CO or CN bonds in one pot with excellent regio- and stereoselectivity. Carboxylic acids, amides, and hydroxide are all suitable nucleophiles. Organoboronic acid acts as hydroxide transfer reagent. An intermediate π-allyl palladium complex was isolated, which yields improved catalytic performance as well as evidence of the origin of stereoselectivity. A derivatization study emphasizes the utility of the
Homolytic displacement at carbon: First example of α-attack in the allenyl and propargyl cobaloximes
作者:B.D. Gupta、Sujit Roy
DOI:10.1016/s0040-4039(00)85094-7
日期:1986.1
The reactions of allenyl and propargyl cobaloximes with organosulphonyl chlorides under anaerobic and photochemical conditions form sulphones by a novel homolytic attack at the α carbon to the metal.