反应条件
1: 1.) chlorosulfonic acid / 1.) dioxan, 40 deg C, 30 min, 2.) water
2: POCl3 / acetonitrile; tetrahydrothiophene 1,1-dioxide / 0.17 h / 20 °C
View Scheme
参考文献
Robinson, Andrew J.; Wyatt, Peter B.
Tetrahedron, 1993 , vol. 49, # 48 p. 11329 - 11340