An Unusual Friedel–Crafts Reaction and Violation of the Markovnikov Rule in the Formation of an Adamantyl Arene
Year: 2025
Type: article
Abstract: Yoshihara, Hiroki, Yagi, and Itami utilized an unusual Friedel-Crafts-like alkylation in the synthesis of an adamantane-annulated arene. The precursor was a 3° carbocation, which they proposed undergoes a Wagner-Meerwein shift to a 2° carbocation, which subsequently alkylates a benzene ring. This mechanism was supported by their DFT calculations. However, their choice of the B3LYP functional often finds false transition structures. A more appropriate functional showed that the alkylation occurs via a concerted reaction.
Source: The Journal of Organic Chemistry
Authors: B. Andes Hess, Lidia Smentek
Institution: Vanderbilt University
Language: English
Subfield: Spectroscopy
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
OpenAlex ID: W4409425304