A dehydrative alkylation with three kinds of Ir/B heterobimetallic polymeric catalysts in water is reported. The polymeric heterobimetallic catalysts were readily prepared by ionic convolution of a poly(catechol borate) and iridium complexes. The N-alkylation of ammonia and amines with alcohols, as alkylating agents, was carried out with a heterogeneous catalyst (1 mol% Ir) at 100 degrees C without the use of organic solvents under aerobic and aqueous conditions to afford the corresponding alkylated amines in high yield.
In-Water Dehydrative Alkylation of Ammonia and Amines with Alcohols by a Polymeric Bimetallic Catalyst
作者:Hidetoshi Ohta、Yoshinari Yuyama、Yasuhiro Uozumi、Yoichi M. A. Yamada
DOI:10.1021/ol201422s
日期:2011.8.5
An in-water dehydrative alkylation with a novel heteroblmetallic polymeric catalyst Is described. Thus, a boron iridium heteroblmetallic polymeric catalyst was prepared by ionic convolution of a poly(catechol borate) and an Iridium complex. The alkylation of ammonia and amines with alcohols, alkylating agents, was performed with 1 mol % Ir of the heterogeneous catalyst In water without the use of organic solvents under aerobic conditions to give the corresponding alkylated amines.
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