942066-41-3Relevant academic research and scientific papers
Formal palladium-catalyzed asymmetric hydrogenolysis of racemic N -sulfonyloxaziridines
Song, Bo,Yu, Chang-Bin,Huang, Wen-Xue,Chen, Mu-Wang,Zhou, Yong-Gui
, p. 190 - 193 (2015)
Highly enantioselective palladium-catalyzed formal hydrogenolysis of racemic N-sulfonyloxaziridines has been realized, providing a novel access to sultams with up to 99% ee. Preliminary mechanistic insights revealed that the reaction proceeded through a N-O bond cleavage, dehydration, and the sequential asymmetric hydrogenation.
Synthesis of chiral γ-sultams through intramolecular reductive amination with sulfonylcarbamate as N-source
Song, Bo,Ji, Yue,Hu, Shu-Bo,Yu, Chang-Bin,Zhou, Yong-Gui
supporting information, p. 1528 - 1530 (2017/03/23)
An efficient and enantioselective palladium-catalyzed intramolecular asymmetric reductive amination with sulfonylcarbamates as N-sources was reported, providing a facile and general access to the chiral γ-sultam derivatives with up to 97% of enantioselect
Highly enantioselective Pd-catalyzed asymmetric hydrogenation of activated imines
Wang, You-Qing,Lu, Sheng-Mei,Zhou, Yong-Gui
, p. 3729 - 3734 (2008/02/04)
(Chemical Equation Presented) Pd/bisphosphines complexes are highly effective catalysts for asymmetric hydrogenation of activated imines in trifluoroethanol. The asymmetric hydrogenation of N-diphenylphosphinyl ketimines 3 with Pd(CF3CO2)/(S)-SegPhos indicated 87-99% ee, and N-tosylimines 5 could gave 88-97% ee with Pd-(CF3CO 2)/(S)-SynPhos as a catalyst. Cyclic N-sulfonylimines 7 and 11 were hydrogenated to afford the useful chiral sultam derivatives in 79-93% ee, which are important organic synthetic intermediates and structural units of agricultural and pharmaceutical agents.
