All-carbon phosphoranes < em > via < /em > difluorocarbene trapping

Chem Commun (Camb). 2021 May 13;57(39):4823-4826. doi: 10.1039/d1cc01075a.ABSTRACTA reaction of intramolecularly disposed phosphonium and phenoxide (or thiophenoxide) fragments with difluorocarbene affording all-carbon λ5-phosphoranes is described. The presence of electron-withdrawing CHF2-groups at the phosphonium center is important for the phosphorane formation. In a phosphorane, both phenyl groups located in the equatorial positions undergo 1,2-P,C migration under thermal conditions.PMID:33982701 | DOI:10.1039/d1cc01075a

Source: Chemical Communications - May 13, 2021 Category: Chemistry Authors: Vladimir O Smirnov Alexander D Volodin Alexander A Korlyukov Alexander D Dilman Source Type: research