反应条件
1: methanesulfonic acid / 0.5 h / 90 °C / Inert atmosphere 2: triphenyl phosphite; bromine; N-ethyl-N,N-diisopropylamine / dichloromethane / 20 h / -78 °C / Inert atmosphere; Reflux 3: 2,3-dicyano-5,6-dichloro-p-benzoquinone / benzene / 4 h / Reflux View Scheme
参考文献
Zhang, Zhenfa; Sangaiah, Ramiah; Gold, Avram; Ball, Louise M.
Organic and Biomolecular Chemistry, 2011 , vol. 9, # 15 p. 5431 - 5435