Highly Efficient Asymmetric Mannich Reaction of Dialkyl α-Diazomethylphosphonates with N-Carbamoyl Imines Catalyzed by Chiral Brønsted Acids

2012 ◽  
Vol 14 (8) ◽  
pp. 2126-2129 ◽  
Author(s):  
Hui Zhang ◽  
Xiaojing Wen ◽  
Lihua Gan ◽  
Yungui Peng
Keyword(s):  
Mannich Reaction ◽  
Bronsted Acids ◽  
Highly Efficient ◽  
Chiral Brønsted Acids

Highly Efficient AsymmetricTrans-Selective Aziridination of Diazoacetamides andN-Boc-imines Catalyzed by Chiral Brønsted Acids

2009 ◽  
Vol 11 (14) ◽  
pp. 3036-3039 ◽  
Author(s):  
Xiaofei Zeng ◽  
Xin Zeng ◽  
Zhenjiang Xu ◽  
Min Lu ◽  
Guofu Zhong
Keyword(s):  
Bronsted Acids ◽  
Highly Efficient ◽  
Chiral Brønsted Acids

Asymmetric acyl-Mannich reaction of isoquinolines with α-(diazomethyl)phosphonate and diazoacetate catalyzed by chiral Brønsted acids

2020 ◽  
Vol 56 (76) ◽  
pp. 11235-11238 ◽  
Author(s):  
Wei Wu ◽  
Yan Wang ◽  
Jing Guo ◽  
Liu Cai ◽  
Yuan Chen ◽  
...  
Keyword(s):  
Mannich Reaction ◽  
Bronsted Acids ◽  
Chiral Brønsted Acids ◽  
Isoquinoline Derivatives

α-Diazo-β-isoquinoline derivatives were obtained in excellent yields and enantioselectivities by asymmetric acyl-Mannich reaction of (diazomethyl)phosphonate or diazoacetate with isoquinolines.

Enantioselective oxysulfenylation and oxyselenenylation of olefins catalyzed by chiral Brønsted acids

Tetrahedron ◽  
2012 ◽  
Vol 68 (12) ◽  
pp. 2728-2735 ◽  
Author(s):  
Huan Guan ◽  
Haining Wang ◽  
Deshun Huang ◽  
Yian Shi
Keyword(s):  
Bronsted Acids ◽  
Chiral Brønsted Acids

Chiral Brønsted Acids and Their Calcium Salts in Catalytic Asymmetric Mannich Reactions of Cyclic 1,3-Diketones

Synlett ◽  
2011 ◽  
Vol 2011 (03) ◽  
pp. 323-326 ◽  
Author(s):  
Magnus Rueping ◽  
Teerawut Bootwicha ◽  
Erli Sugiono
Keyword(s):  
Bronsted Acids ◽  
Mannich Reactions ◽  
Calcium Salts ◽  
Catalytic Asymmetric ◽  
Chiral Brønsted Acids

An asymmetric acetate-Mannich reaction of chiral isatin derived ketimines and its applications

2017 ◽  
Vol 15 (43) ◽  
pp. 9217-9225 ◽  
Author(s):  
Saumen Hajra ◽  
Suhas Shivajirao Bhosale ◽  
Atanu Hazra
Keyword(s):  
Amino Acid ◽  
Mannich Reaction ◽  
Direct Synthesis ◽  
Highly Efficient ◽  
Excellent Selectivity

A highly efficient TMSOTf-mediated asymmetric acetate-Mannich reaction of chiral isatin derived ketimines and S-phenyl thioacetate was developed to afford the direct synthesis of indole-based β3,3-amino acid thioester with excellent selectivity (dr > 98 : 2). Syntheses of (+)-AG-041R and 3-aminopyrroloindoline have been accomplished utilizing the method.

Asymmetric protonation of lithium enolates of α-amino acid derivatives with α-amino acid-based chiral Brønsted acids

2003 ◽  
pp. 566 ◽  
Author(s):  
Kentaro Futatsugi ◽  
Akira Yanagisawa ◽  
Hisashi Yamamoto
Keyword(s):  
Amino Acid ◽  
Amino Acid Derivatives ◽  
Bronsted Acids ◽  
Lithium Enolates ◽  
Chiral Brønsted Acids

ChemInform Abstract: Highly Efficient Asymmetric Mannich Reaction of Dialkyl α-Diazomethylphosphonates with N-Carbamoyl Imines Catalyzed by Chiral Broensted Acids.

ChemInform ◽  
2012 ◽  
Vol 43 (34) ◽  
pp. no-no
Author(s):  
Hui Zhang ◽  
Xiaojing Wen ◽  
Lihua Gan ◽  
Yungui Peng
Keyword(s):  
Mannich Reaction ◽  
Highly Efficient

ChemInform Abstract: Yb(OiPr)3, a Highly Efficient Catalyst for the Nitro-Mannich Reaction.

ChemInform ◽  
2010 ◽  
Vol 32 (37) ◽  
pp. no-no
Author(s):  
Changtao Qian ◽  
Feifeng Gao ◽  
Ruifang Chen
Keyword(s):  
Mannich Reaction ◽  
Efficient Catalyst ◽  
Highly Efficient
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