HFC-134a as a fluorinated building block: short syntheses of α-fluoroenones
作者:J.Marie Bainbridge、Stuart Corr、Masatomi Kanai、Jonathan M Percy
DOI:10.1016/s0040-4039(99)02184-x
日期:2000.2
1,1,1,2-Tetrafluoroethane (HFC-134a) has been transformed into a range of alpha-fluoroenones via a direct route. Dehydrofluorinatisn/metallation allowed trifluorovinylsilanes to be prepared; these could be converted in situ, or isolated and treated further, with alkyllithium reagents to give difluorovinylsilanes. Fluoride-catalysed addition to aldehydes followed by acidic work-up allowed the isolation of a range of alpha-fluoroenones in two- or three-pots. (C) 2000 Elsevier Science Ltd. All rights reserved.