Gold(<scp>i</scp>)-catalysed dehydrative formation of ethers from benzylic alcohols and phenols
作者:Richard M. P. Veenboer、Steven P. Nolan
DOI:10.1039/c5gc00684h
日期:——
We report the cross-dehydrative reaction of two alcohols to form unsymmetrical ethers using NHC-gold(I) complexes (NHC = N-heterocylic carbene). The optimised methodology proceeds under mild reaction conditions and produces water...
Process for reducing the level of trisubstituted phosphine, arsine and/or stibine oxide in a mixture
申请人:BASF AKTIENGESELLSCHAFT
公开号:EP0850902A1
公开(公告)日:1998-07-01
A process for reducing the level of tri-substituted phosphine, arsine and/or stibine oxide from a mixture comprising a desired product and at least one such oxide is provided, comprising the addition of a metal salt to the mixture to form a complex with the oxide, and removing the complex from the mixture. This process has particular utility for removing triphenylphosphine oxide from a mixture - a task that was previously hard to perform.
Copper Catalyzed sp<sup>3</sup> C–H Etherification with Acyl Protected Phenols
作者:Tolani K. Salvador、Charles H. Arnett、Subrata Kundu、Nicholas G. Sapiezynski、Jeffery A. Bertke、Mahdi Raghibi Boroujeni、Timothy H. Warren
DOI:10.1021/jacs.6b09057
日期:2016.12.28
A variety of acyl protected phenols AcOAr participate in sp3 C-H etherification of substrates R-H to give alkyl aryl ethers R-OAr employing tBuOOtBu as oxidant with copper(I) β-diketiminato catalysts [CuI]. Although 1°, 2°, and 3° C-H bonds may be functionalized, selectivity studies reveal a preference for the construction of hindered, 3° C-OAr bonds. Mechanistic studies indicate that β-diketiminato