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    93.
    发明专利
    未知

    公开(公告)号：DE4407494A1

    公开(公告)日：1995-09-14

    申请号：DE4407494

    申请日：1994-03-07

    Applicant: BASF AG

    Inventor： FISCHER ROLF DR

    IPC: C07C67/32 ,  C07C69/24 ,  C07C69/75 ,  C07C253/30 ,  C07D315/00 ,  C07C69/74 ,  C07C255/03 ,  C07D307/33

    Abstract: Prepn. of C-H cpds. of formula C(R )(R )(Y)(H) (I) comprises reaction of an acid or acyl cpd. of formula C(R )(R )(Y)(Z) (II) in the presence of a carbonate ester and a nitrogen-contg. base. Y = COR , COR , CN, SO2R or phenyl (opt. substd. by inert substits.); R = H or a 1-10C hydrocarbyl residue; R , R = H, 1-20C hydrocarbyl (opt. substd. by inert substits.), heteroaryl, or 1-6C acyl (when Y is COOR ); or R +R = a 1-12C alkylene bridge (which opt. contains O, S or NR as chain members); or Y+R = a gp. (CH2)nOC(O); n = 2-4; Z = COOR or COR .

    Process for the preparation of butenediol monocarboxylates
    94.
    发明专利
    Process for the preparation of butenediol monocarboxylates 未知

    公开(公告)号：DE4429690A1

    公开(公告)日：1995-03-02

    申请号：DE4429690

    申请日：1994-08-22

    Applicant: BASF AG

    Inventor： PINKOS ROLF DR ,  FISCHER ROLF DR

    IPC: C07C67/26 ,  C07C69/12 ,  C07C69/16

    Abstract: Process for the preparation of butenediol monocarboxylates of the formulae I and II in which R and R are identical or different and represent hydrogen or a C1- to C5-alkyl group and in which R represents an aliphatic, cycloaliphatic, araliphatic or aromatic C1- to C15- radical, by reacting vinyl oxiranes of the formula III in which R and R are identical or different and represent hydrogen or a C1- to C5-alkyl group, with aliphatic, aromatic, cycloaliphatic or araliphatic carboxylic acids R COOH, in which R has the abovementioned meaning, in the presence of water.

    96.
    发明专利
    未知

    公开(公告)号：DE4321842A1

    公开(公告)日：1995-01-12

    申请号：DE4321842

    申请日：1993-07-01

    Applicant: BASF AG

    Inventor： FISCHER ROLF DR

    IPC: C07C67/00 ,  C07C69/34 ,  C07C69/46 ,  C07C67/475 ,  C07C211/08 ,  C07C211/05

    Abstract: Process for the preparation of diesters of alpha, omega-dicarboxylic acids of the general formula I in which R , R , R , R and R are hydrogen, C1- to C20-alkyl, C 2- to C20-alkenyl, C2- to C20-alkynyl, C2- to C20-alkoxycarbonyl, nitro, C1- to C20-alkoxy and/or cyano and n is an integer from 1 to 12 characterized in that cycloalkanones of the general formula II in which R , R , R , R , R and n have the abovementioned meanings, are reacted with dimethyl carbonate in the presence of a nitrogen-containing base of the general formula III in which R , R and R are hydrogen, C1- to C20-alkyl, C3- to C8-cycloalkyl or C7- to C20-aralkyl or R and R together are a C2- to C7-alkylene chain which is optionally substituted one to five times by R , at temperatures from 50 to 300 DEG C.

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