公开(公告)号：ES2212597T3

公开(公告)日：2004-07-16

申请号：ES99938330

申请日：1999-07-23

Applicant: BASF AG

Inventor： PREISS THOMAS ,  HENKELMANN JOCHEM ,  TROFIMOV BORIS ,  MIKHALEVA ALBINA ,  VASILTSOV ALEXANDER M

IPC: C07C249/12 ,  C07B61/00 ,  C07C249/14 ,  C07C251/34 ,  C07C251/38 ,  C07C251/44

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.

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

Inventor： PREISS THOMAS ,  HENKELMANN JOCHEM ,  TROFIMOV BORIS ,  MIKHALEVA ALBINA ,  VASILTSOV M

IPC: C07C249/12 ,  C07B61/00 ,  C07C249/14 ,  C07C251/34 ,  C07C251/38 ,  C07C251/44

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.

公开(公告)号：AT254597T

公开(公告)日：2003-12-15

申请号：AT99938330

申请日：1999-07-23

Applicant: BASF AG

Inventor： PREISS THOMAS ,  HENKELMANN JOCHEM ,  TROFIMOV BORIS ,  MIKHALEVA ALBINA ,  VASILTSOV ALEXANDER M

IPC: C07C249/12 ,  C07B61/00 ,  C07C249/14 ,  C07C251/34 ,  C07C251/38 ,  C07C251/44

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.

公开(公告)号：DE10031755A1

公开(公告)日：2002-01-10

申请号：DE10031755

申请日：2000-06-29

Applicant: BASF AG

Inventor： HENKELMANN JOCHEM ,  BECKER HEIKE ,  AISCAR BAYETO JUAN JOSE ,  TROFIMOV BORIS ,  GUSAROVA NINA K ,  OPARINA LUDMILLA

IPC: C07C41/08 ,  C07B41/04 ,  C07C41/06 ,  C07C43/15

Abstract: Preparation of enol ethers (I) by reacting alcohols (II) with alkynes (IIIA) and/or alkadienes (IIIB) and is carried out in the presence of an alkali alcoholate and a polar aprotic solvent. Preparation of enol ethers of formula (I) by reacting alcohols of formula (II) with alkynes of formula (IIIA) and/or alkadienes of formula (IIIB) of the given formulae is carried out in the presence of an alkali alcoholate and a polar aprotic solvent. R1-R3 = H or an organic group containing carbon; and R4 = optionally substituted alkyl.

公开(公告)号：DE19924159A1

公开(公告)日：2000-11-30

申请号：DE19924159

申请日：1999-05-26

Applicant: BASF AG

Inventor： PREISS THOMAS ,  HENKELMANN JOCHEM ,  TROFIMOV BORIS ,  MIKHALEVA ALBINA ,  VASILTCOV ALEXANDER M

IPC: C07C29/44 ,  C07C41/08 ,  C07D317/12 ,  C07D319/06 ,  C07B37/02 ,  C07C33/02 ,  C07C33/18 ,  C07D317/10

Abstract: Preparation of alkene compounds from acetylene and amino, hydroxyl or carboxyl compounds using a mixed CsF/alkali hydroxide catalyst in the absence of DMSO.