Photolysis of cyclotrigermane. Synthesis and chemistry of digermiranes and digermetanes containing sulfur and selenium

Article abstract of DOI:10.1021/om00099a018

Photolysis of hexamesitylcyclotrigermane (1) produces tetramesityldigermene (4) and dimesitylgermylene (5) which react with elemental sulfur to give 2,2,3,3-tetramesitylthiadigermirane (2) and 2,2,4,4-tetramesityl-1,3,2,4-dithiadigermetane (3). Selenium also reacts with digermene 4 to afford 2,2,3,3-tetramesitylselenadigermirane (7). Photolysis of 2 with 2,3-dimethyl-1,3-butadiene produces only products from dimesitylgermylene (5) and dimesitylgermanethione (6). The reactions of 2 with pyridine N-oxide, sulfur, and selenium yield digermetanes containing O, S, and Se.