화학공학소재연구정보센터
Journal of the American Chemical Society, Vol.131, No.29, 9882-9882, 2009
Enantioselective Hydrogenation of N-H Imines
N-H ketoimines 3a-3v are readily prepared in high yield via organometallic addition to nitrites and isolated as corresponding bench-stable hydrochloride salts. Homogeneous asymmetric hydrogenation of unprotected N-H ketoimines 3a-3v using Ir-(S,S)-f binaphane as catalyst provides chiral amines 4a-4v in 90-95% yield with enantioselectivities up to 95% ee.