showing direct correlation to the affinity of the pendant donor group to the indium center. Reactivity towards polymerization of epichlorohydrin and cyclohexene oxide followed the trend 2a > 2b > 2c with control of polymerization following an inverse relationship to reactivity. Surprisingly, 2c polymerized racemic lactide without an external initiator, likely through an alkyl-initiated coordination-insertion
Highly Selective Palladium-Catalyzed Oxidative C<i>sp</i><sup>2</sup>C<i>sp</i><sup>3</sup>Cross-Coupling of Arylzinc and Alkylindium Reagents through Double Transmetallation
作者:Liqun Jin、Yingsheng Zhao、Lizheng Zhu、Heng Zhang、Aiwen Lei
DOI:10.1002/adsc.200800703
日期:2009.3
Abstractmagnified imageUsing desyl chloride (2‐chloro‐1,2‐diphenylethanone) as the oxidant, the palladium‐catalyzed reaction of arylzinc with alkylindium reagents occurred smoothly in a highly selective manner to afford the products in 57–90% yields. Preliminary kinetic data indicated that alkylindium reagents were highly favored for transmetallation with the alkoxy‐palladium moiety.