A novel synthesis of 13-dithiol-2-ones from S-propargyl dithiocarbonates
摘要:
Upon heating in chlorobenzene in the presence of a carboxylic acid, propargylic xanthates 1b-h give the corresponding 1,3-dithiol-2-ones 10 b-h and/or 11 b-h, the former being easily isomerised to the latter with hot trifluoroacetic acid.