A new series of 5.!:!.-1.2-dithiepin-5-thiones were prepared from the reaction of 1.5-diarylpent-l-yne-3.5-diones and phosphorus pentasulfide. Some reactions of these dithiepins were studied and the structure of the parent compounds as well as all the products was confirmed from their spectral characteristics.
I E S EL KHOLY ,M G MAREI ,M M MISHRIKEY ,
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