Palladium catalysed allylic acetoxylation of dialkyl allyl phosphonates.
作者:Bruno Principato、Michel Maffei、Chhan Siv、Gérard Buono、Gilbert Peiffer
DOI:10.1016/0040-4020(95)01046-7
日期:1996.2
The catalytic acetoxylation of dialkyl allyl phosphonates with the Pd(OAc)2/benzoquinone/MnO2/HOAc system leads, regioselectively, to dialkyl 3- acetoxy 1-alkenyl phosphonates. On the basis of the regio- and stereoselectivity of the reaction, a mechanism is proposed which involves a (π-allyl) palladium complex as intermediate.
用Pd(OAc)2 /苯醌/ MnO 2 / HOAc体系催化二烷基烯丙基膦酸酯的乙酰氧基化,选择性地导致3-乙酰氧基1-链烯基膦酸二烷基酯。基于反应的区域选择性和立体选择性,提出了一种机理,该机理涉及(π-烯丙基)钯配合物作为中间体。