-
公开(公告)号：DE50211128D1
公开(公告)日：2007-12-13
申请号：DE50211128
申请日：2002-06-19
Applicant: BASF AG
Inventor： KLEIN DANIELA , WEGNER CHRISTOPH
Abstract: A solution of crude phosphonium salt is passed over a bed of a cation exchange resin in salt form. Subsequently, the cation exchange resin is washed with a solvent, and the phosphonium salt is eluted from the resin with an electrolyte solution, optionally in combination with a polar aprotic solvent. A solution of crude phosphonium salt of formula R-P+R'3X- is passed over a bed of a cation exchange resin in salt form. Subsequently, the cation exchange resin is washed with a solvent and the phosphonium salt is eluted from the resin with an electrolyte solution, optionally in combination with a polar aprotic solvent. The solvent for washing is polar protic or aprotic solvent(s) and/or nonpolar solvent(s). R = 5-40C hydrocarbon radical; R' = 1-4C alkyl or 6-10C aryl; and X = anion equivalent.
-
公开(公告)号：ES2282407T3
公开(公告)日：2007-10-16
申请号：ES02719721
申请日：2002-01-24
Applicant: BASF AG
Inventor： WEGNER CHRISTOPH , JOHN MICHAEL
Abstract: Procedimiento para la isomerización térmica de una mezcla de licopina-todo-E y su isómero Z, en cualquier composición, con aumento de la proporción en todo-E, caracterizado porque la isomerización tiene lugar en un disolvente polar.
-
公开(公告)号：DK1358139T3
公开(公告)日：2007-07-02
申请号：DK02719721
申请日：2002-01-24
Applicant: BASF AG
Inventor： WEGNER CHRISTOPH , JOHN MICHAEL
Abstract: The present invention relates to a process for the thermal isomerization of a mixture of all-E-lycopene and its Z isomers of any composition to increase the proportion of all-E, wherein the isomerization takes place in a polar solvent in which lycopene is only slightly soluble.
-
公开(公告)号：DE19956848A1
公开(公告)日：2001-05-31
申请号：DE19956848
申请日：1999-11-26
Applicant: BASF AG
Inventor： AUWETER HELMUT , BOHN HERIBERT , HASSELWANDER OLIVER , RIEGER JENS , SCHROEDER HARTWIG , WEGNER CHRISTOPH
-
Patent Agency Ranking
公开(公告)号：AT377016T
公开(公告)日：2007-11-15
申请号：AT02013630
申请日：2002-06-19
Applicant: BASF AG
Inventor： KLEIN DANIELA , WEGNER CHRISTOPH
Abstract: A solution of crude phosphonium salt is passed over a bed of a cation exchange resin in salt form. Subsequently, the cation exchange resin is washed with a solvent, and the phosphonium salt is eluted from the resin with an electrolyte solution, optionally in combination with a polar aprotic solvent. A solution of crude phosphonium salt of formula R-P+R'3X- is passed over a bed of a cation exchange resin in salt form. Subsequently, the cation exchange resin is washed with a solvent and the phosphonium salt is eluted from the resin with an electrolyte solution, optionally in combination with a polar aprotic solvent. The solvent for washing is polar protic or aprotic solvent(s) and/or nonpolar solvent(s). R = 5-40C hydrocarbon radical; R' = 1-4C alkyl or 6-10C aryl; and X = anion equivalent.
-
公开(公告)号：DE102005008262A1
公开(公告)日：2006-08-24
申请号：DE102005008262
申请日：2005-02-22
Applicant: BASF AG
Inventor： WEGNER CHRISTOPH
IPC: C07C49/255 , A23L5/40 , A23L27/20 , C09B61/00
Abstract: Preparation of curcumin (I) comprises reacting vanillin (II) with 2,4-pentandione (III) and boron trioxide in the presence of an amine in an inert solvent; partially removing the solvent; hydrolyzing the received raw product through supplementation of water and separating the received (I) from the aqueous phase. Preparation of curcumin (I) comprises reacting vanillin with 2,4-pentandione and boron trioxide in the presence of an amine in an inert solvent, partially removing the solvent, hydrolyzing the received raw product through supplementation of water and separating the received (I) from the aqueous phase.
-
公开(公告)号：ES2186065T3
公开(公告)日：2003-05-01
申请号：ES98114885
申请日：1998-08-07
Applicant: BASF AG
Inventor： WEGNER CHRISTOPH , PAUST JOACHIM , JOHN MICHAEL
IPC: C07C403/24 , C07C11/21 , C07F9/54
Abstract: New and known phosphonium salts are prepared by reacting an alcohol with a triarylphosphine and a sulfonic acid in a solvent. Preparation of phosphonium salts of formula (I) comprises reaction of 3,7,11-trimethyldodeca-1,4,6,10-tetraen-3-ol (II) with a triarylphosphine and a sulfonic acid of formula XH (III) in a solvent. X = Q-SO3 ; Q = CnH2n+1, Ar' or CF3; R = aryl; n = 1, 2, 3 or 4; Ar' = phenyl or toluyl Independent claims are included for: (1) compounds (I) when Q is other than Ar'; and (2) preparation of lycopine by reaction of a compound of formula (I) with 2,7-dimethyl-2,4,6- octatrienedial.
-
公开(公告)号：DE10103708A1
公开(公告)日：2002-08-01
申请号：DE10103708
申请日：2001-01-26
Applicant: BASF AG
Inventor： WEGNER CHRISTOPH , JOHN MICHAEL
Abstract: The invention relates to a method for the thermal isomerization of a mixture of all-E-lycopene and its Z-isomers in any combination, producing an increase in the all-E content. Said method is characterized in that the isomerization takes place in a polar solvent, in which lycopene is poorly soluble.
-
公开(公告)号：DE10009459C1
公开(公告)日：2001-06-07
申请号：DE10009459
申请日：2000-03-02
Applicant: BASF AG
Inventor： WEGNER CHRISTOPH , JOHN MICHAEL
IPC: C07F9/54
Abstract: Preparation of triaryl-3,7,11-trimethyldodeca-2,4,6,10-tetraen-1-yl-p hosphonium salts (I) comprises: (1) reacting 3,7,11-trimethyldodeca-1,4,6,10-tetraen-3-ol with triarylphosphane and a hydrohalic, sulfuric, sulfonic, phosphoric or 1-6C alkanoic acid at -20 to 40 [deg] C to give 3,7,11-trimethyldodeca-1,4,6,10-tetraen-3-yl-phosphonium salt (III); and (2) rearranging (III) at 40-100 [deg] C to form the primary salt (I). Preparation of triaryl-3,7,11-trimethyldodeca-2,4,6-10-tetraen-1-yl-p hosphonium salts of formula (I) comprises: (1) reacting 3,7,11-trimethyldodeca-1,4,6,10-tetraen-3-ol with triarylphosphane and a hydrohalic, sulfuric, sulfonic, phosphoric or 1-6C alkanoic acid at -20 to 40 [deg] C to give 3,7,11-trimethyldodeca-1,4,6,10-tetraen-3-yl-phosphonium salt (III); and (2) rearranging (III) at 40-100 [deg] C to form the primary salt (I). [Image] R : aryl; and X : the anion of hydrohalic, sulfuric, sulfonic, phosphoric or 1-6 C alkanoic acid.
-
-
-
-
-
-
-
-
Search Results
19
records
(took 0.092 seconds)
