Reacción #4909

Ecuación de reacción

2-(2-chloroethyl)-2,3-dihydro-4-methylpyrido[3,2-f][1,4]thiazepin-5(4H)-one

2,4-bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane-2,4-disulfide

→

2-(2-Chloroethyl)-2,3-dihydro-4-methylpyrido[3,2-f][1,4]-thiazepine-5(4H)-thione

Disolventes

toluene

Condiciones de reacción

Tratamiento posterior

1. 1
   Temperaturawas refluxed for 3 hr
2. 2
   Extracciónextracted twice with dilute sodium hydroxide
3. 3
   ConcentraciónThe organic layer was concentrated
4. 4
   Otrothe residue chromatographed on the high pressure liquid chromatograph

Procedimiento

A mixture of 4.3 g (0.017 mole) of 2-(2-chloroethyl)-2,3-dihydro-4-methylpyrido[3,2-f][1,4]thiazepin-5(4H)-one, 100 ml of toluene and 4.8 g (0.012 mole) of 2,4-bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane-2,4-disulfide was refluxed for 3 hr and then extracted twice with dilute sodium hydroxide. The organic layer was concentrated and the residue chromatographed on the high pressure liquid chromatograph using a silica column and 50% ethyl acetate-50% hexane. The yield of title compound was 2 g, m.p. 160°-162° C.

Fuente