The properties of these compounds that can exhibit anchimeric assistance have been extensively studied by George Olah. The production of alcohols after diazotization of the starting material in the Demyanov reaction proceeds through the creation of these compounds. They can 
The properties of these compounds that can exhibit anchimeric assistance have been extensively studied by George Olah. The production of alcohols after diazotization of the starting material in the Demyanov reaction proceeds through the creation of these compounds. They can undergo Wagner-Meerwein rearrangement to produce more stable ones. Examples include the Wheland intermediate, produced during electrophilic aromatic substitution by the addition of the electrophile. Their relative stabilities can be justified by invoking hyperconjugation to explain why tertiary ones are more stable than secondary and primary ones. FTP name these reactive intermediates generated in S-N-one mechanisms, compounds where a carbon atom possesses a positive charge.
The properties of these compounds that can exhibit anchimeric assistance have been extensively studied by George Olah.
carbocations