학술논문
Direct fluorination of diarylacetylenes to diaryltetrafluoroethanes with convenient F2 equivalent nitrosonium tetrafluoroborate-pyridinium polyhydrogen fluoride
Document Type
Academic Journal
Source
Journal of Organic Chemistry. Oct 21, 1994, Vol. 59 Issue 21, p6493, 2 p.
Subject
Language
ISSN
0022-3263
Abstract
Nitrosonium tetrafluoroborate and pyridinium polyhydrogen fluoride (PPHF) reagent system function as F2 equivalent reagent in the direct one-step fluorination of diarylacetylenes to diaryltetrafluoroethanes. Fluorination of 1-phenyl-1-butyne by this system leads to the formation of 1-phenyl-1,1,2,2-tetrafluorobutane and 1-phenyl-1,1, 2-trifluoro-2-butene. Mechanistic study reveals the initial formation of NOF, followed by addition, protonation and nucleophilic displacement steps.