Pesticides
    12.
    发明授权
    Pesticides 失效
    农药

    公开(公告)号:US4464391A

    公开(公告)日:1984-08-07

    申请号:US172943

    申请日:1980-07-28

    摘要: New insecticides are of formula: ##STR1## wherein R.sup.1 represents hydrogen or a methyl group; R.sup.2 represents hydrogen or a halogeno or lower alkyl group; R.sup.3 represents hydrogen or a halogeno or carbo(lower alkoxy) group which contains at least 2 carbon atoms in the lower alkoxy residue when R.sup.2 represents methyl; with the proviso that (a) R.sup.2 and R.sup.3 each represent hydrogen only when R.sup.1 represents methyl, (b) when R.sup.1 and R.sup.3 each represent hydrogen and R.sup.2 represents alkyl, that alkyl group contains at least 2 carbon atoms and (c) when R.sup.3 represents halogeno, R.sup.2 represents hydrogen or halogeno; and R represents a group which forms insecticidal esters with chrysanthemic acid e.g. 5-benzyl-3-furylmethyl, 3-phenoxybenzyl, .alpha.-cyano-3-phenoxybenzyl. The esters are prepared by forming the ester linkage conventionally or by a Wittig reaction using a 3-formyl- or 3-acetyl-2,2-dimethyl cyclopropane carboxylic acid esterified with the desired residue or by an alkyl group which is subsequently converted to the desired residue.

    摘要翻译: 新的杀虫剂具有下式:其中R 1表示氢或甲基; R2表示氢或卤代或低级烷基; 当R 2表示甲基时,R 3表示氢或低级烷氧基残基中含有至少2个碳原子的卤代或碳(低级烷氧基)基团; 条件是(a)R 2和R 3各自表示氢,当R 1表示甲基时,(b)当R 1和R 3各自表示氢且R 2表示烷基时,该烷基含有至少2个碳原子,和(c)当R 3表示 卤代,R 2表示氢或卤素; R表示与菊酸形成杀虫剂的基团,例如, 5-苄基-3-呋喃基甲基,3-苯氧基苄基,α-氰基-3-苯氧基苄基。 酯通过常规形成酯键或通过Wittig反应制备,使用用所需残基酯化的3-甲酰基或3-乙酰基-2,2-二甲基环丙烷羧酸或通过烷基将其转化为 所需残留物。

    Pesticides
    16.
    发明授权
    Pesticides 失效
    农药

    公开(公告)号:US5248834A

    公开(公告)日:1993-09-28

    申请号:US870112

    申请日:1992-04-17

    摘要: Pesticidal compounds of formula II: R.sub.A CR.sub.3 .dbd.CR.sub.4 CHDR.sub.Bin which formula:R.sub.A represents a group ArCR.sub.1 R.sub.2 - in which Ar represents a phenyl or naphthyl group optionally substituted by one or more halogen, alkoxy, haloalkoxy, methylenedioxy, C.sub.1 -C.sub.6 alkyl or haloalkyl groups;R.sub.1 and R.sub.2 together with the carbon to which they are attached represent a C.sub.3 -C.sub.6 cycloalkyl group optionally substituted by one or more halogen atoms or C.sub.1 -C.sub.6 alkyl groups.R.sub.3 and R.sub.4 which may be identical or differ, represent hydrogen halogen or C.sub.1 -C.sub.6 alkyl groups andR.sub.B represents the residue of an alcohol R.sub.B CHDOH in which D is hydrogen or cyano and of which the [1R, cis] 2,2-dimethyl-3-(2,2-dibromovinyl) cyclopropane carboxylic ester is significantly insecticidal,the configuration of R.sub.A and CHDR.sub.B about the double bond being mutually trans,and processes for the production of compounds I, intermediates, pesticidal compositions comprising I, processes for the production thereof, methods for controlling pests, especially rice pests, in which such compounds are utilized and the use of compounds I for the manufacture of a pesticide.

    摘要翻译: 式I I的杀虫化合物:RACR3 = CR4CHDRB,式中RA表示ArCR1R2基团,其中Ar表示任选被一个或多个卤素,烷氧基,卤代烷氧基,亚甲二氧基,C 1 -C 6烷基或卤代烷基取代的苯基或萘基; R1和R2与它们所连接的碳一起代表任选被一个或多个卤素原子或C 1 -C 6烷基取代的C 3 -C 6环烷基。 可以相同或不同的R 3和R 4表示氢卤素或C 1 -C 6烷基,并且R B表示其中D是氢或氰基的醇RB CHDOH的残基,其中[1R,顺式] 2,2-二甲基 -3-(2,2-二溴乙烯基)环丙烷羧酸酯是显着的杀虫剂,关于双键的RA和CHDRB相互反应的构型,以及生产化合物I,中间体,包含I的杀虫组合物的方法, 其生产方法,其中使用这些化合物的害虫特别是水稻害虫的防治方法以及化合物I用于制造农药的方法。