丙二酸环(亚)异丙酯 在
tris(dibenzylideneacetone)dipalladium(0) chloroform complex 、
potassium carbonate 、 (-)-1(R),2(R)-bis<2'-(diphenylphosphino)benzamido>-1,2-diphenylethane 作用下,
以
1,4-二氧六环 、
N,N-二甲基甲酰胺 为溶剂,
反应 36.0h,
生成 (7S,14S)-1,5,9,13-tetraoxy-3,3,11,11-tetramethyl-7-(triisopropylsilylethynyl)-14-vinyl-2,4,10,12-tetraoxadispiro[5.1.5.2]pentadecane 、
(7R,14S)-1,5,9,13-tetraoxy-3,3,11,11-tetramethyl-7-(triisopropylsilylethynyl)-14-vinyl-2,4,10,12-tetraoxadispiro[5.1.5.2]pentadecane 、 (7R,14R)-1,5,9,13-tetraoxy-3,3,11,11-tetramethyl-7-(triisopropylsilylethynyl)-14-vinyl-2,4,10,12-tetraoxadispiro[5.1.5.2]pentadecane 、 (7S,14R)-1,5,9,13-tetraoxy-3,3,11,11-tetramethyl-7-(triisopropylsilylethynyl)-14-vinyl-2,4,10,12-tetraoxadispiro[5.1.5.2]pentadecane