摘要:
Reaction of a stable germylene, bis(bis(trimethylsilyl)methyl)germylene (1), with an excess of trans-1,2-dichloroethylene, cis-1,2-dichloroethylene or 1,1-dichloroethylene gave the corresponding vinylchlorogermanes 2, 3 and 4 respectively in quantitative yield. The stereochemistry of the starting material was retained in the product, showing that these insertion reactions proceeded stereospecifically. Reaction of 1 with an equal molar quantity of trans-1,2-dichloroethylene gave the double germylene insertion product trans-R(2)ClGeCH=CHCGeClR(2) (R = CH(SiMe(3))(2)).