公开(公告)号：SI1131299T1

公开(公告)日：2004-02-29

申请号：SI9930454

申请日：1999-11-06

Applicant: BASF AG

Inventor： MAYWALD VOLKER ,  STEINMETZ ADRIAN ,  RACK MICHAEL ,  GOETZ NORBERT ,  GOETZ ROLAND ,  HENKELMANN JOCHEM ,  BECKER HEIKE ,  AISCAR BAYETO JUAN JOSE

IPC: C07D231/20

公开(公告)号：DE59907053D1

公开(公告)日：2003-10-23

申请号：DE59907053

申请日：1999-11-06

Applicant: BASF AG

Inventor： MAYWALD VOLKER ,  STEINMETZ ADRIAN ,  RACK MICHAEL ,  GOETZ NORBERT ,  GOETZ ROLAND ,  HENKELMANN JOCHEM ,  BECKER HEIKE ,  AISCAR BAYETO JUAN JOSE

IPC: C07D231/20

Abstract: The invention relates to a process for preparing 1-substituted 5- and/or 3-hydroxypyrazoles of the formulae I and IIin which R1 is C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C3-C6-cycloalkyl or C1-C4-alkoxy, where these groups may be substituted by halogen, C1-C4-alkoxy, phenoxy, C1-C6-alkoxycarbonyl, C1-C6-alkylthiocarbonyl or by a cyclic ring system having 3-14 ring atoms, which comprises reactingan alkyl 3-alkoxyacrylate of the formula IIIin which R2, R3 independently of one another are C1-C6-alkyl or C3-C6-cycloalkyl with a hydrazine of the formula IVin which R1 is as defined abovea) at a pH of 6-11 to give 5-hydroxypyrazoles of the formula I orb) at a pH of 11-14 to give 3-hydroxypyrazoles of the formula II.

公开(公告)号：AU766546B2

公开(公告)日：2003-10-16

申请号：AU1380900

申请日：1999-11-06

Applicant: BASF AG

Inventor： MAYWALD VOLKER ,  STEINMETZ ADRIAN ,  RACK MICHAEL ,  GOTZ NORBERT ,  GOTZ ROLAND ,  HENKELMANN JOCHEM ,  BECKER HEIKE ,  BAYETO JUAN JOSE AISCAR

IPC: C07D231/20

Abstract: The invention relates to a process for preparing 1-substituted 5- and/or 3-hydroxypyrazoles of the formulae I and IIin which R1 is C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C3-C6-cycloalkyl or C1-C4-alkoxy, where these groups may be substituted by halogen, C1-C4-alkoxy, phenoxy, C1-C6-alkoxycarbonyl, C1-C6-alkylthiocarbonyl or by a cyclic ring system having 3-14 ring atoms, which comprises reactingan alkyl 3-alkoxyacrylate of the formula IIIin which R2, R3 independently of one another are C1-C6-alkyl or C3-C6-cycloalkyl with a hydrazine of the formula IVin which R1 is as defined abovea) at a pH of 6-11 to give 5-hydroxypyrazoles of the formula I orb) at a pH of 11-14 to give 3-hydroxypyrazoles of the formula II.

公开(公告)号：AT250037T

公开(公告)日：2003-10-15

申请号：AT99972625

申请日：1999-11-06

Applicant: BASF AG

Inventor： MAYWALD VOLKER ,  STEINMETZ ADRIAN ,  RACK MICHAEL ,  GOETZ NORBERT ,  GOETZ ROLAND ,  HENKELMANN JOCHEM ,  BECKER HEIKE ,  AISCAR BAYETO JUAN JOSE

IPC: C07D231/20

Abstract: The invention relates to a process for preparing 1-substituted 5- and/or 3-hydroxypyrazoles of the formulae I and IIin which R1 is C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C3-C6-cycloalkyl or C1-C4-alkoxy, where these groups may be substituted by halogen, C1-C4-alkoxy, phenoxy, C1-C6-alkoxycarbonyl, C1-C6-alkylthiocarbonyl or by a cyclic ring system having 3-14 ring atoms, which comprises reactingan alkyl 3-alkoxyacrylate of the formula IIIin which R2, R3 independently of one another are C1-C6-alkyl or C3-C6-cycloalkyl with a hydrazine of the formula IVin which R1 is as defined abovea) at a pH of 6-11 to give 5-hydroxypyrazoles of the formula I orb) at a pH of 11-14 to give 3-hydroxypyrazoles of the formula II.

公开(公告)号：AU2003208787A8

公开(公告)日：2003-09-09

申请号：AU2003208787

申请日：2003-02-04

Applicant: BASF AG

Inventor： BECKER HEIKE ,  SCHUMACHER KARL-HEINZ ,  HENKELMANN JOCHEM ,  MEYER HARALD ,  ERHARDT ULRICH ,  JUNG MARTIN

IPC: C08F2/48 ,  C08F2/50 ,  C08F246/00 ,  C08F216/14 ,  C09J133/04

Abstract: New copolymerisable containing 0.01-1 weight percent of aceto- or benzophenone derivatives in polymerized form. New copolymerisable containing 0.01-1 weight percent of aceto- or benzophenone derivatives in polymerized form. The derivatives have the formula (I). R = optionally substituted 1-3C alkyl, 6-10C aryl, or aralkyl with 6-10C in the aryl part and 1-6C in the alkyl part. Independent claim are also included for: (1) a process for the preparation of the copolymerisable by polymerization of a mixture of ethylenically unsaturated compounds (monomers) containing 0.01-10 weight percent (wt.%) of aceto- or benzophenone derivatives of formula (I); and (2) use of the copolymerisable as a copolymerizable photoinitiator.

公开(公告)号：DE10100751A1

公开(公告)日：2002-07-11

申请号：DE10100751

申请日：2001-01-10

Applicant: BASF AG

Inventor： LORENZ RUDOLF ERICH ,  BOETTCHER ARND ,  BECKER HEIKE ,  PINKOS ROLF

IPC: C07B63/04 ,  C07C41/46 ,  C07C43/16 ,  C07D223/10 ,  C08F2/00 ,  C07C41/58 ,  C07C231/22 ,  C07C209/90

Abstract: The color number of alkenyl compounds containing a divalent or trivalent heteroatom in the alpha position to the double bond, is stabilized and lowered by adding an oxidizing agent to the alkenyl compound.

公开(公告)号：HU0104504A2

公开(公告)日：2002-03-28

申请号：HU0104504

申请日：1999-11-06

Applicant: BASF AG

Inventor： AISCAR BAYETO JUAN JOSE ,  BECKER HEIKE ,  GOETZ NORBERT ,  GOETZ ROLAND ,  HENKELMANN JOCHEM ,  MAYWALD VOLKER ,  RACK MICHAEL ,  STEINMETZ ADRIAN

IPC: C07D231/20

Abstract: The invention relates to a process for preparing 1-substituted 5- and/or 3-hydroxypyrazoles of the formulae I and IIin which R1 is C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C3-C6-cycloalkyl or C1-C4-alkoxy, where these groups may be substituted by halogen, C1-C4-alkoxy, phenoxy, C1-C6-alkoxycarbonyl, C1-C6-alkylthiocarbonyl or by a cyclic ring system having 3-14 ring atoms, which comprises reactingan alkyl 3-alkoxyacrylate of the formula IIIin which R2, R3 independently of one another are C1-C6-alkyl or C3-C6-cycloalkyl with a hydrazine of the formula IVin which R1 is as defined abovea) at a pH of 6-11 to give 5-hydroxypyrazoles of the formula I orb) at a pH of 11-14 to give 3-hydroxypyrazoles of the formula II.

公开(公告)号：SK6792001A3

公开(公告)日：2001-11-06

申请号：SK6792001

申请日：1999-11-06

Applicant: BASF AG

Inventor： MAYWALD VOLKER ,  STEINMETZ ADRIAN ,  RACK MICHAEL ,  GOTZ NORBERT ,  GOTZ ROLAND ,  HENKELMANN JOCHEM ,  BECKER HEIKE ,  AISCAR BAYETO JUAN JOSE

IPC: C07D231/20

Abstract: The invention relates to a process for preparing 1-substituted 5- and/or 3-hydroxypyrazoles of the formulae I and IIin which R1 is C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C3-C6-cycloalkyl or C1-C4-alkoxy, where these groups may be substituted by halogen, C1-C4-alkoxy, phenoxy, C1-C6-alkoxycarbonyl, C1-C6-alkylthiocarbonyl or by a cyclic ring system having 3-14 ring atoms, which comprises reactingan alkyl 3-alkoxyacrylate of the formula IIIin which R2, R3 independently of one another are C1-C6-alkyl or C3-C6-cycloalkyl with a hydrazine of the formula IVin which R1 is as defined abovea) at a pH of 6-11 to give 5-hydroxypyrazoles of the formula I orb) at a pH of 11-14 to give 3-hydroxypyrazoles of the formula II.

公开(公告)号：NO20012470D0

公开(公告)日：2001-05-18

申请号：NO20012470

申请日：2001-05-18

Applicant: BASF AG

Inventor： MAYWALD VOLKER ,  STEINMETZ ADRIAN ,  RACK MICHAEL ,  GOETZ NORBERT ,  GOETZ ROLAND ,  HENKELMANN JOCHEM ,  BECKER HEIKE ,  BAYETO JUAN JOSE AISCAR

IPC: C07D231/20 ,  C07D

Abstract: The invention relates to a process for preparing 1-substituted 5- and/or 3-hydroxypyrazoles of the formulae I and IIin which R1 is C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C3-C6-cycloalkyl or C1-C4-alkoxy, where these groups may be substituted by halogen, C1-C4-alkoxy, phenoxy, C1-C6-alkoxycarbonyl, C1-C6-alkylthiocarbonyl or by a cyclic ring system having 3-14 ring atoms, which comprises reactingan alkyl 3-alkoxyacrylate of the formula IIIin which R2, R3 independently of one another are C1-C6-alkyl or C3-C6-cycloalkyl with a hydrazine of the formula IVin which R1 is as defined abovea) at a pH of 6-11 to give 5-hydroxypyrazoles of the formula I orb) at a pH of 11-14 to give 3-hydroxypyrazoles of the formula II.

公开(公告)号：DE19841552A1

公开(公告)日：2000-03-16

申请号：DE19841552

申请日：1998-09-11

Applicant: BASF AG

Inventor： BECKER HEIKE ,  BREUER KLAUS ,  DEMUTH DIRK ,  HIBST HARTMUT ,  TELES JOAQUIM HENRIQUE ,  PREISS THOMAS

IPC: C07C41/08 ,  C07C41/28 ,  C07C41/42 ,  C07C43/14 ,  C07C43/16 ,  C07C43/162 ,  C07C43/166

Abstract: Enol ethers (I) are produced by reacting alcohols (II) and/or acetals or ketals (III) derived from (I) with acetylenes (IV) and/or allenes (V), using a mol ratio of (II + III):(IV/V) = 1 or more and working up the product by distillation with recycling of acetal and alcohol, possibly after catalytic acetalization of excess alcohol with the enol ether. A process for the production of enol ethers of formula (I) by reaction of alcohols (II) and/or acetals or ketals (III) with acetylenes (IV) and/or allenes (V) in the gas-phase at elevated temperature in presence of a heterogeneous catalyst containing zinc or cadmium together with silicon and oxygen, followed by distillation to give (I): R = an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic residue (all optionally with other substituents which do not react with acetylenes or allenes); R = H or organic groups as listed for R , which may combine to form rings; m = 0 or 1. In this process, (a) the reaction is carried out with a mol ratio of (II + III):(IV and/or V) = 1 or more, in such a way that the product leaving the reactor (containing I with excess II and III) is practically free from acetylene or allene, after which (b1) this product is immediately distilled to give an azeotrope comprising (I) and (II) as the top fraction (possibly containing unreacted IV/V), enol ether (I) as intermediate fraction and (III) as bottom product, the top and bottom fractions being returned to the reactor, with the proviso that the reaction conditions and the mol ratio of the reactor feed are such that the mol ratio of (I) to (II) in the reactor product is greater than that in the azeotrope, or (b2) if (I) and (II) do not form an azeotrope, the reactor product is immediately distilled to give (I) as top product and a mixture of (III) and (II) as bottom product which is returned to the reactor, and/or (c) the product from the reactor is subjected to reaction at below 100 deg C on an acetalization catalyst, resulting in reaction of excess (II) with the product (I) to form acetal (III), followed by distillation to give the product (I) and acetal (III) which is returned to the reactor.