期刊
ORGANIC LETTERS
卷 13, 期 8, 页码 2126-2129出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol200595b
关键词
-
资金
- JSPS [21750087]
- MEXT [20037005]
- Grants-in-Aid for Scientific Research [21750087, 20037005] Funding Source: KAKEN
The chiral Bronsted acid (1b or 1c) has been shown to initiate the Hosomi-Sakurai reaction of imines with excellent enantioselectivities. The combined Bronsted acid system has been developed to offer a new class of chiral Bronsted acid catalysis. The present system proceeds through regeneration of the chiral Bronsted acid by proton transfer from additional Bronsted acid to silylated chiral Bronsted acid, a newly elucidated mechanism for the role of the additional Bronsted acid.
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