Pyrethroids and their use for controlling pests
    2.
    发明授权
    Pyrethroids and their use for controlling pests 失效
    拟除虫菊酯及其用于防治害虫的用途

    公开(公告)号:US4870100A

    公开(公告)日:1989-09-26

    申请号:US940649

    申请日:1986-12-11

    摘要: 2-benzylfuryl compounds of the general formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are identical or different substituents and are each hydrogen, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, haloalkylthio, alkenyl or haloalkenyl, each of not more than 6 carbon atoms, n being 1, 2 or 3 where R.sup.3 is not hydrogen, and R.sup.4 and R.sup.5 are each hydrogen or alkyl of not more than 6 carbon atoms, R is --CHO or CHR.sup.6 OA, R.sup.6 is hydrogen, cyano, alkyl, alkenyl, haloalkenyl or alkynyl, each of not more than 6 carbon atoms, or carboxamide, and A is either hydrogen or a radical of an acid typical for pyrethroids, with the proviso that R.sup.2 is not hydrogen, chlorine, bromine, methyl or methoxy when R.sup.1 is hydrogen or methyl and R.sup.3 and A are each hydrogen, and furthermore with the proviso that R.sup.1 and R.sup.2 are not methyl when A is a radical of tetramethylcyclopropanecarboxylic acid, and finally with the proviso that R.sup.2 is not methyl, chlorine, bromine or methoxy and R.sup.1 and R.sup.3 are not hydrogen when A is a radical of chrysanthemumic acid, their preparation and their use as intermediates for crop protection agents or as crop protection agents.

    摘要翻译: 通式I(I)的2-苄基呋喃基化合物,其中R 1,R 2和R 3是相同或不同的取代基,并且各自为氢,卤素,烷基,卤代烷基,烷氧基,卤代烷氧基,卤代烷硫基,烯基或卤代烯基, 大于6个碳原子,n为1,2或3,其中R3不是氢,R4和R5各自为氢或不超过6个碳原子的烷基,R为-CHO或CHR6OA,R6为氢,氰基,烷基 ,烯基,卤代烯基或炔基,各自不超过6个碳原子,或甲酰胺,A是氢或拟除虫菊酯典型的酸的基团,条件是R2不是氢,氯,溴,甲基或甲氧基 当R 1为氢或甲基且R 3和A各自为氢时,此外,当A为四甲基环丙烷羧酸基时,R 1和R 2不为甲基,最后条件是R 2不为甲基,氯,溴或 甲氧基,当A是基团时,R 1和R 3不是氢 菊花酸,它们的制备及其作为作物保护剂的中间体或作为作物保护剂的用途。

    Preparation of 5-(2,2,2-trihaloethyl)-dialkyl-tetrahydrofuran-2-ones
    4.
    发明授权
    Preparation of 5-(2,2,2-trihaloethyl)-dialkyl-tetrahydrofuran-2-ones 失效
    制备5-(2,2,2-三卤代乙基) - 二烷基 - 四氢呋喃-2-酮

    公开(公告)号:US4320062A

    公开(公告)日:1982-03-16

    申请号:US178171

    申请日:1980-08-14

    CPC分类号: C07D307/33 C07D307/30

    摘要: Preparation of 5-(2,2,2-trihaloethyl)-4,4-dialkyl-tetrahydro-furan-2-ones of the formula I ##STR1## where R.sup.1 and R.sup.2 are each alkyl of 1 to 4 carbon atoms and X is halogen, by reacting a carboxylic acid amide of the formula II ##STR2## where R.sup.3 and R.sup.4 are each alkyl of 1 to 4 carbon atoms, aralkyl of 7 to 9 carbon atoms or aryl of 6 to 10 carbon atoms or together with the nitrogen on which they are present as substituents form a 5-membered or 6-membered saturated ring which may contain a second hetero-atom, with a carbon tetrahalide of the formula IIICX.sub.4 (III)to give an iminium salt of the formula IV ##STR3## and subsequently hydrolyzing this iminium salt; and novel iminium salts of the formula IV.

    摘要翻译: 制备式I(I)的5-(2,2,2-三卤代乙基)-4,4-二烷基 - 四氢 - 呋喃-2-酮其中R 1和R 2各自为1至4个碳原子的烷基 并且X是卤素,通过使式II的羧酰胺(II)其中R3和R4各自为1至4个碳原子的烷基,7至9个碳原子的芳烷基或6至10个碳原子的芳基 或与它们作为取代基存在的氮一起形成可含有第二杂原子的5元或6元饱和环与式III CX4(III)的四卤化碳,得到 (IV)并随后水解该亚胺鎓盐; 和式IV的新型亚胺盐。

    Preparation of 2,4,6-trimethylbenzoic acid
    7.
    发明授权
    Preparation of 2,4,6-trimethylbenzoic acid 失效
    制备2,4,6-三甲基苯甲酸

    公开(公告)号:US5296636A

    公开(公告)日:1994-03-22

    申请号:US10058

    申请日:1993-01-28

    CPC分类号: C07C45/46 C07C51/29

    摘要: A process for the preparation of 2,4,6-trimethylbenzoic acid of the formula I ##STR1## in which .alpha.-chloro-2,4,6-trimethylacetophenone is reacted with an alkali hydroxide solution and chlorine in the presence of a phase-transfer catalyst at a temperature ranging from 0.degree. to 150.degree. C. and a pressure ranging from 0.01 to 50 bar, and a process for the preparation of 2,4,6-trimethylbenzoic acid I, in which .alpha.-chloro-2.4.6-trimethylacetophenone of the formula II ##STR2## is reacted with 1,3,5-trimethylbenzene and chloroacetyl chloride in the presence of a catalyst at a temperature ranging from 0.degree. to 150.degree. C. and a pressure ranging from 0.01 to 50 bar, the catalyst used being an iron oxide.

    摘要翻译: 制备式I的2,4,6-三甲基苯甲酸(I)的方法,其中α-氯-2,4,6-三甲基苯乙酮与碱金属氢氧化物溶液和氯在存在下反应 在0〜150℃的温度和0.01〜50巴的压力范围内的相转移催化剂,以及制备2,4,6-三甲基苯甲酸I的方法,其中α-氯 - 在催化剂存在下,在0℃至150℃的温度范围内,使式II(II)的2.4.6-三甲基苯乙酮与1,3,5-三甲基苯和氯乙酰氯反应, 使用的催化剂为0.01至50巴,所述催化剂为氧化铁。

    Process for the preparation of a salt of
1-(.gamma.-halopropyl)-1,2,3,4-.beta.-carbolines
    9.
    发明授权
    Process for the preparation of a salt of 1-(.gamma.-halopropyl)-1,2,3,4-.beta.-carbolines 失效
    制备1-(γ-卤代丙基)-1,2,3,4-β-咔啉盐的方法

    公开(公告)号:US4565870A

    公开(公告)日:1986-01-21

    申请号:US519508

    申请日:1983-08-02

    申请人: Rudolf Kropp

    发明人: Rudolf Kropp

    CPC分类号: C07D471/04

    摘要: Salts of 1,2,3,4-tetrahydro-.beta.-carbolines of the formula I ##STR1## where R is hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or trifluoromethyl, x is halogen and n is an integer from 2 to 5, and their preparation are described. The compounds are intermediates for the preparation of pharmacologically active substances.

    摘要翻译: 式I的1,2,3,4-四氢-β-咔啉的盐其中R是氢,卤素,C 1 -C 4 - 烷基,C 1 -C 4 - 烷氧基或三氟甲基,x是卤素和 n为2〜5的整数,对其制备进行说明。 这些化合物是制备药理活性物质的中间体。