Chiral tertiary alcohols from a trans-1-arenesulfonyl-amino-2-isoborneolsulfonylaminocyclohexane-catalyzed addition of organozincs to ketones
作者:Vicente J. Forrat、Diego J. Ramón、Miguel Yus
DOI:10.1016/j.tetasy.2005.08.031
日期:2005.10
enantioselective addition of different organozinc reagents, such as alkyl, or in situ generated aryl, allyl, alkenyl and alkynyl derivatives to simple aryl ketones, was accomplished using titanium tetraisopropoxide and chiral ligands derived from 1-arenesulfonylamino-2-isoborneolsulfonylamidocyclohexane, giving the corresponding tertiary alcohols with enantioselectivities up to >99%. A simple and efficient