All-carbon phosphoranes via difluorocarbene trapping

Autor:	Alexander A. Korlyukov, Vladimir O. Smirnov, Alexander D. Volodin, Alexander D. Dilman
Rok vydání:	2021
Předmět:	Difluorocarbene Chemistry Metals and Alloys chemistry.chemical_element General Chemistry Trapping Photochemistry Phosphorane Catalysis Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound Materials Chemistry Ceramics and Composites Phosphonium Carbon
Zdroj:	Chemical Communications. 57:4823-4826
ISSN:	1364-548X 1359-7345
DOI:	10.1039/d1cc01075a
Popis:	A 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.
Databáze:	OpenAIRE
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