Process for the preparation of 1,4-3,6-dianhydro-hexitols
    1.
    发明授权
    Process for the preparation of 1,4-3,6-dianhydro-hexitols 失效
    制备1,4-3,6-二氢 - 己醇的方法

    公开(公告)号:US4408061A

    公开(公告)日:1983-10-04

    申请号:US357353

    申请日:1982-03-11

    IPC分类号: C07D493/04

    CPC分类号: C07D493/04

    摘要: A process for the preparation of 1,4-3,6-dianhydro-hexitols from hexitols by elimination of water is described, characterized in that gaseous hydrogen halide is used as the acid dehydrating agent optionally with carboxylic acids, carboxylic acid halides and/or carboxylic acid anhydrides in quantities of up to 600 mol percent, based on the hexitols, as cocatalysts. The reaction is carried out in the absence of water and organic solvents, preferably using gaseous hydrogen chloride, temperatures of up to 300.degree. C. and pressures of up to 250 bar. Very high yields are obtained after working up of the product by distillation or extraction.

    摘要翻译: 描述了通过除去水从己醇制备1,4-3,6-二脱氢 - 己醇的方法,其特征在于,使用气态卤化氢作为酸脱水剂,任选地与羧酸,羧酸卤化物和/或 羧酸酐,其量为至多600摩尔%,基于己二醇,作为助催化剂。 反应在没有水和有机溶剂的情况下进行,优选使用气态氯化氢,温度高达300℃,压力高达250巴。 通过蒸馏或萃取处理产物后可获得非常高的产率。

    Polyamines
    2.
    发明授权
    Polyamines 失效
    多胺

    公开(公告)号:US4642344A

    公开(公告)日:1987-02-10

    申请号:US690445

    申请日:1985-01-11

    IPC分类号: C07D251/70

    CPC分类号: C07D251/70

    摘要: The present invention relates to new polyamines corresponding to the formula ##STR1## in which R.sup.1 represents an alkyl, cycloalkyl or aryl group andR.sup.2 represents hydrogen or an alkyl group.The present invention is also directed to a process for the preparation of these amines by hydrogenating the corresponding trinitriles.

    摘要翻译: 本发明涉及对应于式“IMAGE”的新的多胺,其中R 1表示烷基,环烷基或芳基,R 2表示氢或烷基。 本发明还涉及通过氢化相应的三腈来制备这些胺的方法。

    .alpha.-trifluoromethyl-substituted, saturated bicyclic amines
    6.
    发明授权
    .alpha.-trifluoromethyl-substituted, saturated bicyclic amines 失效
    (ALPHA) - 三氟甲磺酸取代的饱和双酚A

    公开(公告)号:US5204471A

    公开(公告)日:1993-04-20

    申请号:US920217

    申请日:1992-07-24

    摘要: New .alpha.-trifluoromethyl-substituted, saturated bicyclic amines of the formula ##STR1## in which R.sup.1 represents hydrogen, C.sub.1 - to C.sub.8 -alkyl or C.sub.1 - to C.sub.8 -alkoxy,R.sup.2 represents hydrogen or C.sub.1 - to C.sub.4 -alkyl,n represents zero or 1,A represents ##STR2## B represents NH or ##STR3## and C represents ##STR4## in which A, B and C are either each different from one another or C represents ##STR5## and one of A and B represents NH and the other represents ##STR6## and R.sup.3 denotes hydrogen or C.sub.1 - to C.sub.4 -alkyl and the ring D is saturated.

    摘要翻译: 新的α-三氟甲基取代的具有式(I)的饱和二环胺,其中R 1表示氢,C 1至C 8烷基或C 1至C 8 - 烷氧基,R 2表示氢或C 1至C 4 - 烷基, n表示0或1,A表示 B表示NH或,C表示,其中A,B和C各自彼此不同或C表示,A和B之一 表示NH,另一个表示,R 3表示氢或C 1〜C 4 - 烷基,环D饱和。

    Process for the hydrogenation of .alpha.,.beta.-unsaturated ketones
    7.
    发明授权
    Process for the hydrogenation of .alpha.,.beta.-unsaturated ketones 失效
    α,β-不饱和酮氢化的方法

    公开(公告)号:US4940819A

    公开(公告)日:1990-07-10

    申请号:US375763

    申请日:1989-07-05

    摘要: The catalytic hydrogenation of .alpha.,.beta.-unsaturated ketones of the formulaR.sup.1 --CH.dbd.CH--CO--R.sup.2,in whichR.sup.1 and R.sup.2 independently of one another represent straight-chain or branched alkyl, hydroxy-alkyl, alkenyl, cycloalkyl, cycloalkenyl, aralkyl or aryl, where at least one of the radicals R.sup.1 and R.sup.2 is monosubstituted to trisubstituted by halogen,can be carried out on a Ni-containing catalyst and in the presence of an organic sulphur compound of the formulaR.sup.3 --S(.dbd.O).sub.n --R.sup.4in whichR.sup.3 and R.sup.4 independently of one another denote straight-chain or branched alkyl, hydroxy-alkyl, carboxyalkyl or phenyl, and furthermoreR.sup.3 and R.sup.4 may together represent --CH.dbd.CH--CH.dbd.CH--, --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.5 --, --(CH.sub.2).sub.2 --S--(CH.sub.2).sub.2 -- or --(CH.sub.2).sub.2 --O--(CH.sub.2).sub.2 --,R.sup.4 may additionally denote hydrogen or CO--C.sub.1 -C.sub.12 -alkyl and n assumes the value 0 or 1.

    摘要翻译: 式R1-CH = CH-CO-R2的α,β-不饱和酮的催化氢化,其中R 1和R 2彼此独立地表示直链或支链烷基,羟基 - 烷基,烯基,环烷基,环烯基, 芳烷基或芳基,其中基团R 1和R 2中的至少一个被卤素单取代至三取代,可以在含Ni催化剂上进行,并且在式R 3 -S(= O)的有机硫化合物存在下, 其中R 3和R 4彼此独立地表示直链或支链烷基,羟基 - 烷基,羧基烷基或苯基,此外R3和R4可以一起表示-CH = CH-CH = CH-, - (CH 2) 4-, - (CH 2)5 - , - (CH 2)2 -S-(CH 2)2 - 或 - (CH 2)2 -O-(CH 2)2 - ,R 4可另外表示氢或CO-C 1 -C 12 - 烷基,n为0或1。