反应详情

A mixture of 9,9-bis(2'-chloroethyl)thioxanthene (3.4 g.) and benzylamine (10 ml.) is heated under reflux for 2 hours, cooled diluted with water (100 ml.) and acidified with concentrated hydrochloric acid. The liquid is decanted from the residual gum which is triturated with water (200 ml.) when it solidifies. The solid is crystallised from ethanol to give 1'-benzylthioxanthene-9-spiro-4'-piperidine, m.p. 248° C. Addition of ether to the ethanolic filtrate remaining after removal, by filtration, of the base, yields 1' -benzylthioxanthene-9-spiro-4'-piperidine hydrochloride, m.p. 263°-266° C.

1. temperatureis heated
2. temperatureunder reflux for 2 hours
3. temperaturecooled
4. customThe liquid is decanted from the residual gum which
5. customis triturated with water (200 ml.) when it
6. customThe solid is crystallised from ethanol