申请人:Bayer Aktiengesellschaft
公开号:US04358409A1
公开(公告)日:1982-11-09
Styryl-cyclopropane derivatives of the formula ##STR1## in which R.sup.9 represents independently of one another when n=2, halogen, cyano, nitro, or an optionally halogen-substituted alkyl, alkoxy, alkylthio or alkylenedioxy radical, n represents zero, 1, 2, 3, 4 or 5, R.sup.10 represents hydrogen or halogen and Y represents acetyl, cyano or carbamoyl, are produced by reacting a benzylphosphonic acid ester of the formula ##STR2## in which R.sup.4 each independently represents alkyl or phenyl or together represent alkylene, with a formylcyclopropane derivative of the formula ##STR3## or by reacting an .alpha.-hydroxyphosphonic acid ester of the formula ##STR4## with an olefinating agent of the formula ##STR5## in which Z' represents a phosphorus-containing radical ##STR6## wherein R.sup.5 and R.sup.6 are identical or different and individually represent alkyl, phenyl, alkoxy or pehnoxy or R.sup.5 and R.sup.6 together represent alkanedioxy, R.sup.7 represents alkyl or phenyl and X represents halogen, in the presence of a base at a temperature between about -70.degree. and +150.degree. C. Other olefins can be similarly prepared. Many intermediates are new and the end products are themselves intermediates for insecticides.
通过将具有以下结构的苯基磷酸酯与具有以下结构的酰基环丙烷衍生物反应,可以制备公式的苯基环丙烷衍生物:
其中R.sup.9表示独立的卤素,氰基,硝基或者一个可选择地取代卤素的烷基,烷氧基,烷基硫基或烷基二氧基基团时,当n=2时,n表示零,1,2,3,4或5,R.sup.10表示氢或卤素,Y表示乙酰基,氰基或者羰基。
或者通过将具有以下结构的α-羟基磷酸酯与具有以下结构的烯化试剂反应,也可以制备这些环丙烷衍生物:
其中Z'表示一个含磷基团,R.sup.5和R.sup.6相同或不同,分别表示烷基,苯基,烷氧基或苯氧基,或者R.sup.5和R.sup.6一起表示烷二氧基,R.sup.7表示烷基或苯基,X表示卤素,在碱存在下,在大约-70℃至+150℃的温度下进行反应。其他烯烃也可以类似地制备。许多中间体是新的,最终产物本身也是杀虫剂的中间体。