Diethyl ketal of 3,3-dibromo-3-fluoropropanal was prepared by UV-initiated condensation of fluorotribromomethane with ethyl vinyl ether, following Tarrant–Stump procedure. Direct oxidation of this acetal to ethyl 3,3-dibromo-3-fluoropropanoate was carried out using Caro’s acid. On treating this ester with triethylamine, dehydrobromination took place, yielding ethyl 3-bromo-3-fluoroacrylate. Finally, a selective reduction of the bromine atom by tributyltin hydride led to ethyl 3-fluoroacrylate.

中文翻译：

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用塔兰特-树桩缩醛合成3-氟丙烯酸乙酯

按照Tarrant–Stump程序，通过紫外引发的氟代三溴甲烷与乙基乙烯基醚的缩合反应制得3,3-二溴-3-氟丙醛的二乙基缩酮。使用卡罗酸将该缩醛直接氧化为3,3-二溴-3-氟丙酸乙酯。用三乙胺处理该酯后，发生脱氢溴化反应，得到3-溴-3-氟丙烯酸乙酯。最后，通过氢化三丁基锡选择性地还原溴原子，得到3-氟丙烯酸乙酯。