Configurational isomerism in trithiaterazocines; preparation and crystal structures of exo- and endo-3-triphenylarsinimino-7-phenuyl-1,3,5,2,4,6,8-trithiatetrazoncine, PhCN4S3NAsPh3
Abstract
The reactions of triphenylphosphine and triphenylarsine with the bicyclic thiazyl heterocycle PhCN5S3 produce the corresponding 3-imino-7-phenyl-1,3,5,2,4,6,8-trithiatetrazocines PhCN4S3NEPh3(E = P or As); the exo- and endo-isomers of PhCN4S3NAsPh3 have been characterized by X-ray crystallography.