Facile oxidation of benzyl ethers by the 2-nitrobenzenesulfonylperoxyl intermediate generated from 2-nitrobenzenesulfonyl chloride and superoxide
作者:Yong Hae Kim、Yong Il Kim、Joong Young Kim
DOI:10.1039/a800106e
日期:——
Various benzyl ethers react with a 2-nitrobenzenesulfonylperoxyl radical intermediate generated from 2-nitrobenzenesulfonyl chloride and potassium superoxide at –25 °C in acetonitrile to give the corresponding esters in high yields.
Benzylation of arenes with benzyl ethers promoted by the in situ prepared superacid BF3–H2O
作者:Yu Li、Yan Xiong、Xueming Li、Xuege Ling、Ruofeng Huang、Xiaohui Zhang、Jianchun Yang
DOI:10.1039/c4gc00005f
日期:——
An efficient and environmentally friendly benzylation of arenes with benzyl ethers as benzyl donors using BF3âEt2O to generate in situ the superacid BF3âH2O as an efficient promotor has been described. A wide variety of functional groups have been investigated and found to be compatible to give the desired diarylmethanes in yields of up to 99%. The crucial role of the moisture content in this transformation has been demonstrated by detailed investigations.
Kikugawa,Y.; Ogawa,Y., Chemical and pharmaceutical bulletin, 1979, vol. 27, p. 2405 - 2410
作者:Kikugawa,Y.、Ogawa,Y.
DOI:——
日期:——
Cu(OTf)2-catalyzed Et3SiH-reductive etherification of various carbonyl compounds with trimethylsilyl ethers
作者:Wei-Chieh Yang、Xin-An Lu、Suvarn S Kulkarni、Shang-Cheng Hung
DOI:10.1016/j.tetlet.2003.08.085
日期:2003.10
A triethylsilane-reductive etherification of the trimethylsilyl ethers with a variety of carbonyl compounds in good yields at room temperature employing 0.5 mol% Cu(OTf)(2) as an extremely efficient catalyst is described here. (C) 2003 Elsevier Ltd. All rights reserved.
Oxidative Cleavage of Benzylic and Related Ethers, Using an Oxoammonium Salt
作者:Priya P. Pradhan、James M. Bobbitt、William F. Bailey
DOI:10.1021/jo902144b
日期:2009.12.18
Benzylic ethers and related ArCH2OR substrates are oxidatively cleaved by 4-acetamido-2,2,6,6-tetramethylpiperidine-1-oxoammonium tetrafluoroborate (1) in wet CH3CN at room temperature to give the corresponding aromatic aldehyde and alcohol in high yield. Primary or secondary alcohol products are further oxidized by 1 to give carboxylic acids and ketones, respectively. The oxidation likely involves