Novel Synthesis of 4,5-Bis(arylthio)-2,3,4,5-tetrahydro-1-benzothiepins: Noteworthy Cyclization by the Reaction of 2-Butynediol with Arenethiols in the Presence of Zinc Iodide
Novel Synthesis of 4,5-Bis(arylthio)-2,3,4,5-tetrahydro-1-benzothiepins: Noteworthy Cyclization by the Reaction of 2-Butynediol with Arenethiols in the Presence of Zinc Iodide
作者:Yoshio Ishino、Takashi Oka、Tsuneaki Hirashima
DOI:10.1055/s-1987-28090
日期:——
New cyclization products, 4,5-bis(arylthio)-2,3,4, 5-tetrahydro-1-benzothiepins were obtained in good yield by the reaction of 2-butynediol with arenethiols in the presence of zinc iodide. The reaction is assumed to proceed through intramolecular cyclization of a cationic intermediate generated in situ.