Phenylselenotris(trimethylsilyl)silane and phenyltellurotris(trimethylsilyl)silane: versatile reagents for the preparation of phenylseleno- and phenyltelluro-formates
作者:Carl H. Schiesser、Melissa A. Skidmore
DOI:10.1039/a704402j
日期:——
Phenyltellurotris(trimethylsilyl)silane 4 and
(4-fluorophenyltelluro)tris(trimethylsilyl)silane 5 react with methyl,
2-methylpropyl, cyclohexyl and phenyl substituted chloroformates (7, 11,
15, 19) in benzene and in the presence of
tetrakis(triphenylphosphine)palladium(0) (4 mol%) to afford the
corresponding aryltelluroformate (8, 9, 12, 13, 16, 17, 20, 21) in
50–79% yield; this procedure is also applicable to the preparation
of (phenylseleno)formates and seleno- and telluro-esters.
苯基碲杂三(三甲基硅基)硅烷4和(4-氟苯基碲)三(三甲基硅基)硅烷5与甲基、2-甲基丙基、环己基和苯基取代的氯甲酸酯(7、11、15、19)在苯中,并在四(三苯基膦)钯(0)(4摩尔%)的存在下反应,以50-79%的产率得到相应的芳基碲甲酸酯(8、9、12、13、16、17、20、21);该方法也适用于(苯基硒)甲酸酯和硒、碲酯的制备。