Abstract
The interaction between CD 3Li and WCl 6 and MoCl 5 was studied at various Li/W and Li/Mo ratios. It has been shown that the decomposition of the W or Mo organometallic intermediate leads to CD 4, C 2D 6 and C 2D 4. The formation of CD 4 is believed to be due to CD 2:carbene creation in the system, while C 2D 4 is a product of the recombination of methylene fragments. At Li/ W = 4 mol ratio, as well as in case of MoCl 5, the decomposition appears to involve the formation of carbine complexes. The trimethylsilylmethylene complex which results from WCl 6-induced decomposition of Me 3SiCHN 2 is shown to be a poor initiator of cyclopentene polymerization. Minor amounts of trimethylvinylsilane were found to inhibit cyclopentene polymerization and pentene-2 metathesis as a result of substitution of the active RCH:alkyl carbene for the more stable Me 3SiCH:.
Published Version
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