期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 130, 期 29, 页码 9246-+出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja8041542
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资金
- NIGMS NIH HHS [R01 GM068433-05, R01 GM068433] Funding Source: Medline
- PHS HHS [R01 GMO74639-01] Funding Source: Medline
A highly reactive and robust chiral Bronsted acid catalyst, chiral N-triflyl thiophosphoramide, was developed, The first metal-free Bronsted acid catalyzed enantioselective protonation reaction of silyl enol ethers was demonstrated using this chiral Bronsted acid catalyst. The catalyst loading could be reduced to 0.05 mol % without any deleterious effect on the enantioselectivity.
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