학술논문

Regioselective Fluoroalkylphosphorylation of Unactivated Alkenes by Radical‐Mediated Alkoxyphosphine Rearrangement**.
Document Type
Article
Source
Angewandte Chemie. 7/25/2022, Vol. 134 Issue 30, p1-6. 6p.
Subject
*ALKENES
*RING formation (Chemistry)
*ALKYL iodide
*ELECTRON pairs
*SCISSION (Chemistry)
*ETHANOL
*SONOGASHIRA reaction
*IODINATION
Language
ISSN
0044-8249
Abstract
A novel distal radical rearrangement of alkoxyphosphine is developed for the first time and applied to the regioselective radical fluoroalkylphosphorylation of unactivated olefins. By employing a one‐pot two‐step reaction of (bis)homoallylic alcohols, organophosphine chlorides, and fluoroalkyl iodides under CFL (compact fluorescence light) irradiation, a series of fluoroalkylphosphorylated alkyl iodides and alcohols are easily synthesized by regiospecific installing a phosphonyl onto the inner carbon of terminal olefins and further iodination/hydroxylation. Mechanism studies reveal that the migration undergoes a distinctive radical cyclization/β‐scission on the lone electron pair of phosphorus, resulting in C−P bond formation and C−O bond cleavage. [ABSTRACT FROM AUTHOR]