Synthesis of substituted phenols via 1,1-dichloro-2-nitroethene promoted condensation of carbonyl compounds with DMF
作者:Fukai Wang、Wei Wu、Xiaoyong Xu、Xusheng Shao、Zhong Li
DOI:10.1016/j.tetlet.2018.04.076
日期:2018.6
A novel and efficient metal-free synthesis of phenoliccompounds was developed via coupling cyclization of DMF as a carbon source with active methylene compounds such as 1,3-dicarbonyl compounds with the assistance of 1,1-dichloro-2-nitroethene. The method we used was different from other traditional phenol functionalization methods. In the reaction, the 1,1-dichloro-2-nitroethene as a promoter which
The use of carbon dioxide as a renewable and environmentally friendly source of carbon is highly attractive. A novel and efficient protocol for the synthesis of phenolic compounds from carbonyl compounds and carbon dioxide in the presence of a catalytic amount of Pd(OAc)2 has been developed. This reaction is appealing for industries and is a tool for the sequestration of carbon dioxide.
Copper-catalyzed synthesis of phenolic compounds with DMSO as the methylene source
作者:Run Luo、Lina Guo、Wenjie Liu、Shaohua Wang
DOI:10.1080/00397911.2021.1902536
日期:——
application of DMSO as an ideal source of carbon is highly attractive. A simple and novel protocol has been developed for the synthesis of phenoliccompounds via CuSO4·5H2O-catalyzed cyclization of 1,3-dicarbonyl compounds with DMSO. It was found that the unsymmetrical 1,3-dicarbonyl compounds always gave a mixture of two isomeric products. In addition, the deuterium-labeling experiments revealed that the C2