Process for the production of cycloalkanecarboxylic acids
    1.
    发明授权
    Process for the production of cycloalkanecarboxylic acids 失效
    制备环烷烃羧酸的方法

    公开(公告)号:US4816602A

    公开(公告)日:1989-03-28

    申请号:US57203

    申请日:1987-05-26

    摘要: Process for the production of cycloalkanecarboxylic acids of general Formula I ##STR1## wherein n means the number 1 or 2,R.sub.1 and R.sub.3 are alkyl groups of 1-4 carbon atoms, andR.sub.2 and R.sub.4 symbolize hydrogen atoms or alkyl groups of 1-4 carbon atoms,characterized by reacting a compound of general Formula IIX--CR.sub.1 R.sub.2 --(CH.sub.2).sub.n --CH.sub.2 --CR.sub.3 R.sub.4 --X'(II),whereinn, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 have the meanings given above andX and X' mean a hydroxy group, a chlorine atom, a bromine atom, an alkylsulfonyloxy residue, or an arylsulfonyloxy residue,with 1,1-dichloroethylene;splitting off hydrogen chloride from the thus-obtained compounds of general Formula IIIX--CR.sub.1 R.sub.2 --(CH.sub.2).sub.n --CH.sub.2 --CR.sub.3 R.sub.4 --CH.sub.2 --CCl.sub.2 X (III),wherein n, X, X', R.sub.1, R.sub.2, R.sub.3 and R.sub.4 have the meanings given above; and cyclizing and hydrolyzing, by means of acids, the thus-prepared compounds of general Formula IVX--CR.sub.1 R.sub.2 --(CH.sub.2).sub.n --CH.sub.2 --CR.sub.3 R.sub.4 --CY.dbd.CZX' (IV),whereinn, X, X', R.sub.1, R.sub.2, R.sub.3 and R.sub.4 have the meanings given above, andY and Z jointly represent a carbon-to-carbon bond or mean a hydrogen atom and a chlorine atom.

    摘要翻译: PCT No.PCT / DE86 / 00396 Sec。 371日期:1987年5月26日 102(e)日期1987年5月26日PCT提交1986年9月24日PCT公布。 第WO87 / 02034号公报 日本1987年4月9日。制备通式Ⅰ(I)的环烷烃羧酸的方法其中n表示数1或2,R1和R3是1-4个碳原子的烷基,R2和R4 表示1-4个碳原子的氢原子或烷基,其特征在于使通式II的化合物X-CR1R2-(CH2)n-CH2-CR3R4-X'(Ⅱ),其中n,R1,R2,R3和 R4具有上述含义,X和X'表示1,1-二氯乙烯的羟基,氯原子,溴原子,烷基磺酰氧基或芳基磺酰氧基残基; 从由此得到的通式III X-CR 1 R 2 - (CH 2)n -CH 2 CR 3 R 4 -CH 2 -CCl 2(III)的化合物中分离氯化氢,其中n,X,X',R 1,R 2,R 3和R 4具有 上面给出的含义; 并通过酸环化和水解由此制备的通式IV的X-CR1R2-(CH2)n-CH2-CR3R4-CY = CZX'(Ⅳ)的化合物,其中n,X,X',R 1, R2,R3和R4具有上述含义,Y和Z共同表示碳 - 碳键或表示氢原子和氯原子。

    Process for the preparation of sulphonamide-substituted imidazotriazinones
    6.
    发明授权
    Process for the preparation of sulphonamide-substituted imidazotriazinones 有权
    磺酰胺取代的咪唑并三嗪酮的制备方法

    公开(公告)号:US06777551B2

    公开(公告)日:2004-08-17

    申请号:US10022954

    申请日:2001-12-17

    IPC分类号: C07D48704

    CPC分类号: C07D487/04

    摘要: The present invention relates to a process for the preparation of sulphonamide-substituted imidazotriazinones of the general formula (I) characterized in that compounds of the formula (II) are reacted with sulphuric acid and the products obtained are then reacted with thionyl chloride and converted in situ in an inert solvent using an amine into the compounds according to the invention and, if appropriate, reacted to give the corresponding salts, hydrates or N-oxides.

    摘要翻译: 本发明涉及一种制备通式(I)的磺酰胺取代的咪唑并三嗪酮的方法,其特征在于式(II)化合物与硫酸反应,然后将所得产物与亚硫酰氯反应并转化成 在惰性溶剂中使用胺进入本发明的化合物中,如果合适,反应得到相应的盐,水合物或N-氧化物。