Latest Articles of European Journal of Organic Chemistry


Microwave??Assisted Synthesis of Polysubstituted 4??Quinolones from Deprotonated α??Aminonitriles : Barnikow; Hagen; Goeres; Richter; Fichtner Pharmazie, 1983 , vol. 38, # 7 p. 449 - 452 ... Copyright © 2010 WILEY-VCH Verlag GmbH & Co ... Volume: Issue: Page ... and widely employed approach is the Conrad–Limpach synthesis from anilines and β-keto esters,6 which is closely related to the Combes synthesis of quinolines from anilines and β-diket...
Highly Diastereo??and Enantioselective Aldol Reactions in Common Organic Solvents Using N??Arylprolinamides as Organocatalysts with Enhanced Acidity : Moorthy, Jarugu Narasimha; Saha, Satajit European Journal of Organic Chemistry, 2009 , # 5 p. 739 - 748 Abstract A broad set of N-arylprolinamides 1–8 with increasing NH acidity and steric crowding has been synthesized and its catalytic activity explored for enantioselective aldol reactions. In DMF containing 10 mol-% of TFA, all arylamides are found to catalyz...
α??Amino Acid Derivatives by Enantioselective Decarboxylation : European Journal of Organic Chemistry, , # 15 p. 2854 - 2862 ... European Journal of Organic Chemistry. ... had been made in the Naproxen ® system.11 This is in contradiction to a computational study recently published in this journal,30 denying ... 1 H, H3), 2.54−3.40 (m, 5 H, H2, H6, H8), 5.06−5.17 (m, 2 H, H11a, H11...
A remarkably efficient Markovnikov hydrochlorination of olefins and transformation of nitriles into imidates by use of AcCl and an alcohol : Yadav, Veejendra K.; Babu, K. Ganesh European Journal of Organic Chemistry, 2005 , # 2 p. 452 - 456 Abstract HCl generated by mixing AcCl with EtOH brings about Markovnikov hydrochlorination of olefins in excellent yields. The products are isolated in states of high purity simply by removal of the volatile components under reduced pressure. Further, nitrile...
Ionic Liquid as Catalyst and Reaction Medium–A Simple, Efficient and Green Procedure for Knoevenagel Condensation of Aliphatic and Aromatic Carbonyl … : Ranu, Brindaban C.; Jana, Ranjan European Journal of Organic Chemistry, 2006 , # 16 p. 3767 - 3770 Abstract The basic ionic liquid 1-butyl-3-methylimidazolium hydroxide,[bmIm] OH, efficiently catalyzes Knoevenagel condensation without requirement of any organic solvent. A wide range of aliphatic and aromatic aldehydes and ketones easily undergo condensatio...
Enantioselective Synthesis of (+)??(S)??Laudanosine and (–)??(S)??Xylopinine : Mujahidin, Didin; Doye, Sven European Journal of Organic Chemistry, 2005 , # 13 p. 2689 - 2693 Abstract The study presents a new pathway for the enantioselective synthesis of benzylisoquinoline alkaloids. The key steps of the synthesis of (+)-(S)-laudanosine (1) and (– )-(S)-xylopinine (2) are a Sonogashira coupling that builds up the C1–C8a bond of th...
A Phosphane??Free, Atom??Efficient Cross??Coupling Reaction of Triarylbismuths with Acyl Chlorides Catalyzed by MCM??41??Immobilized Palladium Complex : Zhao, Hong; Yin, Lin; Cai, Mingzhong European Journal of Organic Chemistry, 2013 , # 7 p. 1337 - 1345 Abstract The first phosphane-free, heterogeneous, atom-efficient cross-coupling reaction of triarylbismuths and acyl chlorides was achieved in N-methylpyrrolidone (NMP) with Bu 3 N as the base at 80 C in the presence of 1.5 mol-% MCM-41-immobilized bidentate ...
Highly Efficient Synthesis of Ureas and Carbamates from Amides by Iodosylbenzene??Induced Hofmann Rearrangement : Liu, Peng; Wang, Zhiming; Hu, Xianming European Journal of Organic Chemistry, 2012 , # 10 p. 1994 - 2000 Abstract A simple and efficient method for the synthesis of 1, 3-disubstituted ureas and carbamates from amides by using iodosylbenzene as the oxidant is described. Symmetric and asymmetric ureas and carbamates can be prepared by this procedure in up to 98% y...
An Efficient Procedure for the Synthesis of Crystalline Aryldiazonium Trifluoroacetates–Synthetic Applications : Colas, Christophe; Goeldner, Maurice European Journal of Organic Chemistry, 1999 , # 6 p. 1357 - 1366 Abstract We have developed a very mild procedure for the synthesis of crystalline aryldiazonium trifluoroacetate salts in high yields under anhydrous conditions. Over thirty mono-or polyfunctional aniline derivatives have been diazotized by this method, inclu...
Synthesis of Two Complementary Molecular Moulds : Barattin, Regis; Gourdon, Andre European Journal of Organic Chemistry, 2009 , # 7 p. 1022 - 1026 Abstract The synthesis of two complementary molecular moulds is described. These molecules comprise a polyaromatic central part and four lateral bulky tert-butylphenyl or di- tert-butylphenyl groups so that when they are deposited onto a surface, a cavity pro...

Microwave??Assisted Synthesis of Polysubstituted 4??Quinolones from Deprotonated α??Aminonitriles

: Barnikow; Hagen; Goeres; Richter; Fichtner Pharmazie, 1983 , vol. 38, # 7 p. 449 - 452

... Copyright © 2010 WILEY-VCH Verlag GmbH & Co ... Volume: Issue: Page ... and widely employed approach is the Conrad–Limpach synthesis from anilines and β-keto esters,6 which is closely related to the Combes synthesis of quinolines from anilines and β-diket...

Highly Diastereo??and Enantioselective Aldol Reactions in Common Organic Solvents Using N??Arylprolinamides as Organocatalysts with Enhanced Acidity

: Moorthy, Jarugu Narasimha; Saha, Satajit European Journal of Organic Chemistry, 2009 , # 5 p. 739 - 748

Abstract A broad set of N-arylprolinamides 1–8 with increasing NH acidity and steric crowding has been synthesized and its catalytic activity explored for enantioselective aldol reactions. In DMF containing 10 mol-% of TFA, all arylamides are found to catalyz...

α??Amino Acid Derivatives by Enantioselective Decarboxylation

: European Journal of Organic Chemistry, , # 15 p. 2854 - 2862

... European Journal of Organic Chemistry. ... had been made in the Naproxen ® system.11 This is in contradiction to a computational study recently published in this journal,30 denying ... 1 H, H3), 2.54−3.40 (m, 5 H, H2, H6, H8), 5.06−5.17 (m, 2 H, H11a, H11...

A remarkably efficient Markovnikov hydrochlorination of olefins and transformation of nitriles into imidates by use of AcCl and an alcohol

: Yadav, Veejendra K.; Babu, K. Ganesh European Journal of Organic Chemistry, 2005 , # 2 p. 452 - 456

Abstract HCl generated by mixing AcCl with EtOH brings about Markovnikov hydrochlorination of olefins in excellent yields. The products are isolated in states of high purity simply by removal of the volatile components under reduced pressure. Further, nitrile...

Ionic Liquid as Catalyst and Reaction Medium–A Simple, Efficient and Green Procedure for Knoevenagel Condensation of Aliphatic and Aromatic Carbonyl …

: Ranu, Brindaban C.; Jana, Ranjan European Journal of Organic Chemistry, 2006 , # 16 p. 3767 - 3770

Abstract The basic ionic liquid 1-butyl-3-methylimidazolium hydroxide,[bmIm] OH, efficiently catalyzes Knoevenagel condensation without requirement of any organic solvent. A wide range of aliphatic and aromatic aldehydes and ketones easily undergo condensatio...

Enantioselective Synthesis of (+)??(S)??Laudanosine and (–)??(S)??Xylopinine

: Mujahidin, Didin; Doye, Sven European Journal of Organic Chemistry, 2005 , # 13 p. 2689 - 2693

Abstract The study presents a new pathway for the enantioselective synthesis of benzylisoquinoline alkaloids. The key steps of the synthesis of (+)-(S)-laudanosine (1) and (– )-(S)-xylopinine (2) are a Sonogashira coupling that builds up the C1–C8a bond of th...

A Phosphane??Free, Atom??Efficient Cross??Coupling Reaction of Triarylbismuths with Acyl Chlorides Catalyzed by MCM??41??Immobilized Palladium Complex

: Zhao, Hong; Yin, Lin; Cai, Mingzhong European Journal of Organic Chemistry, 2013 , # 7 p. 1337 - 1345

Abstract The first phosphane-free, heterogeneous, atom-efficient cross-coupling reaction of triarylbismuths and acyl chlorides was achieved in N-methylpyrrolidone (NMP) with Bu 3 N as the base at 80 C in the presence of 1.5 mol-% MCM-41-immobilized bidentate ...

Highly Efficient Synthesis of Ureas and Carbamates from Amides by Iodosylbenzene??Induced Hofmann Rearrangement

: Liu, Peng; Wang, Zhiming; Hu, Xianming European Journal of Organic Chemistry, 2012 , # 10 p. 1994 - 2000

Abstract A simple and efficient method for the synthesis of 1, 3-disubstituted ureas and carbamates from amides by using iodosylbenzene as the oxidant is described. Symmetric and asymmetric ureas and carbamates can be prepared by this procedure in up to 98% y...

An Efficient Procedure for the Synthesis of Crystalline Aryldiazonium Trifluoroacetates–Synthetic Applications

: Colas, Christophe; Goeldner, Maurice European Journal of Organic Chemistry, 1999 , # 6 p. 1357 - 1366

Abstract We have developed a very mild procedure for the synthesis of crystalline aryldiazonium trifluoroacetate salts in high yields under anhydrous conditions. Over thirty mono-or polyfunctional aniline derivatives have been diazotized by this method, inclu...

Synthesis of Two Complementary Molecular Moulds

: Barattin, Regis; Gourdon, Andre European Journal of Organic Chemistry, 2009 , # 7 p. 1022 - 1026

Abstract The synthesis of two complementary molecular moulds is described. These molecules comprise a polyaromatic central part and four lateral bulky tert-butylphenyl or di- tert-butylphenyl groups so that when they are deposited onto a surface, a cavity pro...