Asymmetric Michael Addition of a Recyclable Chiral Amine: Inversion of Stereoselectivity Caused by the Difference of Ethereal Solvents

2008 ◽  
Vol 10 (13) ◽  
pp. 2653-2656 ◽  
Author(s):  
Manabu Node ◽  
Daisuke Hashimoto ◽  
Takahiro Katoh ◽  
Shunsuke Ochi ◽  
Minoru Ozeki ◽  
...  
Keyword(s):  
Michael Addition ◽  
Chiral Amine ◽  
Asymmetric Michael Addition ◽  
The Difference

Direct asymmetric Michael addition of thioether-based aryl sulfanyl-propan-2-one to nitroalkenes catalyzed by a chiral amine-thiourea bifunctional organocatalyst

Chirality ◽  
2010 ◽  
Vol 22 (7) ◽  
pp. 625-634 ◽  
Author(s):  
Xianxing Jiang ◽  
Bangzhi Zhang ◽  
Yifu Zhang ◽  
Li Lin ◽  
Wenjin Yan ◽  
...  
Keyword(s):  
Michael Addition ◽  
Chiral Amine ◽  
Asymmetric Michael Addition

Chiral Amine-Thiourea Catalyst for the Asymmetric Michael Addition

Synfacts ◽  
2006 ◽  
Vol 2006 (7) ◽  
pp. 0727-0727
Author(s):  
E. Jacobsen ◽  
H. Huang
Keyword(s):  
Michael Addition ◽  
Chiral Amine ◽  
Asymmetric Michael Addition

scholarly journals Construction of Acyclic All-Carbon Quaternary Stereocenter Based on Asymmetric Michael Addition of Chiral Amine

2021 ◽  
Vol 69 (9) ◽  
pp. 926-930
Author(s):  
Aya Niki ◽  
Minoru Ozeki ◽  
Akiko Kuse ◽  
Shiho Nakagawa ◽  
Shui Aoki ◽  
...  
Keyword(s):  
Michael Addition ◽  
Chiral Amine ◽  
Asymmetric Michael Addition ◽  
Quaternary Stereocenter

Novel and practical asymmetric synthesis of β 2,3 -amino esters using asymmetric Michael addition of chiral amine

Tetrahedron ◽  
2017 ◽  
Vol 73 (15) ◽  
pp. 2014-2021
Author(s):  
Minoru Ozeki ◽  
Honoka Egawa ◽  
Toshiki Takano ◽  
Hideki Mizutani ◽  
Narumi Yasuda ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Michael Addition ◽  
Chiral Amine ◽  
Amino Esters ◽  
Asymmetric Michael Addition

Pyrrolidinyl-Camphor Derivatives as a New Class of Organocatalyst for Direct Asymmetric Michael Addition of Aldehydes and Ketones to β-Nitroalkenes

2010 ◽  
Vol 16 (23) ◽  
pp. 7030-7038 ◽  
Author(s):  
Ying-Fang Ting ◽  
Chihliang Chang ◽  
Raju Jannapu Reddy ◽  
Dhananjay R. Magar ◽  
Kwunmin Chen
Keyword(s):  
Michael Addition ◽  
New Class ◽  
Asymmetric Michael Addition ◽  
Aldehydes And Ketones ◽  
Camphor Derivatives

ChemInform Abstract: Asymmetric Michael Addition of Ketones to Nitroolefins: Pyrrolidinyl-oxazole-carboxamides as New Efficient Organocatalysts.

ChemInform ◽  
2015 ◽  
Vol 46 (12) ◽  
pp. no-no
Author(s):  
Ahmed Kamal ◽  
Manda Sathish ◽  
Vunnam Srinivasulu ◽  
Jadala Chetna ◽  
Kunta Chandra Shekar ◽  
...  
Keyword(s):  
Michael Addition ◽  
Asymmetric Michael Addition

scholarly journals Synthesis of new pyrrolidine-based organocatalysts and study of their use in the asymmetric Michael addition of aldehydes to nitroolefins

2017 ◽  
Vol 13 ◽  
pp. 612-619 ◽  
Author(s):  
Alejandro Castán ◽  
Ramón Badorrey ◽  
José A Gálvez ◽  
María D Díaz-de-Villegas
Keyword(s):  
Michael Addition ◽  
Bulky Substituent ◽  
Asymmetric Michael Addition ◽  
Iodination Reaction ◽  
Chiral Imines ◽  
New Compounds ◽  
The Michael Addition

New pyrrolidine-based organocatalysts with a bulky substituent at C2 were synthesized from chiral imines derived from (R)-glyceraldehyde acetonide by diastereoselective allylation followed by a sequential hydrozirconation/iodination reaction. The new compounds were found to be effective organocatalysts for the Michael addition of aldehydes to nitroolefins and enantioselectivities up to 85% ee were achieved.

Asymmetric Michael Addition Induced by (R)-tert-Butanesulfinamide and Syntheses of Chiral Pyrazolidinone Derivatives

2016 ◽  
Vol 81 (21) ◽  
pp. 10506-10516 ◽  
Author(s):  
Hong-Xiu Huang ◽  
Hui-Jing Wang ◽  
Ling Tan ◽  
Shu-Qing Wang ◽  
Pei Tang ◽  
...  
Keyword(s):  
Michael Addition ◽  
Asymmetric Michael Addition
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