Investigation of molecular carbonium ion rearrangements by the molecular mechanics method

The review considers problems of the application of the molecular mechanics method in the prediction of the conversion reactions of hydrocarbon carbonium ions with a localised charge. The methods for the estimation of the heights of the activation barriers to the 1,2-shift of the migrating species, the possibilities of the method for the prediction of the transannular cyclisation of carbonium ions, and certain examples of the influence of the acidity of the medium are discussed. The bibliography includes 47 references.