1361938-74-0Relevant academic research and scientific papers
Threonine-derived thioureas as bifunctional organocatalysts for enantioselective Michael addition
Zheng, Zhi,Lin, Jian,Sun, Yang,Zhang, Suoqin
, (2019/11/26)
A series of threonine-derived thioureas were developed through the facile modification of L-threonine chiral scaffold. The enantioselective efficiency were evaluated in the catalytic asymmetric Michael addition of 2-hydroxy-1,4-naphthoquinone to nitroalke
Enantioselective Friedel-Crafts reactions between phenols and N-tosylaldimines catalyzed by a leucine-derived bifunctional catalyst
Li, Guo-Xing,Qu, Jin
, p. 5518 - 5520 (2012/07/01)
Enantioselective Friedel-Crafts reactions between phenols and N-tosylaldimines were developed using a bifunctional catalyst readily prepared from l-leucine. The chiral benzylic amine products were obtained in high yields (up to 96% yield) and good to high enantiomeric excesses (up to 95% ee).
From the Feist-Bénary reaction to organocatalytic domino Michael-alkylation reactions: Asymmetric synthesis of 3(2H)-furanones
Dou, Xiaowei,Han, Xiaoyu,Lu, Yixin
supporting information; experimental part, p. 85 - 89 (2012/02/04)
It all adds up! A modified Feist-Bénary reaction employing a domino Michael-alkylation sequence was designed for the enantioselective synthesis of 3(2H)-furanones. L-Threonine-derived tertiary amine/thiourea catalysts were prepared for the first time; such catalysts promoted the designed domino Michael-alkylation reactions in a highly enantioselective manner (see scheme). Copyright
