Preparation of 1,3-dibromo-2,2-dimethyl-propane-1,3-dicarboxylic acid
derivatives
    81.
    发明授权
    Preparation of 1,3-dibromo-2,2-dimethyl-propane-1,3-dicarboxylic acid derivatives 失效
    1,3-二溴-2,2-二甲基 - 丙烷-1,3-二羧酸衍生物的制备

    公开(公告)号:US4321408A

    公开(公告)日:1982-03-23

    申请号:US153297

    申请日:1980-05-27

    CPC分类号: C07C55/40

    摘要: In the preparation of a 1,3-dibromo-2,2-dimethyl-propane-1,3-dicarboxylic acid derivative of the formula ##STR1## in which R.sup.1 and R.sup.2 each independently is chlorine or alkoxy, by reacting a 2,2-dimethyl-propane-1,3-dicarboxylic acid derivative of the formula ##STR2## in which R.sup.3 is hydroxy or alkoxy andR.sup.4 is hydroxy, orR.sup.3 and R.sup.4 together are an anhydride oxygen atom,with an acid halide, then reacting the product with bromine at a temperature between 0.degree. and 150.degree. C. to form a 1,3-dibromo-2,2-dimethyl-propane-1,3-dicarboxylic acid chloride and optionally reacting such acid chloride with an alkanol, the improvement which comprises employing an acid chloride as the acid halide, e.g. phosphorus pentachloride, phosphorus oxychloride, phosphorus trichloride, thionyl chloride or phosgene. Compounds of the formula ##STR3## are new. The products are intermediates for making insecticides.

    摘要翻译: 在制备其中R 1和R 2各自独立地为氯或烷氧基的式“IMAGE”的1,3-二溴-2,2-二甲基 - 丙烷-1,3-二羧酸衍生物中,通过使2,2 其中R3是羟基或烷氧基,R4是羟基或R3和R4一起是酸酐氧原子的式“IMAGE”的二甲基丙烷-1,3-二羧酸衍生物与酰卤反应,然后使产物 用溴在0℃至150℃之间的温度下反应形成1,3-二溴-2,2-二甲基 - 丙烷-1,3-二羧酰氯,并任选地使该酰基氯与烷醇反应,其改进是 包括使用酰氯作为酰卤,例如 五氯化磷,三氯氧化磷,三氯化磷,亚硫酰氯或光气。 式“IMAGE”的化合物是新的。 该产品是制造杀虫剂的中间体。

    Preparation of 4-fluoro-3-phenoxy-toluene
    82.
    发明授权
    Preparation of 4-fluoro-3-phenoxy-toluene 失效
    制备4-氟-3-苯氧基 - 甲苯

    公开(公告)号:US4316994A

    公开(公告)日:1982-02-23

    申请号:US170194

    申请日:1980-07-18

    CPC分类号: C07C43/29

    摘要: A process for the preparation of 4-fluoro-3-phenoxytoluene of the formula ##STR1## comprising reacting 3-bromo-4-fluoro-toluene of the formula ##STR2## with an alkali metal or alkaline earth metal phenolate in the presence of copper as catalyst and in the presence if isoquinoline as diluent at a temperature between about 100.degree. and 200.degree. C. Advantageously the reaction is effected in the presence of about 0.9 to 1.5 mols of potassium or magnesium carbonate, about 1 to 1.2 mols of the phenolate, about 1 to 50 g of copper, copper(I) oxide, copper(I) chloride or copper (I) bromide as catalyst and about 150 to 1,500 ml of isoquinoline per mol of 3-bromo-4-fluoro-toluene.

    摘要翻译: 制备下式的4-氟-3-苯氧基甲苯的方法包括使式IMA的3-溴-4-氟 - 甲苯与碱金属或碱土金属酚盐在铜的存在下反应 作为催化剂,并且在约100至200℃的温度下存在异喹啉作为稀释剂的情况下。有利地,反应在约0.9至1.5摩尔的碳酸钾或碳酸镁存在下进行,约1至1.2摩尔的酚盐 ,约1至50g铜,氧化铜(I),氯化铜(I)或溴化铜(I)作为催化剂,每摩尔3-溴-4-氟 - 甲苯约150至1,500ml异喹啉。

    Combating arthropods with
O-alkyl-O-(6-dialkyl-carbamoyloxy-pyrimidin-4-yl)-(thiono)(thiol)-phosph
oric (phosphonic) acid esters and ester-amides
    88.
    发明授权
    Combating arthropods with O-alkyl-O-(6-dialkyl-carbamoyloxy-pyrimidin-4-yl)-(thiono)(thiol)-phosph oric (phosphonic) acid esters and ester-amides 失效
    将节肢动物与O-烷基-O-(6-二烷基 - 氨基甲酰氧基 - 嘧啶-4-基) - (硫醇)(硫醇) - 磷酸(膦酸)酯和酯 - 酰胺

    公开(公告)号:US4188383A

    公开(公告)日:1980-02-12

    申请号:US879423

    申请日:1978-02-21

    CPC分类号: A01N57/08 C07F9/65125

    摘要: O-Alkyl-O-(6-dialkylcarbamoyloxy-pyrimidin-4-yl)-(thiono)(thiol)-phosphoric (phosphonic) acid esters and esteramides of the formula ##STR1## in which R is alkyl,R.sup.1 is alkoxy, alkylthio, alkylamino, alkyl or phenyl,R.sup.2 is hydrogen, alkyl, alkoxy, alkylthio, alkylamino or phenyl,R.sup.3 and R.sup.4 each independently is alkyl,R.sup.5 is hydrogen, alkyl or halogen, andX is oxygen or sulphur,which possess arthropodicidal properties.

    摘要翻译: O-烷基-O-(6-二烷基氨基甲酰氧基 - 嘧啶-4-基) - (硫醇)(硫醇) - 膦酸酯和酰胺,其中R是烷基,R 1是烷氧基, 烷硫基,烷基氨基,烷基或苯基,R 2是氢,烷基,烷氧基,烷硫基,烷基氨基或苯基,R 3和R 4各自独立地是烷基,R 5是氢,烷基或卤素,X是具有节肢杀虫性质的氧或硫。