Palladium-catalyzed preparation of α-allyl esters and α,β-unsaturated esters from saturated esters via their silyl acetals
作者:Jro Tsuji、Kazuhiko Takahashi、Ichiro Minami、Isao Shimizu
DOI:10.1016/s0040-4039(01)81518-5
日期:——
Reaction of ketene silyl acetals with allylic carbonates in the presence of palladium-phosphine catalyst in dioxane gives α-allyl esters in high yields. When the reaction is carried out with phosphine-free palladium catalyst in nitriles, α,β-unsaturated esters are obtained in good yields.
在钯-膦催化剂存在下于二恶烷中使乙烯酮甲硅烷基缩醛与碳酸烯丙酯反应,以高收率得到α-烯丙基酯。当用无膦的钯催化剂在腈中进行反应时,以良好的产率获得α,β-不饱和酯。