A method for producing 4-hydroxydiphenyl ether,
characterized by reacting diphenyl ether with an acylating agent in the presence of an acid catalyst to obtain a 4-acyldiphenyl ether represented by the formula (1):
wherein R represents a substituted or unsubstituted alkyl or aryl group,
reacting the 4-acyldiphenyl ether with a peroxide to obtain a 4-acyloxydiphenyl ether represented by the formula (2):
wherein R has the same meaning as defined above, and solvolyzing the ester bond of the 4-acyloxydiphenyl ether, is provided.
一种生产 4-羟基二苯醚的方法、
其特征是在酸催化剂存在下,使二苯醚与酰化剂反应,得到由式(1)表示的 4-酰基二苯醚:
其中 R 代表取代或未取代的烷基或芳基、
将 4-乙酰基二苯醚与过氧化物反应,得到式(2)代表的 4-乙酰氧基二苯醚:
其中 R 的含义与上述定义相同,并溶解 4-乙酰氧基二苯醚的酯键。
Dilthey et al., Journal fur praktische Chemie (Leipzig 1954), 1931, vol. <2>129, p. 189,200
作者:Dilthey et al.
DOI:——
日期:——
One pot synthesis of unsymmetrical ketones from carboxylic and boronic acids via PyClU-mediated acylative Suzuki coupling
作者:Pedro M. Garcia-Barrantes、Kevin McGowan、Steven W. Ingram、Craig W. Lindsley
DOI:10.1016/j.tetlet.2017.01.064
日期:2017.3
A synthetic procedure for the preparation of ketones from easily accessible carboxylic acids has been developed. This methodology proceeds via in situ activation of the carboxylic acid with PyClU, followed by the palladium-catalyzed acylative cross-coupling with boronic acids. The reaction is performed in one pot, without the need of phosphine ligands, at room temperature and in reaction times of 2 h