Lawesson's reagent → HCID 15132540, compound

Participants

Reaction Steps

To 9-bromo-1,2-dihydrobenzo[b]pyrrolo[3,2,1-jk][1,4]benzodiazepin-6-one (9 g) in toluene (175 ml), under nitrogen, was added 2,4-bis(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane-2,4-disulfide (12.6 g). The mixture was refluxed for 1 hr and concentrated under reduced pressure. Recrystallization of the residue from chloroform:hexane afforded 6 g (63%) of product, mp 196°-197° C.

Provenance & Evidence