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公开(公告)号:JPH1059889A
公开(公告)日:1998-03-03
申请号:JP16712497
申请日:1997-06-24
Applicant: HOECHST AG
Inventor: REGNAT DIETER DR , KLEINER HANS-JERG DR , BAHRMANN HELMUT DR
IPC: B01J31/02 , C07B61/00 , C07C41/09 , C07C41/16 , C07C43/164 , C07C43/20 , C07C43/205
Abstract: PROBLEM TO BE SOLVED: To obtain the subject new compound insensitive to oxygen and/or sulfur and not hydrolyzed under hydroformylation conditions or having complex characteristics. SOLUTION: A compound of formula I [R -R are each independently H, a 1-4C alkyl or alkoxy, a 2-4C alkenyl, etc.; (m), (n) are each independently 0, 1 wherein [(m)+(n)] is 1 or 2; R is not substituted or is phenyl or naphthyl which may be substituted with a 1-4C alkyl, etc.,], e.g. 2,2'-bis(phenoxymethyl)-1,1'-binaphthyl. The compound of formula I is obtained by reacting a compound of formula II (A is OH, etc.,) with a compound of formula III [B is a releasable group: Z (Cl, Br, I, etc.,), when A is OH, or B is OH, when A is the releasable group Z] in a molar ratio of 1:(2-2.2) in the presence of a base and in an organic solvent inactive under the reaction conditions, in the presence (absence) of a phase transfer catalyst and water at 10-100 deg.C. The compound of formula I can exhibit an effect as a hydroformylation catalyst for the production of aldehyde compounds.
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公开(公告)号:JPH107613A
公开(公告)日:1998-01-13
申请号:JP5514697
申请日:1997-03-10
Applicant: HOECHST AG
Inventor: BAHRMANN HELMUT DR , KLEINER HANS-JERG DR , REGNAT DIETER DR
Abstract: PROBLEM TO BE SOLVED: To produce an aldehyde in high yield at a low cost with a long life of a readily reutilizable catalyst by reacting an olefinic compound with carbon monoxide and hydrogen in the presence of a specific catalyst and separating the resultant reactional product from the catalyst. SOLUTION: (C) A 2-20C olefinic compound is reacted with (D) carbon monoxide and (E) hydrogen in the presence (or absence) of (B) a solvent in the presence of (A) a catalyst comprising (A1 ) rhodium and (A2 ) a compound represented by formula I [R is H or a 1-12C alkyl; R is a 1-8C straight-chain alkylene, a 2-4C oxygen-containing alkylene, a group represented by formula II or III or a 3-10C cycloalkylene; R is a 1-25C alkyl or a 6-10C aryl; A is COO or SO3 ; (x), (y), (m) and (n) are as follows: (x)=0, (y)=(m)=(n)=1;(x)=(y)=1 and (m) and (n) are each 1 or 2 or (x) is 1; (y) is 0 and (m) and (n) are each 0 or 1 when R is a group represented by formula II or III] at 50-190 deg.C temperature under 0.1-45MPa pressure and the resultant reactional product is then separated from the component A.
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公开(公告)号:JPH101491A
公开(公告)日:1998-01-06
申请号:JP5515097
申请日:1997-03-10
Applicant: HOECHST AG
Inventor: REGNAT DIETER DR , KLEINER HANS-JERG DR , BAHRMANN HELMUT DR
IPC: C07F9/50
Abstract: PROBLEM TO BE SOLVED: To obtain the subject new diphosphine compound useful as e.g. a stabilizer, a raw material for the Wittig reagent, raw material for metal complex catalysts, by reaction between an amino group-bearing diphenylphosphine oxide, a dihalide and a base under specified conditions. SOLUTION: This compound, which is a new substituted diphenyldiphosphine compound of formula I [R is H or a 1-12C alkyl; R is a 1-8C alkylene, 2-4C oxygen-contg. alkylene, a group of formula II, 3-10C cycloalkylene, etc.; R is a 1-25C alkyl or 6-10C aryl; A is COO or SO3 ; (x)=0 and (y)=1 and (m)=1 and (n)=1, or (x)=1 and (y)=1 and (m)=1 or 2 and (n)=1 or 2, or, when R is a group of formula II, etc., (x)=1 and (y)=0 and (m)=0 or 1 and (n)=0 or 1], is useful as a stabilizer for olefins, a ligand for metal complex catalysts, etc. This new compound is obtained by reaction of a phosphine oxide of formula III or formula IV with a dihalide of the formula X-R -X (X is a halogen) and a base.
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公开(公告)号:DE59307840D1
公开(公告)日:1998-01-29
申请号:DE59307840
申请日:1993-05-14
Applicant: HOECHST AG
Inventor: REGNAT DIETER DR , KLEINER HANS-JERG DR
IPC: C07F9/46
Abstract: Aryl esters of phosphinous acids of the formula (I) … … can be prepared in a simple manner and in high yields by reacting 2,4-di-tert-butylphenyl dihalophosphite with alkyl- or arylmagnesium bromides or chlorides. … Aryl esters of phosphinous acids are used for the preparation of secondary phosphane oxides, which are used in catalyst systems as starting materials for the preparation of phosphane ligands.
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公开(公告)号:DE19625167C1
公开(公告)日:1997-12-11
申请号:DE19625167
申请日:1996-06-24
Applicant: HOECHST AG
Inventor: REGNAT DIETER DR , KLEINER HANS-JERG DR , BAHRMANN HELMUT DR
IPC: C07B61/00 , C07C41/09 , C07C41/16 , C07C43/164 , C07C43/20 , C07C43/205 , B01J31/02 , C07C41/01 , C07C217/76 , C07C213/06
Abstract: 2,2'-Biaryl-bisethers (I) of formula (A; A = -O-(CH2)n-R) are new; in which R , R , R = hydrogen (H), alkyl or alkoxy with 1-4 carbon (C) atoms or 2-4 C alkenyl; or CR -CR = a 6 C ring; m, n = 0 or 1; (m+n) = 1 or 2; R = a phenyl or naphthyl group, optionally substituted by 1-4 C alkyl, amino or a dialkylamino group with a total of 2-8 C.
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公开(公告)号:DE59303357D1
公开(公告)日:1996-09-05
申请号:DE59303357
申请日:1993-10-18
Applicant: HOECHST AG
IPC: C07B39/00 , C07C17/14 , C07C22/04 , C07C67/307 , C07C67/343 , C07C69/65 , C07C69/76 , C07C205/12 , C07C255/50 , C07C257/12 , C07C257/20 , C07C311/05 , C07C311/18 , C07C311/53 , C07D275/04 , C07D275/06 , C07D333/24 , C07D333/60 , C07D333/68 , C07D333/70 , C07D471/04 , C07D487/04 , C07D495/04
Abstract: Aromatic bromomethyl compounds play an important role in the synthesis of active substances. They can be obtained in particularly high purity by free-radical bromination of aromatic methyl compounds in the solvent chlorobenzene.
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公开(公告)号:DE4427836A1
公开(公告)日:1996-02-08
申请号:DE4427836
申请日:1994-08-05
Applicant: HOECHST AG
Inventor: NAUMANN CHRISTOPH DR , REGNAT DIETER DR
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公开(公告)号:DE4419990A1
公开(公告)日:1995-12-14
申请号:DE4419990
申请日:1994-06-08
Applicant: HOECHST AG
Inventor: NAUMANN CHRISTOPH DR , REGNAT DIETER DR
IPC: C07F9/6568 , C07F9/54
Abstract: Novel phosphonium salts of formula (I) in which each CH2 gp. is ortho to the Ar-Ar band are claimed as are also (i) prepn. of (I) by reacting a bi-aryl cpd. of formula (II) with a P. cpd. (III) at 0-200 degrees C opt. in a solvent, opt. with exchange of anion Y by anion X which is a monovalent anion or the equiv. of a mineral acid carboxylic acid, sulphonic acid or alcohol multivalent anion; and (ii) use of (I) as an antistatic agent Ar-Ar = biphenyl, 1-phenyl-naphthyl or 1,1'-bi-naphthyl residue; R = F or 1-8C alkyl or alkoxy, (n = 0-4); R and R = 1-10C alkyl, 5-10C cyclo-aliphatic or Ar (R )m where Ar = phenyl or naphthyl; R3 = F, Cl, CF3, SO3H, SO3M. (M = Li, Nd or K), 2-8C dialkylamino or 1-8C alkyl or alkoxy and m = 0-5; or R and R together with P form a 4-7 membered ring opt. annelated with one or two 6-10C aromatic ring systems; A = H or Si(1-4C alkyl)3; Y = Cl, Br, I or R SO3 (R = F, CF3, CH3, Ph or tolyl); and X = anion as per (i) above.
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公开(公告)号:AT178040T
公开(公告)日:1999-04-15
申请号:AT95103583
申请日:1995-03-13
Applicant: HOECHST AG
Inventor: KLEINER HANS-JERG DR , REGNAT DIETER DR , ROESCHERT HORST DR
Abstract: The prodn. of 2,2'-bis(halomethyl)-1,1'-binaphthyl (I) comprises reacting 2,2'-dimethyl-1,1'-binaphthyl (II) with a halogenating agent (III) at -10 to 120 degrees C. under the action of light with a wavelength of 10 -10 m, in the presence of solvent and opt. a radical generator. Pref. reaction is carried out in inert solvent, with a wt. ratio of (II):(solvent = 1:(3-40), pref. 1:(4-20), esp. pref. 1:(5-15). Pref. solvents are chlorinated benzenes, chlorinated aliphatic hydrocarbons, or esters of 1-6C aliphatic carboxylic acids and 1-4C alkanols, pref. CH2Cl2, chlorobenzene (MCB) and/or dichlorobenzene (DCB), esp. pref. MCB and/or DCB, more esp. pref. MCB. Mole ratio (II):(III) = 1:(1.5-2.5), pref.1:(1.8-2.3), esp. pref. 1:(1.9-2.2). (III) is a chlorinating or brominating agent, pref. chlorine, N-chlorosuccinimide (NCS), bromine, N-bromo-succinimide (NBS), 1,3-dibromo-5,5-dimethylhydantoin or bromo-Meldrum's acid, esp. pref. NCS, bromine or NBS. The light source is a conventional UV emitter, and suitable radical generators are organic peroxides, peroxy-carboxylic acids, hydroperoxides or azo cpds., pref. benzoyl peroxide, benzoyl perhexadecanoate or AIBN
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公开(公告)号:DE19531164A1
公开(公告)日:1997-02-27
申请号:DE19531164
申请日:1995-08-24
Applicant: HOECHST AG
Inventor: KLEINER HANS-JERG DR , REGNAT DIETER DR
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