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Synthesis of amp;agr;, amp;bgr;, amp;bgr;-trifluorostyrene via in-situ formation of trifluorovinyl metal halide
Synthesis of amp;agr;, amp;bgr;, amp;bgr;-trifluorostyrene via in-situ formation of trifluorovinyl metal halide
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机译:通过原位形成三氟乙烯基金属卤化物合成&agr,&bgr,&bgr-三氟苯乙烯
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摘要
&agr;,&bgr;,&bgr;-Trifluorostyrene and derivatives thereof synthesized in two steps from 1,1,1,2-tetrafluoroethylene. In the first step, 1,1,1,2-tetrafluoroethylene is reacted with a base, a metal salt such as zinc chloride and an optionally amine to form a trifluorovinyl metal complex. In the second step, the trifluorostyrene or derivative is obtained by reacting the trifluorovinyl metal complex with an aryl transfer agent such as, for example, an aryl triflate or an aryl halide, in the presence of a metal catalyst and optionally a coordinating ligand. Both steps may be carried out in one reactor.
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