Decarboxylative Bromination of Indole-2,3-dicarboxylic Acids Using Oxone® or CAN in the Presence of Lithium Bromide
作者:Yasuyoshi Miki、Hideaki Umemoto、Misako Umemoto、Chiaki Ohta、Masashi Dohshita、Hiroki Tanaka、Syo Hattori、Hiromi Hamamoto
DOI:10.3987/com-09-11802
日期:——
The treatment of 1-methylindole-2,3-dicarboxylic acid with Oxone (R) and lithium bromide produced 3,3-dibromo-1-methyloxindole. However, the reaction of 1-benzenesulfonylindole-2,3-dicarboxylic acid with Oxone (R) and lithium bromide afforded 1-benzenesulfonyl-2,3-dibromoindole. In a similar manner, 2,3,5,6-tetrabromoindole was synthesized from 1-benzenesulfonyl-5,6-dibromoindole-2,3-dicarboxylic acid.