Synthesis of Aryl Ethers from Aromatic Carboxylic Acids
作者:Lukas Gooßen、Sukalyan Bhadra、Wojciech Dzik
DOI:10.1055/s-0033-1339470
日期:——
meta-substituted carboxylates are converted into para-substituted alkoxyarenes and vice versa. The combined processes provide a convenient synthetic entry to the important class of aromatic ethers from widely available carboxylicacids. A silver/copper bimetallic catalyst system promotes the decarboxylative Chan–Evans–Lam alkoxylation of ortho-substituted aromatic carboxylate salts with tetraalkyl orthosilicates
Transetherification of 2,4-dimethoxynitrobenzene by aromatic nucleophilic substitution
作者:Jiho Song、Hae Ju Kang、Jung Wuk Lee、Michelle A. Wenas、Seung Hwarn Jeong、Taeho Lee、Kyungsoo Oh、Kyung Hoon Min
DOI:10.1371/journal.pone.0183575
日期:——
In view of the few reports concerning aromatic nucleophilicsubstitution reactions featuring an alkoxy group as a leaving group, the aromatic nucleophilicsubstitution of 2,4-dimethoxynitrobenzene was investigated with a bulky t-butoxide nucleophile under microwave irradiation. The transetherification of 2,4-dimethoxynitrobenezene with sodium t-butoxide under specific conditions, namely for 20 min