When triphenylmethanesulfenyl chloride (1) (or its thio homolog 2) are
treated with various bicycles, 1,2 addition reactions take place. Fin
al products occur via an episulfide intermediate. The stereochemistry
of addition has been determined by x-ray analysis. Finally, evidence h
as been obtained for the delivery of diatomic sulfur, likely via inter
mediate 3.