Photolysis of mesoionic 2,5-diphenyl-1,3-dithiol-4-one: a probable 4π-antiaromatic intermediate
Abstract
The photolysis of mesoionic 2,5-diphenyl-1,3-dithiol-4-one gave tetraphenyl-1,4-dithiin, diphenylacetylene, and sulphur, probably via an antiaromatic thiiren intermediate.