Sonochemical synthesis of 1,1-dimethyl-1-germacyclopent-3-enes and the extrusion of dimethylgermylene upon their pyrolysis
摘要:
The ultrasound-promoted reaction of dichlorodimethylgermane with lithium in the presence of substituted 1,3-dienes results in the formation of the corresponding germacyclopent-3-enes in good yields. The gas-phase flow pyrolysis of 1,1,3-trimethyl- and 1,1,3,4-tetramethyl-1-germacyclopent-3-enes leads to the extrusion of dimethylgermylene that has been trapped by addition to 1,3-dienes.