公开(公告)号：DE59303252D1

公开(公告)日：1996-08-22

申请号：DE59303252

申请日：1993-11-25

Applicant: HOECHST AG

Inventor： ANGENENDT HEINRICH DR ,  MEIER MICHAEL DR ,  SCHAMS WOLFRAM

IPC: C07C315/02 ,  C07C317/28 ,  C07C323/25 ,  C07C323/41 ,  C09B62/44

Abstract: Method for the preparation of di-(3-(2-chloroethylsulphonyl)-1-propyl)amine hydrochloride by reacting 1 mol of an N,N-diallylcarboxamide of the general formula (1> R-CON(CH2-CH=CH2)2 (1> in which R denotes hydrogen, alkyl(C1-C6) or cycloalkyl(C4-C8), with about 4 to about 8 mol of mercaptoethanol at temperatures of about 0@ to about -70@C in the presence of pure oxygen or a mixture of oxygen with an inert gas or an inert gas mixture, if appropriate in an inert organic solvent, to give the carboxamide of the general formula (II> R-CON(CH2-CH2-CH2-S-CH2-CH2-OH)2 (2), in which R has the abovementioned meaning, hydrolysing this compound with the aqueous solution at about 40@C to about 120@C at a pH of about 10 to about 14 and reacting 1 mol of the di-(3-(2-hydroxyethylthio)-1-propyl)amine thus obtained with about 4 to about 6 mol of gaseous chlorine in about 2 to about 15% strength hydrochloric acid at temperatures from about 20 to about 110@C to give di-(3-(2-chloroethylsulphonyl)-1-propyl)amine hydrochloride.

公开(公告)号：DE4313174A1

公开(公告)日：1994-10-27

申请号：DE4313174

申请日：1993-04-22

Applicant: HOECHST AG

Inventor： SEMLER GUENTHER DR ,  MEIER MICHAEL DR

IPC: C07C227/18 ,  C07C227/22 ,  C07C229/56 ,  C07D265/26

Abstract: Process for the preparation of alkyl 3-chloroanthranilates, by reacting 3-chloroanthranilic acid with 0.8 to 5 parts by weight of phosgene in an inert solvent and reacting the resulting 3-chloroisatoic anhydride with an alkanol, if appropriate in the presence of an esterification catalyst, to give the alkyl 3-chloroanthranilate.

公开(公告)号：DE59004482D1

公开(公告)日：1994-03-17

申请号：DE59004482

申请日：1990-07-04

Applicant: HOECHST AG

Inventor： SPRINGER HARTMUT DR ,  GLEISSNER ROLF DR ,  MEIER MICHAEL DR

IPC: C09B62/513 ,  D06P1/384 ,  D06P3/10 ,  D06P3/66

Abstract: Water-soluble disazo compounds having fibre-reactive dye properties and capable of dyeing carboxamido- and/or hydroxyl-containing materials, in particular fibre materials, such as synthetic polyamide, wool and in particular cellulose fibre materials, in strong fast shades. They conform to the general formula (1) where D is a phenylene radical which may be substituted by 1 or 2 substituents selected from the group consisting of alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, chlorine, carboxyl and sulpho or is a naphthylene radical which may be substituted by a sulfo group; R is a hydrogen atom or an alkyl group of 1 to 4 carbon atoms which may be substituted by 1 or 2 substituents selected from the group consisting of hydroxyl, sulpho, carboxyl, sulphato and phosphato; Y is vinyl or an ethyl group which contains in the beta -position a substituent which is eliminable by means of alkali to form a vinyl group; M is a hydrogen atom or an alkali metal; D is a group of the general formula (2a), (2b) or (2c) where R is a hydrogen atom, cyano, an alkyl group of 1 to 4 carbon atoms or a sulpho-, carboxyl- or sulphato-substituted alkyl group of 1 to 4 carbon atoms or a hydroxyl group, an alkoxy group of 1 to 4 carbon atoms or a sulpho-, carboxyl- or sulphato-substituted alkoxy group of 1 to 4 carbon atoms or a sulpho or carboxyl group or a halogen atom, Y is vinyl or an ethyl group which contains in the beta -position a substituent which is eliminable by means of alkali to form a vinyl group, n is zero or 1 (if zero, this group being hydrogen) and M is as defined above.

公开(公告)号：DE4013688A1

公开(公告)日：1991-10-31

申请号：DE4013688

申请日：1990-04-28

Applicant: HOECHST AG

Inventor： SPRINGER HARTMUT DR ,  GLEISSNER ROLF DR ,  MEIER MICHAEL DR

IPC: C09B62/51 ,  D06P1/384

Abstract: Monoazo compounds having fibre-reactive groups and possessing valuable dye properties make it possible to dye hydroxy and/or carbon amide group-containing materials, especially fibre materials, like cellulose fibres and natural and synthetic polyamide, like wool in fast, true colours. They correspond to general formula (I) in which: D is phenyl substituted by a group of general formula Y -SO2-, where Y has the significance given below, and can be substituted by 1 or 2 susbtituents selected from the group 2 alkyl of 1 to 4 C atoms, 2 alkoxy of 1 to 4 C atoms, 1 carboxy, 1 sulpho, 1 hydroxy, 1 chlorine and 1 bromine, or is a naphthyl, preferably naphth-2-yl, which is substituted by 1 or 2 groups of the general formula Y -SO2, where Y has the significance given below, and may be substituted by 1 or 2 sulpho groups; Y is vinyl or ethyl containing a substituent in the beta position which can be eliminated by alkali with the formulation of the vinyl group; W is amino or hydroxy; -K(-W)- is the divalent radical of a hydroxy or amino group-containing coupling component of the benzole or naphthaline series; Z is a group of general formula -CO-NH-(CH2)3-SO2-Y in which Y has the significance given for Y and may be identical to or different from Y .

公开(公告)号：DE3922503A1

公开(公告)日：1991-01-17

申请号：DE3922503

申请日：1989-07-08

Applicant: HOECHST AG

Inventor： SPRINGER HARTMUT DR ,  GLEISSNER ROLF DR ,  MEIER MICHAEL DR

IPC: C09B62/513 ,  D06P1/384 ,  D06P3/10 ,  D06P3/66

Abstract: Water-soluble disazo compounds having fibre-reactive dye properties and capable of dyeing carboxamido- and/or hydroxyl-containing materials, in particular fibre materials, such as synthetic polyamide, wool and in particular cellulose fibre materials, in strong fast shades. They conform to the general formula (1) where D is a phenylene radical which may be substituted by 1 or 2 substituents selected from the group consisting of alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, chlorine, carboxyl and sulpho or is a naphthylene radical which may be substituted by a sulfo group; R is a hydrogen atom or an alkyl group of 1 to 4 carbon atoms which may be substituted by 1 or 2 substituents selected from the group consisting of hydroxyl, sulpho, carboxyl, sulphato and phosphato; Y is vinyl or an ethyl group which contains in the beta -position a substituent which is eliminable by means of alkali to form a vinyl group; M is a hydrogen atom or an alkali metal; D is a group of the general formula (2a), (2b) or (2c) where R is a hydrogen atom, cyano, an alkyl group of 1 to 4 carbon atoms or a sulpho-, carboxyl- or sulphato-substituted alkyl group of 1 to 4 carbon atoms or a hydroxyl group, an alkoxy group of 1 to 4 carbon atoms or a sulpho-, carboxyl- or sulphato-substituted alkoxy group of 1 to 4 carbon atoms or a sulpho or carboxyl group or a halogen atom, Y is vinyl or an ethyl group which contains in the beta -position a substituent which is eliminable by means of alkali to form a vinyl group, n is zero or 1 (if zero, this group being hydrogen) and M is as defined above.

公开(公告)号：DE4441146A1

公开(公告)日：1996-05-23

申请号：DE4441146

申请日：1994-11-18

Applicant: HOECHST AG

Inventor： MEIER MICHAEL DR ,  VOLK HEINRICH DR ,  NEEB RUDOLF DR

IPC: C07D235/26 ,  C09B29/20

Abstract: Prepn. of 3-hydroxy-N-benzimidazolon-5-yl-naphth-2-amide (I) comprises reacting 5-aminobenzimidazolone (II) and Na2CO3 in N-methylpyrrolidone with a soln. of 3-hydroxy-2-naphthoyl chloride (III) in xylene or toluene; filtration; washing with xylene or toluene; treating the filter cake with water treated with Na2CO3 and steam distn.; filtering the residue by suction, washing and drying.

公开(公告)号：DE59300420D1

公开(公告)日：1995-09-07

申请号：DE59300420

申请日：1993-03-12

Applicant: HOECHST AG

Inventor： MEIER MICHAEL DR ,  KAUTZ HEINZ-GEORG

IPC: C07C201/08 ,  C07C201/12 ,  C07C201/14 ,  C07C205/26

Abstract: Process for the preparation of 2-nitro-3,6-dichlorophenol by sulphonating 2,5-dichlorophenol and subsequently nitrating and desulphonating the product, the nitration being carried out by metering in a nitrating acid composed of 98 to 100% strength nitric acid and 96 to 100% strength sulphuric acid at temperatures of from -15 to 35 DEG C and with a metering time of at least 1 hour.

公开(公告)号：DE4342571A1

公开(公告)日：1995-06-22

申请号：DE4342571

申请日：1993-12-14

Applicant: HOECHST AG

Inventor： CHRISTIDIS YANI DR ,  MEIER MICHAEL DR

IPC: B01J27/16 ,  C07B61/00 ,  C07C231/02 ,  C07C231/10 ,  C07C233/65 ,  C07C235/46 ,  C07C205/57 ,  C07B43/06 ,  C07C201/12 ,  C07C205/58 ,  C07C231/00

公开(公告)号：DE59201322D1

公开(公告)日：1995-03-16

申请号：DE59201322

申请日：1992-06-11

Applicant: HOECHST AG

Inventor： ANGENENDT HEINRICH DR ,  MEIER MICHAEL DR

IPC: C07C315/02 ,  C07C317/28

Abstract: Process for the preparation of 3'-aminopropyl-2-chloroethyl sulphone semisulphate in very good yield and high purity in which allylamine is reacted in a one-pot process with mercaptoethanol in approx. 0.5 to approx. 0.6 mol of dilute sulphuric acid, relative to the allylamine, at temperatures of approx. 0 DEG C to the boiling point of the reaction mixture in the presence of a free-radical initiator, 2.0 to approx. 2.5 mol of chlorine are passed into the reaction mixture obtained at temperatures of approx. 0 DEG C to approx. 100 DEG C, and the resulting mixture is subsequently evaporated to dryness.

公开(公告)号：DE58907177D1

公开(公告)日：1994-04-14

申请号：DE58907177

申请日：1989-11-21

Applicant: HOECHST AG

Inventor： MEIER MICHAEL DR ,  SEMLER GUENTHER DR

IPC: C07D235/26

Abstract: Process for the preparation of benzimidazolones of the formula (1) (1) in which R1 and R2 are identical or different and denote hydrogen or halogen atoms, or alkyl(C1-C4), alkoxy(c1-C4), trifluoromethyl, phenyl, phenoxy or nitro groups, by reacting o-phenylenediamines of the formula (2) (2) in which R1 and R2 have the meaning given, with phosgene in water in the presence of an alkali metal base or alkaline earth metal base or a salt of an alkali metal hydroxide or alkaline earth metal hydroxide and a weakly inorganic or organic acid or a mixture of such salts or a suitable buffer system, at a pH of about 6 to about 12, and at a temperature of about 20 DEG to 100 DEG C.