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| - On Accounting for the Stereoselective Control ofthe Metal-Catalyzed RautenstrauchCyclopropanation by Computational Methods
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| - The mechanism of the intramolecular Pt(II)-catalyzed Rautenstrauch cyclopropanation and the stereochemical implications have been investigated by computational methods. Thereaction takes place through a cyclopropanation step preceding the cleavage of the C−O bond, thus ensuring the transferof chiral information from the stereogenic propargylic center.Our results agree with experimental findings and accountfor the origin of the substrate-dependent selectivity on thebasis of subtle electronic effects and steric interactions inthe cyclopropanation transition-state structure.
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