scholarly journals Asymmetric Synthesis of Isochromanone Derivatives via Trapping Carboxylic Oxonium Ylides and Aldol Cascade

2022 ◽  
Author(s):  
Jiawen Lang ◽  
Siyuan Wang ◽  
Changli He ◽  
Xiaohua Liu ◽  
Xiaoming Feng
Keyword(s):  
Metal Complexes ◽  
Asymmetric Synthesis ◽  
Cyclization Reaction ◽  
Aldol Cyclization ◽  
Oxonium Ylides

An efficient asymmetric synthesis of isochromanone derivatives was realized through Z-selective-1,3-OH insertion/aldol cyclization reaction involving acyclic carboxylic oxonium ylides. The combination of achiral dirhodium salts and chiral N,N’-dioxide-metal complexes, along...

ChemInform Abstract: Chiral Salen-Metal Complexes as Novel Catalysts for the Asymmetric Synthesis of α-Amino Acids under Phase Transfer Catalysis Conditions.

ChemInform ◽  
2010 ◽  
Vol 32 (30) ◽  
pp. no-no
Author(s):  
Yuri N. Belokon ◽  
Michael North ◽  
Tatiana D. Churkina ◽  
Nikolai S. Ikonnikov ◽  
Victor I. Maleev
Keyword(s):  
Amino Acids ◽  
Metal Complexes ◽  
Asymmetric Synthesis ◽  
Phase Transfer Catalysis ◽  
Phase Transfer

One-pot asymmetric synthesis of a hexahydrophenanthridine scaffold containing five stereocenters via an organocatalytic quadruple-cascade reaction

2021 ◽  
Author(s):  
Xiao-Long Zhang ◽  
Kai-Xiang Feng ◽  
Jian-Liang Hu ◽  
Qiao-Yu Shen ◽  
Wang-Sheng Huang ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Cascade Reaction ◽  
One Pot ◽  
Unsaturated Aldehydes ◽  
Aldol Cyclization

An organocatalytic enantioselective aza-Michael-Michael-Michael/aldol cyclization quadruple-cascade reaction of 2-amino-β-nitrostyrenes and α,β-unsaturated aldehydes has been developed for the construction of fully substituted hexahydrophenanthridine.

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