Catalytic Conversions in Water. Part 23: Steric Effects and Increased Substrate Scope in the Palladium-Neocuproine Catalyzed Aerobic Oxidation of Alcohols in Aqueous Solvents#
作者:Gerd-Jan ten Brink、Isabel W. C. E. Arends、Marcel Hoogenraad、Göran Verspui、Roger A. Sheldon
DOI:10.1002/adsc.200303134
日期:2003.12
experimentation. (Neocuproine)Pd(OAc)2 (RCH3) was found to be a highly active catalyst for alcohol oxidation in 1 : 1 water/DMSO mixtures. The catalyst is unique in that it tolerates water, polar co-solvents and a wide variety of functional groups in the alcohol. Turn-over frequencies of >1500 h−1 were achieved and a series of alcohols was oxidised with 0.1 to 0.5 mol % of catalyst.
通过高通量研究了取代基对(2,9-R 2 -1,10-菲咯啉)钯(II)催化的2-己醇好氧氧化中菲咯啉的2-位和9-位的空间影响实验。已发现(新癸丙氨酸)Pd(OAc)2(RCH 3)是一种高活性催化剂,可在1:1水/ DMSO混合物中进行醇氧化。该催化剂的独特之处在于它可以耐受水,极性助溶剂和醇中的各种官能团。达到> 1500 h -1的周转频率,并用0.1至0.5 mol%的催化剂将一系列醇氧化。