Chloropyridinium chlorides and process for their preparation
    1.
    发明授权
    Chloropyridinium chlorides and process for their preparation 失效
    氯吡啶鎓氯化物及其制备方法

    公开(公告)号:US5675010A

    公开(公告)日:1997-10-07

    申请号:US646671

    申请日:1996-05-08

    IPC分类号: C07D213/20 C07D213/61

    CPC分类号: C07D213/61

    摘要: The present invention relates to new chloropyridinium chlorides of the general formula (I) ##STR1## in which R.sup.1 represents in each case optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkylalkyl, arylalkyl or heteroarylalkyl, R.sup.2 represents optionally substituted alkyl, and R.sup.3 represents hydrogen, halogen or optionally substituted alkyl, to a process for their preparation and to their use for the preparation of chloropyridines.

    摘要翻译: 本发明涉及通式(I)的新的氯代吡啶鎓氯化物,其中R 1在每种情况下均为任选取代的烷基,烯基,炔基,环烷基,环烷基烷基,芳基烷基或杂芳基烷基,R 2表示任选取代的烷基, 并且R 3表示氢,卤素或任选取代的烷基,其制备方法及其用于制备氯吡啶的用途。

    Chloropyridinium chlorides and process for their preparation
    2.
    发明授权
    Chloropyridinium chlorides and process for their preparation 失效
    氯吡啶鎓氯化物及其制备方法

    公开(公告)号:US5541332A

    公开(公告)日:1996-07-30

    申请号:US368179

    申请日:1995-01-04

    IPC分类号: C07D213/20 C07D213/61

    CPC分类号: C07D213/61

    摘要: A process for the preparation of a chloropyridine of the formula ##STR1## which comprises reacting an enamide of the formula ##STR2## with a chlorinating agent in the presence of a di-substituted formamide ##STR3## in which R.sup.4 and R.sup.5 each individually is alkyl or cycloalkyl or together are alkanediyl, at a temperature between about -30.degree. C. and 100.degree. C., thereby to produce a compound of the formula ##STR4## and subjecting said compound to thermal cleavage. Compounds I are novel. Compounds IV are known intermediates for agrochemicals and pharmaceuticals.

    摘要翻译: (IV)的氯吡啶的制备方法,其包括在二取代的甲酰胺(III)的存在下使式(I)的酰胺与氯化剂反应, 其中R 4和R 5各自独立地是烷基或环烷基或一起是烷二基,在约-30℃至100℃的温度下,从而产生下式化合物(I),并使所述化合物 热裂解。 化合物I是新的。 化合物IV是农药和药物的已知中间体。

    Process for preparing 1-aryl-4-carbamoyl-tetrazolinones
    3.
    发明授权
    Process for preparing 1-aryl-4-carbamoyl-tetrazolinones 失效
    1-芳基-4-氨基甲酰基 - 四唑啉酮的制备方法

    公开(公告)号:US5874586A

    公开(公告)日:1999-02-23

    申请号:US18484

    申请日:1998-02-04

    CPC分类号: C07D257/04

    摘要: Herbicidally active 1-aryl-4-carbamoyl-tetrazolinones of the formula (I) ##STR1## in which Ar represents optionally substituted aryl,R.sup.1 represents in each case optionally substituted alkyl, alkenyl, alkinyl or alkoxy, andR.sup.2 represents in each case optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkylalkyl, aryl or arylalkyl, or, together with R.sup.1, represents alkanediyl,are obtained in good yields and at high purity by reacting 1-aryl-tetrazolinones of the formula (II) with phosgene in the presence of a diluent at temperatures of between 0.degree. C. and 150.degree. C. ("first process step"), and reacting the resulting (novel) 1-aryl-4-chlorocarbonyl-tetrazolinones of the formula (III) with amines of the formula (IV) in the presence of a diluent, and, where appropriate, in the presence of a further basic compound, at temperatures of between -20.degree. C. and +100.degree. C. ("second process step"): ##STR2##

    摘要翻译: 式(I)的除草活性1-芳基-4-氨基甲酰基 - 四唑啉酮其中Ar表示任选取代的芳基,R 1表示在任何情况下为任选取代的烷基,烯基,炔基或烷氧基,并且R 2表示 通过使式(II)的1-芳基 - 四唑啉酮与式(II)的1-芳基 - 四唑啉酮反应,可以以良好的收率和高纯度获得任意取代的烷基,烯基,炔基,环烷基,环烷基烷基,芳基或芳基烷基,或者与R1一起代表烷二基, 在0℃至150℃的温度下,在稀释剂存在下进行光气(“第一工艺步骤”),并使所得式(III)的(新)1-芳基-4-氯羰基 - 四唑啉酮与式 (Ⅳ)的胺在稀释剂存在下,在适当的情况下,在另外的碱性化合物的存在下,在-20℃至+ 100℃的温度下进行。(“第二工艺步骤” ): + TR

    Process for preparing 1-aryl-4-carbamoyl-tetrazolinones

    公开(公告)号:US5877323A

    公开(公告)日:1999-03-02

    申请号:US023060

    申请日:1998-02-12

    IPC分类号: A01N43/713 C07D257/04

    CPC分类号: C07D257/04

    摘要: Herbicidally active 1-aryl-4-carbamoyl-tetrazolinones of the formula (I) ##STR1## in which Ar represents optionally substituted aryl,R.sup.1 represents in each case optionally substituted alkyl, alkenyl, alkinyl or alkoxy, andR.sup.2 represents in each case optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkylalkyl, aryl or arylalkyl, or, together with R.sup.1, represents alkanediyl,are obtained in good yields and at high purity by reacting 1-aryl-tetrazolinones of the formula (II) with phosgene in the presence of a diluent at temperatures of between 0.degree. C. and 150.degree. C. ("first process step"), and reacting the resulting (novel) 1-aryl-4-chlorocarbonyl-tetrazolinones of the formula (III) with amines of the formula (IV) in the presence of a diluent, and, where appropriate, in the presence of a further basic compound, at temperatures of between -20.degree. C. and +100.degree. C. ("second process step"): ##STR2##