A series of 2-substituted quinoxaline derivatives including five novel compounds have been successfully synthesized from 2-chloroquinoxaline using microwave methodology. The yields of the quinoxalines synthesized through this method, were an improvement over the thermal methods usually employed.
Pd/PTABS: Low Temperature Etherification of Chloroheteroarenes
作者:Shatrughn Bhilare、Siva Sankar Murthy Bandaru、Jagrut Shah、Nicolas Chrysochos、Carola Schulzke、Yogesh S. Sanghvi、Anant R. Kapdi
DOI:10.1021/acs.joc.8b01840
日期:2018.11.2
efficient catalytic etherification protocol for chloroheteroarenes was developed using the Pd/PTABS catalytic system. The protocol is selective for the etherification of chloroheteroarenes using a large variety of electron-rich and electron-deficient phenol bearing synthons which include inter alia biologically and commercially important estrone, estradiol, tyrosine, and several other molecules. The mildness
The one-pot reaction of 2-chloroquinoxaline with phenoxide ion derivatives utilizing Ag+ as catalyst provided an efficient method for the preparation of five novel quinoxaline derivatives.