Iridium-catalyzed regioselective decarboxylative allylation of β-ketoacids: efficient construction of γ,δ-unsaturated ketones
作者:Shu-Jie Chen、Guo-Ping Lu、Chun Cai
DOI:10.1039/c5cc03591k
日期:——
A highly regioselective protocol is reported for the efficient construction of γ,δ-unsaturated ketones from β-ketoacids and allylic alcohols.
报道了一种高选择性的方法,用于从β-酮酸和烯丙醇有效构建γ,δ-不饱和酮。
Iridium-Catalyzed Regio- and Enantioselective Allylation of Ketone Enolates
作者:Timm Graening、John F. Hartwig
DOI:10.1021/ja0566275
日期:2005.12.1
regioselectivities and enantioselectivities (91-96% ee). The combination of CsF and ZnF2 was shown to promote this reaction and suppress the formation of diallylation byproducts. In addition, iridium complexes derived from simple phosphoramidite ligands were shown to catalyze this reaction with excellent selectivities, and spectroscopic data show that a cyclometalated Ir precatalyst is formed in situ. This process
Iridium-catalyzed enantioselective allylation of silyl enol ethers derived from ketones and α,β-unsaturated ketones
作者:Xiao Liang、Kun Wei、Yu-Rong Yang
DOI:10.1039/c5cc07221b
日期:——
The unified Ir-catalyzed enantioselective allylic substitution reactions of silylenolethersderivedfromketones and [small alpha],[small beta]-unsaturated ketones with branched, racemic allylic alcohols is described. This transformation is catalyzed by the...