申请人:GAF Corporation
公开号:US04218392A1
公开(公告)日:1980-08-19
This invention relates to a method of making in high yield light absorber compounds which are (2-cyano-3,3-diphenylacryloxy) alkylene acrylic acid esters having the formula: ##STR1## where (Ar).sub.1 and (Ar).sub.2 are aromatic carbocyclic nuclei of the benzene and naphthalene series and are independently selected from phenyl or phenyl substituted with alkyl, halo, alkoxy, carboxy, carbalkoxy, cyano, acetyl, benzoyl, phenyl, alkyl phenyl, phenoxy phenyl, alkyl substituted phenoxy, or alkoxy phenyl substituted phenyl and naphthyl; X is alkylene, C.sub.2 -C.sub.17, unsubstituted or substituted with halo, cyano, alkyl C.sub.1 -C.sub.6 alkoxy C.sub.1 -C.sub.6, alkoxyalkyl C.sub.1 -C.sub.6, or alkoxyalkyleneoxy C.sub.1 -C.sub.6 ; and Y is copolymerizable radical selected from acryloyl C.sub.3 -C.sub.12 alkylacryloyl C.sub.3 -C.sub.12, acryloxyalkyl C.sub.3 -C.sub.12, acryloxyhydroxyalkyl and alkylacryloxyhydroxyalkyl C.sub.3 -C.sub.12. The method comprises: (a) esterifying a hydroxyalkylene cyanoacetate with an acryloylhalide or acrylic acid to form a (2-acryloxyalkyl) 2-cyanoacetate intermediate, and, (b) condensing the intermediate directly with a benzophenone to provide the desired product.
本发明涉及一种制备高产率的光吸收化合物的方法,该化合物是(2-氰基-3,3-二苯基丙烯酰氧基)烷基丙烯酸酯,其化学式为:##STR1##其中(Ar).sub.1和(Ar).sub.2是苯和萘系芳香环核,可以独立地选择为苯基或取代有烷基、卤素、烷氧基、羧基、羧酸烷酯、氰基、乙酰基、苯甲酰基、苯基、烷基苯基、苯氧基苯基、取代有烷基的苯氧基苯基或取代有烷氧基的苯基取代的苯基和萘基;X是烷基,C.sub.2-C.sub.17,未取代或取代有卤素、氰基、烷基C.sub.1-C.sub.6、烷氧基C.sub.1-C.sub.6、烷氧基烷基C.sub.1-C.sub.6或烷氧基烷基氧基C.sub.1-C.sub.6;Y是可共聚的基团,选择自丙烯酰C.sub.3-C.sub.12烷基丙烯酰C.sub.3-C.sub.12、丙烯氧基烷基C.sub.3-C.sub.12、丙烯氧基羟基烷基和烷基丙烯氧基羟基烷基C.sub.3-C.sub.12。该方法包括:(a)将羟基烷基氰乙酸酯与丙烯酰卤或丙烯酸酯酯化形成(2-丙烯氧基烷基)2-氰乙酸酯中间体,以及(b)将中间体直接与苯基苯酮缩合以提供所需的产物。