申请人:Bayer Aktiengesellschaft
公开号:US04420435A1
公开(公告)日:1983-12-13
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## or --P(R.sup.7).sub.3.sup..sym. X.sup..crclbar. wherein R.sup.5 and R.sup.6 are identical or different and individually represent alkyl, phenyl, alkoxy or phenoxy 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 and +150.degree. C. Other olefins can be similarly prepared. Many intermediates are new and the end products are themselves intermediates for insecticides.
该文献描述了公式##STR1##的苯基环丙烷衍生物,其中当n=2时,R.sup.9分别表示卤素、氰基、硝基或可选卤素取代的烷基、烷氧基、烷硫基或烷二氧基基团,n表示0、1、2、3、4或5,R.sup.10表示氢或卤素,Y表示乙酰基、氰基或氨甲酰基。该衍生物是通过将公式##STR2##的苄基膦酸酯与公式##STR3##的甲酰环丙烷衍生物反应,或将公式##STR4##的α-羟基膦酸酯与公式##STR5##的烯化试剂在碱存在下于-70至+150℃的温度下反应制备的。许多中间体是新的,最终产物本身是杀虫剂的中间体。