A new mechanism for reactions of carbenes and bicyclo[1.1.0]butanes
β Scribed by Linxiao Xu; Thomas Miebach; Udo H. Brinker; William B. Smith
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- French
- Weight
- 226 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0040-4039
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In valence bond description, a complex of a transition metal MxLn (x = oxidation number, L = ligand) and a carbene :CRR' (R, R' = H or carbon function) exists as a resonance hybrid consisting of the ylene form Ia and the two polar contributors, the metal-bonded carbanion Ib (ylide) and the metal-bon
We have previously reported' the reaction of 1,1-dibrcmo-2,2,3,3\_tetrsmethylcyclopropane (I.) with methyllithium to give l-isopropenyl-1-methylcyclopropane (2) as the major product. The primary product from the reaction was proposed aa 1,2,2-trimethylbicyclo-