An economic and practical transformation from secondary alkyl-substituted propargyl acetates to a variety of nucleophilic substitution products was described. This reaction was catalyzed by inexpensive InCl3. High yields and excellent chemoselectivity were obtained. The five-, six-, and seven-membered propargyl cycloethers were also successfully constructed by this protocol.
Construction of 1,5-Enynes by Stereospecific Pd-Catalyzed Allyl–Propargyl Cross-Couplings
作者:Michael J. Ardolino、James P. Morken
DOI:10.1021/ja302329f
日期:2012.5.30
The palladium-catalyzed cross-coupling of chiral propargyl acetates and allyl boronates delivers chiral 1,5-enynes with excellent levels of chirality transfer and can be applied across a broad range of substrates.
MACDONALD T. L.; REAGAN D. R.; BRINKMEYER R. S., J. ORG. CHEM., 1980, 45, NO 23, 4740-4747
作者:MACDONALD T. L.、 REAGAN D. R.、 BRINKMEYER R. S.