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发明授权
US4777265A Preparation of acrylates and methacrylates 失效
丙烯酸酯和甲基丙烯酸酯的制备

Preparation of acrylates and methacrylates
摘要：
Acrylates or methacrylates I ##STR1## (A and B=C.sub.2 -C.sub.5 -alkylene, R.sup.1 =H, CH.sub.3) are prepared by reacting an acrylate or methacrylate II ##STR2## (R.sup.2 =C.sub.1 -C.sub.4 -alkyl) with a heterocycle III ##STR3## in the presence of titanium alcoholates chelate compounds of the metals titanium, zirconium, iron and zinc with 1,3-dicarbonyl compounds.
摘要（中）：

丙烯酸酯或甲基丙烯酸酯I（A和B = C 2 -C 5亚烷基，R 1 = H，CH 3）是通过使丙烯酸酯或甲基丙烯酸酯II（R2 = C1-C4-烷基）与杂环 在钛醇化物存在下，III，III，Ⅲ族金属螯合钛，锆，铁和锌与1,3-二羰基化合物的化合物。

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