Piers-Rubinsztajn reaction to unlock an 8-step synthesis of 7-hydroxy cannabidiol

RSC Adv. 2024 Jan 16;14(4):2741-2744. doi: 10.1039/d3ra08392f. eCollection 2024 Jan 10.

Abstract

A scalable synthesis of 7-hydroxy cannabidiol (7-OH CBD), a primary metabolite of (-)-cannabidiol (CBD), is highly desirable, from an industrial point of view, to enable future clinical trials. A Piers-Rubinsztajn reaction was key to enable a mild deprotection and a concise synthesis of 7-OH CBD from commercially available CBD, in 31% overall yield.