期刊
CHEMICAL COMMUNICATIONS
卷 53, 期 49, 页码 6633-6636出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cc02874a
关键词
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A new organocatalytic enantioselective Strecker reaction of pyrazolone-derived ketimine electrophiles has been developed. Using pseudo-enantiomeric squaramide catalysts the nucleophilic 1,2-addition of trimethylsilyl cyanide to the ketimines efficiently provides a direct entry to both enantiomers of pyrazolone alpha-aminonitrile derivatives at will in good yields and high enantioselectivities for a wide variety of substrates.
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