Abstract
The energies required for deprotonation of the substituted benzenes XC 6H 5 have been calculated by an ab initio method. The results show that substituent effects in base cleavage of XC 6H 4SiMe 3 compounds (and possibly those in base-catalysed hydrogen exchange in substituted benzenes) are consistent with formation of the aryl carbanion XC 6H 4 − in the rate-determining step.
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