Reaction of α-chloro-α-phenylselenoesters with silyl enol ethers. Synthesis of α-phenylseleno-γ-keto esters and γ-butyrolactones
作者:Claudio C. Silveira、Antonio L. Braga、Alessandra Machado、Gustavo L. Fiorin、Miguel J Dabdoub
DOI:10.1016/s0040-4039(96)02151-x
日期:1996.12
Silyl enol ethers of ketones are alkylated with ethyl α-chloro-α-phenylseleno acetate 1a or with ethyl α-chloro-α-phenylseleno propionate 1b, mediated by zinc bromide to give the corresponding α-phenylseleno-γ-keto esters 3 in moderate to good yields.
将酮的甲硅烷基烯醇醚用α-氯-α-苯基硒代乙酸乙酯1a或α-氯-α-苯基硒代丙酸乙酯1b烷基化,并由溴化锌介导,得到适量的相应α-苯基硒代-γ-酮酸酯3高产。