1259436-58-2Relevant academic research and scientific papers
Asymmetric hydrogenation of cyclic N-sulfonylimines with phosphine-free chiral cationic Ru-MsDPEN catalysts
Chen, Fei,Li, Zhiwei,He, Yanmei,Fan, Qinghua
, p. 1529 - 1532 (2010)
Phosphine-free chiral cationic Ru/diamine complexes are effective catalysts for the asymmetric hydrogenation of a range of cyclic N-sulfonylimines, affording chiral sultam derivatives with good to excellent enantioselectivity (up to 94% ee).
Ni(II)/tBu-SMI-PHOX catalyzed enantioselective addition of arylboronic acids to cyclic N-sulfonyl aldimines
Cao, Guorui,Qiu, Zhongxuan,Sun, Rui,Teng, Dawei
, (2020/04/24)
An efficient Ni(ClO4)2·6H2O/SMI-PHOX catalyzed enantioselective addition of arylboronic acids to cyclic N-sulfonyl aldimines is envisioned to afford excellent enantioselectivities (up to 99% ee) in high yields (up to 98%). This protocol offers new opportunities for the synthesis of chiral benzosultams containing a stereogenic tertiary carbon center. The highlights of this method include mild reaction conditions, the use of cheap metal catalyst and a wide substrate scope.
