PROCEDIMIENTO PARA LA OBTENCION DE N-ALQUENILAMIDAS.

    公开(公告)号:ES2251414T3

    公开(公告)日:2006-05-01

    申请号:ES00983292

    申请日:2000-12-12

    Applicant: BASF AG

    Abstract: Procedimiento para la obtención de N- alquenilamidas mediante reacción de las correspondientes NH-amidas con acetilenos en la fase líquida en presencia de compuestos metálicos alcalinos básicos y un cocatalizador, caracterizado porque se emplea como cocatalizador compuestos de las fórmulas generales (Ia) y/o (Ib) (Ia): R1O-(CH2CH2CH2CH2O)n-H (Ib): R1O-(CH2CH2CH2CH2O)n-R2, donde n corresponde a 1, 2 o 3, y R1, R2, independientemente entre sí, significa alquilo con 1 a 6 átomos de carbono o alquenilo con 2 a 6 átomos de carbono, o R1, R2 significan conjuntamente una unidad butileno.

    34.
    发明专利
    未知

    公开(公告)号:ES2209844T3

    公开(公告)日:2004-07-01

    申请号:ES00912443

    申请日:2000-02-02

    Applicant: BASF AG

    Abstract: The invention encompasses a composition of vinyl compounds, comprisinga) at least one polymerizable compound which has at least one O-vinyl group or one N-vinyl group, andb) at least one ammonium salt of the formula (I)where R is NH2, O NH4 , C1-C18-alkyl, C6-C18-cycloalkyl, or C7-C18-alkylcycloalkyl.The invention further relates to the use of an ammonium salt of the formula (I) as additive to polymerizable compounds which have at least one O-vinyl group or one N-vinyl group, and also to a process for inhibiting premature polymerization of compositions which comprise polymerizable compounds which have at least one O-vinyl group or one N-vinyl group, which encompasses adding to the compositions an ammonium salt of the formula (I).

    35.
    发明专利
    未知

    公开(公告)号:DE59907815D1

    公开(公告)日:2003-12-24

    申请号:DE59907815

    申请日:1999-07-23

    Applicant: BASF AG

    Abstract: In the process for the preparation of vinyloxime ethers of the formula Iby reacting an oxime with an alkynewhereR1 and R2 are identical or different and are alkyl or aryl radicals,R3 is hydrogen, an alkyl or aryl radical, andR4 is a radical having the meaning of R3, which may be different than R3, or is a hydroxyalkyl radical,in a superbasic polar organic solvent in the presence of a strong base, the reaction is carried out under conditions such that the resulting vinyloxime ether stays in contact with the other constituents of the reaction mixture for only a short time so that it is unable to decompose or react to give secondary products to a significant extent.

    36.
    发明专利
    未知

    公开(公告)号:ES2178222T3

    公开(公告)日:2002-12-16

    申请号:ES98928192

    申请日:1998-04-07

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP98/02021 Sec. 371 Date Oct. 13, 1999 Sec. 102(e) Date Oct. 13, 1999 PCT Filed Apr. 7, 1998 PCT Pub. No. WO98/46555 PCT Pub. Date Oct. 22, 1998A process for preparing 2-alkynoic esters of the general formula (I),R1-O-CO-C 3BOND C-R2(I)in which R1 and R2 independently are C1-16-alkyl, C6-12-aryl, C7-12-aralkyl or C7-12-alkylaryl radicals, and R2 can also be hydrogen, by reacting a chloroformate of the general formula (II),R1-O-CO-Cl(II)with an alkyne of the general formula (III),R2-C 3BOND C-H(III)is carried out in the presence of a Pt and/or Pd complex which has phosphine ligands and/or phosphite ligands as catalyst.

    38.
    发明专利
    未知

    公开(公告)号:DE59804586D1

    公开(公告)日:2002-08-01

    申请号:DE59804586

    申请日:1998-04-07

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP98/02021 Sec. 371 Date Oct. 13, 1999 Sec. 102(e) Date Oct. 13, 1999 PCT Filed Apr. 7, 1998 PCT Pub. No. WO98/46555 PCT Pub. Date Oct. 22, 1998A process for preparing 2-alkynoic esters of the general formula (I),R1-O-CO-C 3BOND C-R2(I)in which R1 and R2 independently are C1-16-alkyl, C6-12-aryl, C7-12-aralkyl or C7-12-alkylaryl radicals, and R2 can also be hydrogen, by reacting a chloroformate of the general formula (II),R1-O-CO-Cl(II)with an alkyne of the general formula (III),R2-C 3BOND C-H(III)is carried out in the presence of a Pt and/or Pd complex which has phosphine ligands and/or phosphite ligands as catalyst.

Patent Agency Ranking