New and highly (E)-selective synthesis of terminal 1,3-diene via three-carbon elongation of aldehyde
作者:Hideki Maeta、Keisuke Suzuki
DOI:10.1016/s0040-4039(00)61102-4
日期:1992.9
A new synthetic method of 1,3-diene by three-carbon elongation of aldehyde is described. 3-Trimethylsilyl-1-propenylzirconocene chloride (2), generated from 3-trimethylsilyl-1-propyne (1) and Cp2Zr(H)Cl, reacts with aldehyde in the presence of catalytic AgClO4 and subsequent one-pot 1,4-elimination affords 1,3-dienes in high yields with excellent (E)-selectivities.
描述了一种通过醛的三碳延伸合成1,3-二烯的新方法。由3-三甲基甲硅烷基-1-丙炔(1)和Cp 2 Zr(H)Cl生成的3-三甲基甲硅烷基-1-丙烯基氯化锆(2)在催化AgClO 4和随后的一锅法1的存在下与醛反应。 4-消除提供高产率的1,3-二烯,具有优异的(E)选择性。