1233703-80-4Relevant articles and documents
Stereoselective conjugate addition of carbonyl compounds to maleimides using a diaminomethyleneindenedione organocatalyst
Nakashima, Kosuke,Kawada, Masahiro,Hirashima, Shin-ichi,Kosugi, Ayako,Kato, Mana,Yoshida, Akihiro,Koseki, Yuji,Miura, Tsuyoshi
, p. 888 - 895 (2016/09/02)
A diaminomethyleneindenedione motif can serve as an excellent double hydrogen bonding donor. Bifunctional chiral primary amine 3 bearing a diaminomethyleneindenedione motif is an excellent organocatalyst to promote the asymmetric conjugate additions of va
Enantioselective Michael addition of ketones to maleimides catalyzed by bifunctional monosulfonyl DPEN salt
Yu, Feng,Sun, Xiaomin,Jin, Zhichao,Wen, Shigang,Liang, Xinmiao,Ye, Jinxing
supporting information; experimental part, p. 4589 - 4591 (2010/11/18)
An unprecedented enantioselective Michael addition of various ketones to maleimides catalyzed by a simple bifunctional primary amine, monosulfonyl DPEN salt, is reported and provides the desired adducts in good to excellent yields (up to 99%) with excellent enantioselectivities (up to 99%).