反应详情

A solution of 3H-phenothiazin-3-one (2 g) and acetaldehyde (32 ml) in benzene (240 ml) was irradiated with a 450 watt lamp for 2 days. The volatiles were removed under vacuum and the residue chromatographed on a silica gel column eluting with 25% EtOAc/hexane to afford the desired compound, m.p. 222° C.

1. customThe volatiles were removed under vacuum
2. customthe residue chromatographed on a silica gel column
3. washeluting with 25% EtOAc/hexane