Abstract
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 I with an equal molar quantity of trans-1,2-dichloroethylene gave the double germylene insertion product trans-R 2ClGeCHCHCGeCIR 2 (R CH(SiMe 3) 2).
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