反应条件
1: Na2CO3, Br2 / 1 h / Ambient temperature
2: 1.) AcOH, 2.) hydrazine hydrate / 1.) MeOH, reflux, 10 min, 2.) MeOH, from 50 to 60 deg C, 30 min
3: 1.) oxalyl chloride, DMSO, 2.) Et3N / 1.) CH2Cl2, -60 deg C, 15 min, 2.) CH2Cl2, -60 deg C, 5 min
View Scheme
参考文献
Brooker, Sally; Kelly, Robert J.
Journal of the Chemical Society - Dalton Transactions, 1996 , # 10 p. 2117 - 2122
