Certain esters of .alpha.-fluoroacrylic acid are accessible by hydrolyzing .alpha.-hydroxymethyl .alpha.-fluoromalonic acid esters and subsequently decarboxylating the hydrolysis product. The phenyl .alpha.-fluoroacrylates which are substituted on the phenyl radical can be prepared by hydroxymethylating dimethyl .alpha.-fluoromalonate, decarboxylating and dehydrating the resuiting dimethyl .alpha.-hydroxymethyl-.alpha.-fluoromalonate and esterifying the resuiting .alpha.-fluoroacrylic acid with substituted phenols. The substituted phenyl .alpha.-fluoroacrylates are colorless liquids or colorless solids which can be polymerized. They are suitable for use as a starting material for the preparation of fluorine polymers.
通过
水解α-羟甲基α-
氟丙二酸酯并随后脱羧
水解产物,可制备某些α-
氟丙烯酸酯。苯基α-
氟丙酸酯在苯基上取代的情况下可通过羟甲基化二甲基α-
氟丙二酸酯,脱羧和脱
水得到二甲基α-羟甲基α-
氟丙二酸酯,再通过酯化得到α-
氟丙烯酸酯,最终得到取代
苯酚的取代苯基α-
氟丙酸酯。这些取代苯基α-
氟丙酸酯是无色液体或无色固体,可以聚合。它们适用于用作制备
氟聚合物的起始材料。