反应条件
potassium carbonate
1) methanesulfonic acid, 70 deg C, 1.5 h, 2) DMF, 50 deg C, 6 h; Yield given. Multistep reaction. Yields of byproduct given;
参考文献
Camps; Coll; Colomina; Messeguer
Journal of Heterocyclic Chemistry, 1985 , vol. 22, # 2 p. 363 - 368