Preparation of a mixture of an alkyl 3-chloroanthranilate and an alkyl
6-chloroanthranilate
    1.
    发明授权
    Preparation of a mixture of an alkyl 3-chloroanthranilate and an alkyl 6-chloroanthranilate 失效
    制备3-氯邻氨基苯甲酸烷基酯和6-氯邻氨基苯甲酸烷基酯的混合物

    公开(公告)号:US4306074A

    公开(公告)日:1981-12-15

    申请号:US153576

    申请日:1980-05-27

    CPC分类号: C07D209/48 C07D265/26

    摘要: A mixture of an alkyl 3-chloroanthranilate and an alkyl 6-chloroanthranilate, with a particular molar ratio of the components, is prepared by (a) reacting 3-chlorophthalic anhydride with ammonia, an alkali metal hydroxide and an alkali metal hypochlorite or (b) converting 3-chlorophthalic anhydride to 3-chlorophthalimide followed by reaction of the latter with an alkali metal hydroxide and an alkali metal hypochlorite, and, finally, esterifying the mixture of 5-chloroisatoic anhydride and 8-chloroisatoic anhydride, obtained by method (a) or method (b), with an alkanol.The compounds obtainable by the process of the invention are valuable starting materials for the preparation of dyes, crop protection agents and scents.

    摘要翻译: 通过(a)使3-氯邻苯二甲酸酐与氨,碱金属氢氧化物和碱金属次氯酸盐或(b)反应,制备具有特定摩尔比的组分的3-氯邻氨基苯甲酸烷基酯和6-氯氨基甲酸烷基酯的混合物 )将3-氯邻苯二甲酸酐转化为3-氯邻苯二甲酰亚胺,随后将其与碱金属氢氧化物和碱金属次氯酸盐反应,最后酯化通过方法(a)得到的5-氯代酸酐和8-氯代酸酐的混合物 )或方法(b)与链烷醇反应。 通过本发明的方法可获得的化合物是用于制备染料,作物保护剂和香料的有价值的起始材料。

    Preparation of
erythio-.alpha.piperid-2-yl-2,8-bis-trifluoro-methyl)-quinolin-4-yl-meth
anol
    4.
    发明授权
    Preparation of erythio-.alpha.piperid-2-yl-2,8-bis-trifluoro-methyl)-quinolin-4-yl-meth anol 失效
    制备红硫-α-哌啶-2-基-2,8-双 - 三氟 - 甲基) - 喹啉-4-基 - 甲醇

    公开(公告)号:US4327215A

    公开(公告)日:1982-04-27

    申请号:US193473

    申请日:1980-10-03

    CPC分类号: C07D215/50 C07D209/38

    摘要: The present invention relates to a simplified process, which avoids organo-lithium intermediates, for the preparation of erythro-.alpha.-piperid-2-yl-2,8-bis-(trifluoromethyl)-quinolin-4-yl-methanol, wherein 2,8-bis-(trifluoromethyl)-quinoline-4-carboxylic acid or a salt thereof is reacted with a pyrid-2-yl-magnesium halide to give pyrid-2-yl-2,8-bis-(trifluoromethyl)-quinolin-4-yl ketone in the manner of a Grignard reaction, and this product is hydrogenated, in a conventional manner, to give erythro-.alpha.-piperid-2-yl-2,8-bis-(trifluoromethyl)-quinolin-4-yl-methanol.

    摘要翻译: 本发明涉及一种避免有机锂中间体用于制备赤式α-哌啶-2-基-2,8-双(三氟甲基) - 喹啉-4-基 - 甲醇的简化方法,其中2 ,8-双(三氟甲基) - 喹啉-4-羧酸或其盐与吡啶-2-基 - 卤化镁反应,得到吡啶-2-基-2,8-双(三氟甲基) - 喹啉 -4-基酮以格利雅反应的方式,以常规方式将该产物氢化,得到红-β-哌啶-2-基-2,8-双 - (三氟甲基) - 喹啉-4-基 - 甲醇。

    Preparation of fluorinated anthranilic acid and anthranilonitrile
    5.
    发明授权
    Preparation of fluorinated anthranilic acid and anthranilonitrile 失效
    氟化邻氨基苯甲酸和邻氨基苯甲腈的制备

    公开(公告)号:US4359428A

    公开(公告)日:1982-11-16

    申请号:US318588

    申请日:1981-11-05

    CPC分类号: C07C255/58

    摘要: Fluorinated anthranilic acid and anthranilonitrile, and a novel process for their preparation by reacting 2,6-difluorobenzonitrile with ammonia and, if the acid is required, hydrolyzing the resulting 6-fluoroanthranilonitrile with a basic compound.The two novel end products are valuable intermediates for the preparation of compounds which are useful for controlling various animal pests and plant pests.

    摘要翻译: 氟化邻氨基苯甲酸和邻氨基苯甲腈,以及通过使2,6-二氟苄腈与氨反应制备的新方法,如果需要酸,用碱性化合物水解所得6-氟邻氨基苯腈。 两种新型终产物是制备可用于控制各种动物害虫和植物害虫的化合物的有价值的中间体。

    Process for the preparation of .alpha.,.beta.-dihaloalkyl isocyanates
    6.
    发明授权
    Process for the preparation of .alpha.,.beta.-dihaloalkyl isocyanates 失效
    制备α,β-二卤代烷基异氰酸酯的方法

    公开(公告)号:US4257974A

    公开(公告)日:1981-03-24

    申请号:US85962

    申请日:1979-10-18

    CPC分类号: C07C263/16 C07C2101/14

    摘要: .alpha.,.beta.-Dihaloalkyl isocyanates and a process for the preparation of such compounds by reacting .alpha.,.beta.-unsaturated alkyl isocyanates with halogen in the presence of an organic solvent which is inert under the reaction conditions, at from -35.degree. to +90.degree. C. The .alpha.,.beta.-dihaloalkyl isocyanates thus obtainable correspond to the formula ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are identical or different and each is hydrogen, a saturated aliphatic radical of 1 to 10 carbon atoms, a cycloaliphatic radical of 3 to 12 carbon atoms, an araliphatic radical of 7 to 11 carbon atoms or an aromatic radical of 6 to 10 carbon atoms, or R.sup.1 and R.sup.2 together with the carbon atom on which they are present as substituents are cycloalkyl of 3 to 7 ring members, and X is halogen. The compounds are valuable intermediates for the preparation of dyes, surface-coating intermediates, crop protection agents and drugs.

    摘要翻译: α,β-二卤代烷基异氰酸酯和通过使α,β-不饱和烷基异氰酸酯与卤素在有效溶剂存在下反应来制备这些化合物的方法,所述有机溶剂在-35℃至+ 90℃的反应条件下是惰性的 C.由此获得的α,β-二卤代烷基异氰酸酯对应于式Ia,其中R 1,R 2和R 3相同或不同,各自为氢,1至10个碳原子的饱和脂族基团,3个脂环族基团 碳原子数为7〜11的芳脂族基团或6〜10个碳原子的芳香族基团,或者R1,R2与它们作为取代基存在的碳原子一起形成3〜7个环成员的环烷基, X为卤素。 这些化合物是制备染料,表面涂层中间体,作物保护剂和药物的有价值的中间体。