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Communication | Special issue | Vol 40, No. 1, 1995, pp.127-130
Published online, 1st January, 1970
DOI: 10.3987/COM-94-S29
Thermal Retrocycloaddition of 1,2,4,3-Trithiagermolanes: A New Method for Generation of Germanethiones

Norihiro Tokitoh, Tsuyoshi Matsumoto, and Renji Okazaki*

*Department of Chemistry, Graduate School of Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8567, Japan


Thermolysis of 5,5-diphenyl-1,2,4,3-trithiagermolanes bearing bulky aromatic substituents on germanium atom resulted in the formation of novel germanium-sulfur double bond compounds, diarylgermanethiones, which were found to undergo ready [2+2] and [2+4] cycloaddition reactions with dimethyl acetylenedicarboxylate and 2,3-dimethyl-1,3-butadiene to give a new class of germanium-containing heterocycles.