Fluorinated acetylenes. Part 13 [1]. Synthesis of 1,6-diphenyl-3,3,4,4-tetrafluorohexa-1,5-diyne
作者:Michael G. Barlow、Sabiha Tajammal、Anthony E. Tipping
DOI:10.1016/s0022-1139(00)80063-9
日期:1993.9
The title compound (6) may be conveniently synthesised via the three-stage route:In the first stage the alkyne PhCCBr is also produced, and this undergoes reactionwith iodine generated in the second stage to give the alkene (E)-PhCI=CBrI (10) (upto 9.5%). Other by-products formed in the second stage, depending on the conditionsemployed, are the 1,4-diyne PhCCCF2CCPh (12), isolated in 3.5% yield
可以通过三步途径方便地合成标题化合物(6):在第一步中,还生成炔烃PhCCBr,然后使其与在第二步中生成的碘反应,得到烯烃(E)-PhCl = CBrI(10)(至多9.5%)。形成在第二阶段其他副产物,这取决于conditionsemployed,是1,4-二炔PhCCCF 2 CCPh(12),在3.5%的产率分离出,和1-碘-2,3-萘分离得到4-苯基四氟环丁烯(11),产率为11.5%。先进的机制可以解决所有孤立的产品。