Construction of CF3‐containing oxepino[2,3‐c]pyrazole motif via sulfur ylide mediated annulation or Me2S involved one‐pot reaction

2021 ◽  
Author(s):  
Kaichuan Yang ◽  
Zhi Li ◽  
Yiqun Sheng ◽  
Junfeng Deng ◽  
Yanxia Song ◽  
...  
Keyword(s):  
One Pot ◽  
Sulfur Ylide

A highly enantioselective one-pot sulfur ylide epoxidation reaction

2002 ◽  
Vol 43 (31) ◽  
pp. 5427-5430 ◽  
Author(s):  
Caroline L. Winn ◽  
Benjamin R. Bellenie ◽  
Jonathan M. Goodman
Keyword(s):  
One Pot ◽  
Epoxidation Reaction ◽  
Sulfur Ylide

Sulfur Ylide Initiated [4 + 1]/[4 + 2] Annulation Reactions: A One-Pot Approach to Dibenzofuran Acrylate Derivatives

2019 ◽  
Vol 21 (16) ◽  
pp. 6370-6373 ◽  
Author(s):  
Jiaan Shao ◽  
Wenteng Chen ◽  
Zhimin Ying ◽  
Shuangrong Liu ◽  
Feng Luo ◽  
...  
Keyword(s):  
One Pot ◽  
Sulfur Ylide

A rapid, microwave-assisted, one-pot cyclopropanation reaction to synthesize (4-ferrocenyl)benzoylcyclopropane in the solid state

2005 ◽  
Vol 83 (12) ◽  
pp. 2140-2143 ◽  
Author(s):  
Juxing Yin ◽  
Xiaolong Li ◽  
Xiaoli Wu ◽  
Baohua Chen ◽  
Zenglu Liu ◽  
...  
Keyword(s):  
Reaction Time ◽  
Solid State ◽  
Environmental Pollution ◽  
Intermediate Product ◽  
One Pot ◽  
Microwave Assisted ◽  
Sulfur Ylide

Some new (4-ferrocenyl)benzoylcyclopropanes were prepared rapidly via a microwave-assisted, one-pot cyclopropanation reaction in the solid state, directly using 4-ferrocenylacetophenone, aldehyde, and sulfur ylide as the starting materials. The main advantages of this procedure are convenient operation, shorter reaction time, lower environmental pollution, and no need to isolate the intermediate product (chalcone) in a separate step.Key words: 4-ferrocenylacetophenone, sulfur ylide, microwave-assisted, one-pot, solid state.

Formal [4+2] annulation of enaminones and cyanomethyl sulfur ylide: one-pot access to polysubstituted pyridin-2(1H)-ones

2014 ◽  
Vol 50 (97) ◽  
pp. 15378-15380 ◽  
Author(s):  
Qian Zhang ◽  
Xu Liu ◽  
Xiaoqing Xin ◽  
Rui Zhang ◽  
Yongjiu Liang ◽  
...  
Keyword(s):  
One Pot ◽  
One Pot Synthesis ◽  
Nucleophilic Vinylic Substitution ◽  
Vinylic Substitution ◽  
Sulfur Ylide ◽  
Nucleophilic Cyclization

One-pot synthesis of polysubstituted pyridin-2(1H)-ones by formal [4+2] annulation of enaminones and cyanomethyl sulfur ylide is described involving sequential nucleophilic vinylic substitution, intramolecular nucleophilic cyclization and dealkylation reactions.

ChemInform Abstract: A Highly Enantioselective One-Pot Sulfur Ylide Epoxidation Reaction.

ChemInform ◽  
2010 ◽  
Vol 33 (42) ◽  
pp. no-no
Author(s):  
Caroline L. Winn ◽  
Benjamin R. Bellenie ◽  
Jonathan M. Goodman
Keyword(s):  
One Pot ◽  
Epoxidation Reaction ◽  
Sulfur Ylide

scholarly journals One-pot sequential synthesis of tetrasubstituted thiophenes via sulfur ylide-like intermediates

2018 ◽  
Vol 14 ◽  
pp. 243-252 ◽  
Author(s):  
Jun Ki Kim ◽  
Hwan Jung Lim ◽  
Kyung Chae Jeong ◽  
Seong Jun Park
Keyword(s):  
Methoxy Group ◽  
Meldrum's Acid ◽  
Structural Effects ◽  
Meldrum’S Acid ◽  
Nmr Studies ◽  
One Pot ◽  
H Nmr ◽  
Novel Approach ◽  
Sulfur Ylide ◽  
Practical Synthesis

Herein, we describe a novel approach for the practical synthesis of tetrasubstituted thiophenes 8. The developed method was particularly used for the facile preparation of thienyl heterocycles 8. The mechanism for this reaction is based on the formation of a sulfur ylide-like intermediate. It was clearly suggested by (i) the intramolecular cyclization of ketene N,S-acetals 7 to the corresponding thiophenes 8, (ii) 1H NMR studies of Meldrum’s acid-substituted aminothioacetals 9, and (iii) substitution studies of the methoxy group on Meldrum’s acid containing N,S-acetals 9b. Notably, in terms of structural effects on the reactivity and stability of sulfur ylide-like intermediates, 2-pyridyl substituted compound 7a exhibited superior properties over those of others.

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