Journal
ORGANIC LETTERS
Volume 12, Issue 22, Pages 5104-5107Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol102189c
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- Kakenhi [21390030, 22106515]
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The first catalytic enantioselective trifluoromethylation of alkynyl ketones 1 with (trifluoromethyl)trimethylsilane is disclosed by an operationally simple procedure, based on the combination of ammonium bromide of bis-cinchona alkaloids with Me4NF to afford trifluoromethyl-substituted tertiary propargyl alcohols (up to 96% ee), which are the important chiral building blocks for pharmaceuticals. Biologically attractive aryl heteroaryl trifluoromethyl carbinols were also synthesized.
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