1360590-86-8Relevant articles and documents
Benzylidene succinimides as 3C synthons for the asymmetric tandem Mannich reaction/transamidation of cyclic trifluoromethyl ketimines to obtain F3C-containing polycyclic dihydroquinazolinones
Zhang, Xia-Yan,Dou, Pei-Hao,Lu, Wen-Ya,You, Yong,Zhao, Jian-Qiang,Wang, Zhen-Hua,Yuan, Wei-Cheng
, p. 2927 - 2930 (2021/03/23)
By taking advantage of benzylidene succinimides as a new class of 3C synthons, a highly diastereo- and enantioselective tandem Mannich reaction/transamidation has been established by reacting them with cyclic trifluoromethylN-acyl ketimines. Using aCinchonaalkaloid-derived squaramide as the catalyst, the tandem reaction proceeded smoothly under mild conditions and afforded a range of F3C-containing chiral polycyclic dihydroquinazolinones with excellent results (up to 99% yield, all cases >20?:?1 dr, up to 99% ee).