,6‐Tetramethyl‐N‐(pyrrolidin‐2‐ylmethyl)piperidin‐4‐amine as an Efficient Organocatalyst for Asymmetric Michael Addition
Authors: Cao Xiaohui , Wang Ge , Wei Yingying , Chen Ligong 
Published: January 2013

Abstractof cyclohexanone to aryl‐substituted nitroolefines (II)
ChemInform Abstract: Revisit: Eaton′s Reagent Catalyzed Synthesis of Mono‐ and Bis‐Chalcone Derivatives.
Authors: Pawar Rajendra P. , et al. et al. 
Published: January 2013

AbstractEaton′s reagent efficiently catalyzed the Claisen—Schmidt condensation reaction of aryl aldehydes with aromatic as well as cyclic ketones under solvent‐free microwave irradiation conditions.
ChemInform Abstract: Cu‐Catalyzed Reaction of 1,2‐Dihalobenzenes with 1,3‐Cyclohexanediones for the Synthesis of 3,4‐Dihydrodibenzo[b,d]furan‐1(2H)‐ones.
Authors: Aljaar Nayyef , Malakar Chandi C. , Conrad Juergen , Strobel Sabine , Schleid Thomas , Beifuss Uwe 
Published: January 2013

AbstractA new, straightforward, and regioselective method is reported.
ChemInform Abstract: Convenient and Simple Synthesis of 2‐Aminothiazoles by the Reaction of α‐Halo Ketone Carbonyls with Ammonium Thiocyanate in the Presence of N‐Methylimidazole.
Authors: Meshram H. M. , Thakur Pramod B. , Babu B. Madhu , Bangade Vikas M. 
Published: January 2013

AbstractThe simple and mild procedure affords a broad spectrum of functionalized target compounds as biologically interesting subunits.
ChemInform Abstract: Asymmetric Construction of Spirocyclohexanonerhodanines Catalyzed by Simple Diamine Derived from Chiral tert‐Leucine.
Authors: Wu Wenbin , Huang Huicai , Yuan Xiaoqian , Zhu Kailong , Ye Jinxing 
Published: January 2013

AbstractRhodamine derivatives (I) are applied in cascade reactions for the highly stereoselective construction of title compounds (III) and (V) bearing multiple consecutive chiral centers catalyzed by a simple diamine.
ChemInform Abstract: Mesoporous AlPO4: A Highly Efficient Heterogeneous Catalyst for Synthesis of 5‐Substituted 1H‐Tetrazoles from Nitriles and Sodium Azide via [3 + 2] Cycloaddition.
Authors: Ai Man , Lang Leiming , Li Baojun , Xu Zheng 
Published: January 2013

AbstractMesoporous aluminum phosphate is described as possible candidate to substitute metal salts or other heterogeneous catalysts even in industrial applications.
ChemInform Abstract: Nickel Nanoparticles: A Highly Efficient Catalyst for One Pot Synthesis of Tetraketones and Biscoumarins.
Authors: Khurana Jitender M. , Vij Kanika 
Published: January 2013

AbstractPolyvinyl pyrrolidone stabilized nickel nanoparticles are successfully used as catalyst for the syntheses of tetraketones and biscoumarins via Knoevenagel condensation followed by rapid Michael addition.
ChemInform Abstract: An Ecofriendly Approach to the Synthesis of 2‐Imino‐ and 2‐Oxo‐3‐phenylsulfonyl‐2H‐chromenes.
Authors: Dias Tatiana A. , Proenca M. Fernanda 
Published: January 2013

AbstractKnoevenagel condensation of salicylaldehydes with (phenylsulfonyl)acetonitrile in aqueous solution gives 2‐imino‐chromenes whose hydrolysis allows the synthesis of the corresponding 2‐oxo derivatives.
ChemInform Abstract: Silica (NPs) Supported Fe(III) as a Reusable Heterogeneous Catalyst for the One‐Pot Synthesis of 1,4‐Dihydropyridines under Mild Conditions.
Authors: Safaei‐Ghomi Javad , Ziarati Abolfazl , Zahedi Safura 
Published: January 2013

AbstractThe title compounds (IV) are obtained by condensation of various aldehydes with ethyl acetoacetate and ammonium acetate.
ChemInform Abstract: One‐Pot Three‐Component Synthesis of Highly Substituted Piperidines Using 1‐Methyl‐2‐oxopyrrolidinium Hydrogen Sulfate.
Authors: Sajadikhah Seyed Sajad , Hazeri Nourallah , Maghsoodlou Malek Taher , Habibi‐Khorassani Sayyed Mostafa , Beigbabaei Adel , Lashkari Mojtaba 
Published: January 2013

AbstractHighly substituted piperidines (IV) (23 examples) are obtained in a one‐pot three‐component synthesis from aromatic aldehydes, anilines, and β‐ketoesters using the ionic liquid 1‐methyl‐2‐oxopyrrolidinium hydrogensulfate as catalyst.
ChemInform Abstract: An Environmentally Benign One Pot Synthesis of Substituted Quinolines Catalyzed by Fluoroboric Acid Based Ionic Liquid.
Authors: Rajendran A. , Karthikeyan C. , Rajathi K. , Ragupathy D. 
Published: January 2013

AbstractThe title compounds are obtained in a simple, efficient, and facile tandem protocol by reaction of substituted anilines (I) with β‐ketoester (II).
ChemInform Abstract: Exploration of Copper‐ and Amine‐Free Sonogashira Cross‐Coupling Reactions of 2‐Halo‐3‐alkyl Imidazo[4,5‐b]pyridines Using Tetrabutyl Ammonium Acetate as an Activator under Microwave‐Enhanced Conditions.
Authors: Sajith Ayyiliath M. , Muralidharan A. 
Published: January 2013

AbstractHalides (Ia)‐(Ic) are tested in the process and the iodide (Ia) is found to be the most efficient one to prepare purine analogues which are of pharmaceutical interest.
ChemInform Abstract: Low‐Temperature Synthesis of Pyrano‐ and Furo[3,2‐c]quinolines via Povarov Reaction Using a Highly Ordered 3D Nanoporous Catalyst with a High Acidity.
Authors: Vinu A. , et al. et al. 
Published: January 2013

AbstractImines, generated in situ from arylamines and cyclic enol ethers (II), undergo [4 + 2]cycloaddition with a second ether molecule in the presence of a nanoporous aluminosilicate as the catalyst to afford the title compounds in high diastereoselectivity.
ChemInform Abstract: Iron‐Catalyzed C‐3 Functionalization of Indolizines via C—H Bond Cleavage.
Authors: Xu Shao‐hong 
Published: January 2013

AbstractDi‐ or triheteroarylmethanes (III) are obtained in electrophilic substitution reactions of indolizines (I) with various aromatic or aliphatic aldehydes (II) under mild reaction conditions.
ChemInform Abstract: Indium Triflate Catalyzed One‐Pot Multicomponent Synthesis of Spiro‐Hexahydropyrimidines Explained by Multiple Covalent Bond Formation.
Authors: Dandia Anshu , Jain Anuj K. , Sharma Sonam 
Published: January 2013

AbstractThe process includes 6 molecules of reactants and 6 new covalent bonds are generated in the presence of a reusable catalyst.
ChemInform Abstract: A Greener Protocol for Accessing 2,3‐Dihydro/spiroquinazolin‐4(1H)‐ones: Natural Acid‐SDS Catalyzed Three‐Component Reaction.
Authors: Sharma Rashmi , Pandey Anand Kumar , Chauhan Prem M. S. 
Published: January 2013

AbstractThe conversion of isatoic anhydride (I) to the title heterocycles is investigated under conditions A) and B).
ChemInform Abstract: Direct Palladium‐Catalyzed C—H Arylation of BODIPY Dyes at the 3‐ and 3,5‐Positions.
Authors: Verbelen Bram , Leen Volker , Wang Lina , Boens Noel , Dehaen Wim 
Published: January 2013

AbstractDespite the use of a significant excess of aryl bromide (II) the formation of the monoarylated product (III) could not be avoided.