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Short Paper | Regular issue | Vol 96, No. 7, 2018, pp.1259-1265
Published online, 12th June, 2018
DOI: 10.3987/COM-18-13912
■ Synthesis and Electrochemical Properties of 2,2’-Biguaiazulene-Based 1,2-Dithiin and Thiophene

Ohki Sato* and Ryuto Sakai

*Department of Chemistry, Graduate School of Science and Engineering, Saitama University, Shimo-okubo 255, Sakura-ku, Saitama 338-8570, Japan

Abstract

The synthesis of diguaiazuleno[3,2-c:2’,3’-e][1,2]dithiin was achieved by the reaction of 2,2’-biguaiazulene with disulfur dichloride/imidazole as a sulfuration reagent. Thermolysis of the dithiin afforded the corresponding desulfurized compound, diguaiazuleno[3,2-b:2’,3’-d]thiophene. Cyclic voltammetry of the S-heterocycles showed one reversible wave at the reduction region, respectively.