Palladium-Catalyzed Highly Diastereoselective Cyclic Carbopalladation−Carbonylative Esterification Tandem Reaction of Iododienes and Iodoarylalkenes
作者:Christophe Copéret、Ei-ichi Negishi
DOI:10.1021/ol9900663
日期:1999.7.1
[GRAPHICS]Pd-catalyzed reaction of iododienes and iodoarylalkenes represented by 1, 8, and 10 under 1 atm of CO and a small amount of O-2 in the presence of a base, e.g., NEt3 as well as MeOH and H2O in DMF can undergo a highly diastereoselective cyclic carbopalladation-carbonylative esterification tandem process (Type II C-Pd process) to give in high yields the corresponding ester-containing cyclization products, e.g., 2, 9, and 11, in as high as 98% diastereoselectivity.