反应条件
1: 75 percent / 2,4-dinitrobenzenesulfenyl chloride; Et3N / 1,2-dichloro-ethane / 90 °C
2: Cs2CO3
3: Et3N / CH2Cl2 / 0 °C
4: 70 percent / LiHMDS / tetrahydrofuran / -78 - -5 °C
View Scheme
参考文献
McFadden, Jill M; Frehywot, Gojeb L; Townsend, Craig A
Organic letters, 2002 , vol. 4, # 22 p. 3859 - 3862
