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    1.
    发明专利
    未知

    公开(公告)号：DE50011721D1

    公开(公告)日：2006-01-05

    申请号：DE50011721

    申请日：2000-04-06

    Applicant: BASF AG

    Inventor： SLANY DR ,  SCHULZ DR ,  SCHAEFER DR ,  ZELLER DR ,  EBEL DR

    IPC: C07D263/08 ,  C07D233/76 ,  C07D263/44

    Abstract: Preparation of hydantoins or aminoacid cyclic anhydrides (I) involves reacting an aldehyde (II) with carbon monoxide and a u or carbamate compound (III) in presence of a transition metal catalyst. Preparation of hydantoins or aminoacid cyclic anhydrides of formula (I) involves reacting an aldehyde RCHO (II) with carbon monoxide and a urea or carbamate compound of formula R3-NH-C(O)-R2 (III) in presence of a transition metal catalyst. X = O or NH; R = alkyl or aryl (both optionally substituted); R3 = H or as defined for R; R2 = group which reacts with the COOH group formed in the reaction under ring-closure to form (I).

    3.
    发明专利
    未知

    公开(公告)号：DE50001027D1

    公开(公告)日：2003-02-13

    申请号：DE50001027

    申请日：2000-02-22

    Applicant: BASF AG

    Inventor： SCHWAB DR ,  SCHULZ DR

    IPC: B01J31/22 ,  C07B37/00 ,  C07B37/04 ,  C07B61/00 ,  C07C6/04 ,  C07C45/72 ,  C07C51/353 ,  C07C55/14 ,  C07C57/13 ,  C07C67/343 ,  C07C67/347 ,  C07C69/593 ,  C07C231/12 ,  C07C253/30 ,  C07F15/00

    Abstract: A homogeneous catalyst containing ruthenium complexes is used in the production of olefinic 6 carbon (C) compounds (I), comprising hex-3-en-1,6-dioic acid, diester or diamide, -dialdehyde, -dinitrile or mixed difunctional compounds of this type, by catalytic auto- or co-metathesis (disproportionation) of the corresponding but-3-ene or 4-alkyl- or (alkyl)aryl-but-3-ene compound(s) (II). A homogeneous catalyst containing ruthenium compounds or complexes is used in the production of olefinic 6 carbon (C) compounds of formula (I), comprising hex-3-en-1,6-dioic acid, diester or diamide, -dialdehyde, -dinitrile or mixed difunctional compounds of this type, by catalytic auto- or co-metathesis (disproportionation) of the corresponding but-3-ene or 4-alkyl- or (alkyl)aryl-but-3-ene compound(s) (II) of formulae (IIA) and/or (IIB), E-CH2-CH=CH-CH2-E (I) R-CH=CH-CH2-E (IIA) R -CH=CH-CH2-E (IIB) E, E = -CHO, -COOH, -COOR , -C(O)NR R or -CN; R, R = hydrogen (H), 1-12 C alkyl, 6-12C aryl or 7-13C alkylaryl; R , R , R = H, 1-12C alkyl or 7-13C aralkyl.

    7.
    发明专利
    未知

    公开(公告)号：DE50003881D1

    公开(公告)日：2003-11-06

    申请号：DE50003881

    申请日：2000-07-10

    Applicant: BASF AG

    Inventor： SCHWAB DR ,  SCHULZ DR ,  HUBER DR

    IPC: C07C6/04 ,  C07B61/00 ,  C07C7/00 ,  C07C7/10 ,  C07C7/148 ,  C07C7/163 ,  C07C7/177 ,  C07C11/06 ,  C07C11/10 ,  C07C11/107 ,  C07C11/113

    Abstract: The production of 5C/6C olefins from a 4C olefin-containing product stream involves disproportionation of 1-, 2- and iso-butene on a Group VIb, VIIb or Sub-Group VIII metal-based catalyst followed by distillation to give a 4-6C fraction which is then distilled to give hexene and methylpentene as a high-boiling fraction. A process (A) for the production of 5C/6C olefins from 4C olefins involves: (a) disproportionation of 1-butene, 2-butene and isobutene in a 4C olefin product stream in presence of a disproportionation catalyst containing Group VIb, VIIb or Sub-Group VIII metal compound(s), to give a mixture of 2-6C olefins and butanes; (b) distillation to give a low-boiling fraction (A) comprising 2-3C olefins or 2-4C olefins and butanes, which is removed, and a high-boiling fraction consisting of 4-6C olefins and butanes; (c) distillation of the high-boiling fraction to give a low-boiling fraction (B; butenes and butanes), a middle fraction (C; pentene and methylbutene) and a high-boiling fraction (D; hexene and methylpentene), and (d) separation of (D) as product, with complete or partial return of fractions (B) and/or (C) to stage (a). An Independent claim is also included for a process (B) for the production of 5C/6C olefins and propene from steam cracker streams or refinery 4C streams, involving: (1) removal of butadiene and acetylenes by optional extraction with a butadiene-selective solvent and subsequent or alternative selective hydrogenation of butadienes and acetylenic impurities in the crude 4C fraction, to give a product containing n-butene and iso-butene; (2) removal of isobutene by reaction of the above product with an alcohol in presence of acid catalyst to give an ether, with separation of the ether and alcohol to give a product containing n-butene and possibly oxygenated impurities, and removal of the ether or re-cleavage for the production of pure isobutene by subsequent distillation with optional separation of entrained 3C, iso-4C and 5C hydrocarbons; (3) removal of oxygenated impurities on suitable adsorbers; and (4) disproportionation of the refined product (II) stream as in stages (a)-(d) above.

    8.
    发明专利
    未知

    公开(公告)号：DE59705748D1

    公开(公告)日：2002-01-24

    申请号：DE59705748

    申请日：1997-09-10

    Applicant: BASF AG

    Inventor： FISCHER DR ,  PINKOS DR ,  RIEBER DR ,  SCHULZ DR ,  TELES DR

    IPC: B01J27/128 ,  B01J27/138 ,  B01J31/02 ,  B01J31/12 ,  C07B61/00 ,  C07C27/02 ,  C07C35/06 ,  C07C67/03 ,  C07C67/04 ,  C07C69/06

    Abstract: The following are claimed; (A) preparation of cyclopentyl formates of formula (II) comprising reacting cyclopentenes of formula (I) with formic acid in presence of an acid catalyst. R1-R3 = H or 1-8C alkyl; (B) production of the corresponding cyclopentanols of formula (III) by reacting (II) with a compound of formula (R4)nXH (IV). X = N (when n = 2) or O (when n = 1); and R4 = H, 1-12C alkyl or 7-12C aralkyl; (C) use of C5 streams from a cracker or refinery, especially with a 2-pentene content of not more than 10 wt%, for the production of optionally substituted cyclopentyl formates and/or cyclopentanols.

    10.
    发明专利
    未知

    公开(公告)号：DE59809789D1

    公开(公告)日：2003-11-06

    申请号：DE59809789

    申请日：1998-10-15

    Applicant: BASF AG

    Inventor： SCHWAB DR ,  SCHULZ DR

    IPC: B01J23/46 ,  C07B61/00 ,  B01J23/36 ,  C07C6/04 ,  C07C11/06

    Abstract: A multistage process for preparing propene, in which the first stage is the reaction of 1-butene, 2-butene and isobutene to give propene, 2-pentene and 2-methyl-2-butene in the presence of a metathesis catalyst comprising at least one compound of a metal of transition group VIb, VIIb or VIII of the Periodic Table of the Elements; the second stage is separation of the propene and 2-pentene/2-methyl-2-butene formed; the third stage is reaction of the 2-pentene and 2-methyl-2-butene with ethehe to give propene, 1-butene and isobutene in the presence of a metathesis catalyst comprising at least one compound of a metal of transition group VIb, VIIb or VIII of the Periodic Table of the Elements; the fourth stage is separation of the propene and 1-butene/isobutene formed and returning the 1-butene and isobutene formed to the first stage.

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