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    12.
    发明专利
    未知

    公开(公告)号：DE3769900D1

    公开(公告)日：1991-06-13

    申请号：DE3769900

    申请日：1987-09-18

    Applicant: BASF AG

    Inventor： WAMBACH LUDWIG DR ,  IRGANG MATTHIAS DR ,  FISCHER MARTIN DR

    IPC: C07D307/36

    Abstract: Furan is prepared by decarbonylation of furfural in the gas phase at elevated temperatures and under from 0.1 to 10 bar in the presence of hydrogen and a catalyst which contains platinum and/or rhodium and contains an alkali metal. The reaction is carried out in the presence of hydrogen. Catalysts which contain platinum and/or rhodium and to which cesium has been added are preferably used.

    16.
    发明专利
    未知

    公开(公告)号：ES2043726T3

    公开(公告)日：1994-01-01

    申请号：ES88108357

    申请日：1988-05-26

    Applicant: BASF AG

    Inventor： WAMBACH LUDWIG DR ,  FISCHER MARTIN DR

    IPC: C07D207/263 ,  C07D207/26 ,  C07D207/267 ,  C07D211/70 ,  C07D211/76

    Abstract: Preparation of substituted lactams Ia to Ic Ia Ib Ic where n is 0 or 1, X is -O-CO-R1, -O-SO2-R1, -CO-R2, -CO-O-R3 or -CO-NR4R5, R1 is a C1-C8-radical of a carboxylic or sulfonic acid, R2 is C1-C8-alkyl, R3 is H or alkyl, aryl or aralkyl of not more than 8 carbon atoms, R4 and R5 are each H or C1-C4-alkyl or together form a 5-membered or 6-membered ring, by reacting a lactam II II with a vinyl compound III CH2=CH-X and a compound IV which forms free radicals to give Ia, and preparation of Ib by hydrolysis of a compound Ia in which X is (-O-CO-R1) or (-O-SO2-R1), and preparation of Ic by thermolysis of Ib or of a compound Ia in which X is (-O-CO-R1) or (-O-SO2-R1), and the novel substituted lactams Ia and Ib where X is (-O-CO-R1) and (-O-SO2-R1).

    17.
    发明专利
    未知

    公开(公告)号：DE3876294D1

    公开(公告)日：1993-01-14

    申请号：DE3876294

    申请日：1988-05-26

    Applicant: BASF AG

    Inventor： FISCHER MARTIN DR ,  WAMBACH LUDWIG DR

    IPC: C07D207/263 ,  C07D207/26 ,  C07D207/267 ,  C07D211/70 ,  C07D211/76

    Abstract: Lactam derivs. of formula (Ia) are new: n=0 or 1; Q'=CH2CH2X' or CH2CH2OH; X'=OCOR or OSO2R1; R1=a 1-8C organic gp. Prodn. of lactam derivs. of formula (I) is effected by (a) reacting a lactam of formula (II) with a vinyl cpd. of formula (III) at 100-200 deg.C in the presence of a radical source to form (I; Q=CH2CH2X); (b) hydrolysing (I; Q=CH2CH2X') to form (I; Q=CH2CH2OH); and (c) heating (I; Q=CH2CH2OH) or (I; Q=CH2CH2X') opt. in the presence of a catalyst, to form (I; Q=CH=CH2): Q=CH2CH2X, CH2CH2OH or CH=CH2; X=OCOR1, OSO2R1, COR2, COOR3 or CONR4R5; R2=1-8C alkyl; R3=H, 1-8C alkyl, 6-8C aryl or 7-8C aralkyl; R4 and R5=H or 1-4C alkyl, or NR4R5 is a 5- or 6-membered ring.

    19.
    发明专利
    未知

    公开(公告)号：DE3718563A1

    公开(公告)日：1988-12-15

    申请号：DE3718563

    申请日：1987-06-03

    Applicant: BASF AG

    Inventor： WAMBACH LUDWIG DR ,  FISCHER MARTIN DR

    IPC: C07D207/263 ,  C07D207/26 ,  C07D207/267 ,  C07D211/70 ,  C07D211/76 ,  C07D223/02 ,  C07D227/087

    Abstract: Preparation of substituted lactams Ia to Ic Ia Ib Ic where n is 0 or 1, X is -O-CO-R1, -O-SO2-R1, -CO-R2, -CO-O-R3 or -CO-NR4R5, R1 is a C1-C8-radical of a carboxylic or sulfonic acid, R2 is C1-C8-alkyl, R3 is H or alkyl, aryl or aralkyl of not more than 8 carbon atoms, R4 and R5 are each H or C1-C4-alkyl or together form a 5-membered or 6-membered ring, by reacting a lactam II II with a vinyl compound III CH2=CH-X and a compound IV which forms free radicals to give Ia, and preparation of Ib by hydrolysis of a compound Ia in which X is (-O-CO-R1) or (-O-SO2-R1), and preparation of Ic by thermolysis of Ib or of a compound Ia in which X is (-O-CO-R1) or (-O-SO2-R1), and the novel substituted lactams Ia and Ib where X is (-O-CO-R1) and (-O-SO2-R1).

    20.
    发明专利
    未知

    公开(公告)号：DE3632255A1

    公开(公告)日：1988-03-31

    申请号：DE3632255

    申请日：1986-09-23

    Applicant: BASF AG

    Inventor： WAMBACH LUDWIG DR ,  IRGANG MATTHIAS DR ,  FISCHER MARTIN DR

    IPC: C07D307/36

    Abstract: Furan is prepared by decarbonylation of furfural in the gas phase at elevated temperatures and under from 0.1 to 10 bar in the presence of hydrogen and a catalyst which contains platinum and/or rhodium and contains an alkali metal. The reaction is carried out in the presence of hydrogen. Catalysts which contain platinum and/or rhodium and to which cesium has been added are preferably used.

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