Photolysis of 2,6-bis(alkylthio)-3,5-diphenyl-4H-thiopyran-4-one: formation of cyclopentadienones
Abstract
Irradiation of 2,6-bis(alkylthio)-3,5-diphenyl-4H-thiopyran-4-ones with a medium-pressure mercury lamp with a Pyrex filter produced 3,4-bis(alkylthio)-2,5-diphenylcyclopentadienones.