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：DE19958758A1

公开(公告)日：2001-07-05

申请号：DE19958758

申请日：1999-12-07

Applicant: BASF AG

Inventor： GOETZ ROLAND ,  GOETZ NORBERT ,  KEIL MICHAEL ,  WOLF BERND ,  STEINMETZ ADRIAN ,  STAMM ARMIN ,  HENKELMANN JOCHEM

IPC: C07C51/60 ,  C07C51/58 ,  C07C63/10 ,  C07C63/68

Abstract: Production of o-chloromethylbenzoyl chlorides (I) by reacting benzo-condensed lactones (II) with thionyl chloride is carried out in the presence of catalytic amounts of (a) a catalyst (III) containing boron, selected from boric acid and anhydride, borates, boronic acid and boronic esters, and (b) a quaternary ammonium salt (IV). Production of o-chloromethylbenzoyl chlorides of formula (I) by reacting benzo-condensed lactones of formula (II) with thionyl chloride is carried out in the presence of catalytic amounts of (a) a catalyst (III) containing boron, selected from boric acid and anhydride, borates, boronic acid and boronic esters, and (b) a quaternary ammonium salt (IV). R1-R4 = H, 1-4C alkyl, halogen or CF3.

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：NO310066B1

公开(公告)日：2001-05-14

申请号：NO984227

申请日：1998-09-14

Applicant: BASF AG

Inventor： STEINMETZ ADRIAN ,  TIETZE LUTZ F

IPC: C07B53/00 ,  C07B61/00 ,  C07C29/147 ,  C07C33/12 ,  C07C33/14 ,  C07C33/16 ,  C07C33/36 ,  C07C69/34 ,  C07C69/608 ,  C08B11/08 ,  C08F8/00 ,  C08F12/08 ,  C08F20/56 ,  C08G85/00

公开(公告)号：DE19959066C1

公开(公告)日：2001-05-03

申请号：DE19959066

申请日：1999-12-08

Applicant: BASF AG

Inventor： GOETZ ROLAND ,  STAMM ARMIN ,  GOETZ NORBERT ,  KEIL MICHAEL ,  HENKELMANN JOCHEM ,  WOLF BERND ,  STEINMETZ ADRIAN

IPC: C07C51/60 ,  C07C51/58 ,  C07C63/10 ,  C07C63/68

Abstract: Preparation of o-chloromethyl-benzoyl chloride derivatives (I) by reaction of benzo-fused lactones (phthalides) (II) with thionyl chloride is catalyzed by boron trifluoride dihydrate and a quaternary ammonium salt. The preparation of o-chloromethyl-benzoyl chloride derivatives of formula (I) by reaction of benzo-fused lactones of formula (II) with thionyl chloride is carried out in presence of catalytic amounts of each of boron trifluoride dihydrate and a quaternary ammonium salt. R1-R4 = H, 1-4C alkyl, halo or CF3.

公开(公告)号：AU3438397A

公开(公告)日：1998-02-02

申请号：AU3438397

申请日：1997-06-27

Applicant: BASF AG

Inventor： TIETZE LUTZ F ,  STEINMETZ ADRIAN

IPC: C07D231/22 ,  C07B61/00 ,  C07C69/716 ,  C07C69/72 ,  C07C69/738 ,  C07C251/76 ,  C07C251/78 ,  C07D231/20 ,  C07D231/26