Hydroformylation
    14.
    发明授权
    Hydroformylation 失效
    加氢甲酰化

    公开(公告)号:US5041684A

    公开(公告)日:1991-08-20

    申请号:US557065

    申请日:1990-07-25

    CPC分类号: C07C45/50

    摘要: Olefinically unsaturated compounds are hydroformylated in an organic reaction medium with the aid of rhodium complex catalysts which are soluble in the reaction medium by performing the reaction in the presence of water-insoluble rhodium complex catalysts and also in the presence of arylthiols of the general formula IAr--SH Iwhere Ar is substituted or unsubstituted aryl.

    摘要翻译: 借助于可溶于反应介质的铑配合物催化剂,在有机反应介质中,在不溶性铑配合物催化剂的存在下进行反应,并且在通式I的芳基硫醇存在下,将烯属不饱和化合物加氢甲酰化 Ar-SH I,其中Ar是取代或未取代的芳基。

    Preparation of 2(5H)-furanones
    16.
    发明授权
    Preparation of 2(5H)-furanones 失效
    2(5H) - 呋喃酮的制备

    公开(公告)号:US4853473A

    公开(公告)日:1989-08-01

    申请号:US201050

    申请日:1988-06-01

    IPC分类号: C07D315/00

    CPC分类号: C07D315/00

    摘要: 2(5H)-furanones I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.5 - or C.sub.6 -cycloalkyl, C.sub.7 -C.sub.12 -aralkyl or aryl, are prepared by heating a 3-formylcarboxylate or 3-formylcarboxylic acid II ##STR2## where R.sup.3 is hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.5 - or C.sub.6 -cycloalkyl, C.sub.7 -C.sub.12 -aralkyl or aryl, to 100.degree.-450.degree. C. in the presence of an acidic catalyst.

    摘要翻译: 2(5H) - 呋喃酮I(I)其中R1和R2各自为氢,C1-C6烷基,C5-或C6-环烷基,C7-C12-芳烷基或芳基,通过加热3-甲酰基羧酸酯 或其中R 3为氢,C 1 -C 12 - 烷基,C 5 - 或C 6 - 环烷基,C 7 -C 12 - 芳烷基或芳基的3-甲酰基羧酸II(II)在100-450℃存在下, 酸性催化剂。