公开(公告)号：DE59201043D1

公开(公告)日：1995-02-09

申请号：DE59201043

申请日：1992-02-24

Applicant: HOECHST AG

Inventor： SCHLEGEL GUENTHER DR ,  LACHHEIN STEPHEN DR ,  BERGER HARALD DR

IPC: C07C303/40 ,  C07C311/65

公开(公告)号：DE3629579A1

公开(公告)日：1988-03-03

申请号：DE3629579

申请日：1986-08-30

Applicant: HOECHST AG

Inventor： SIEGEL HERBERT DR ,  WEISS ERWIN DR ,  BERGER HARALD DR

IPC: B01J27/00 ,  B01J27/08 ,  B01J27/138 ,  B01J31/00 ,  B01J31/02 ,  C07B61/00 ,  C07F9/42 ,  C07F9/40

Abstract: The invention relates to a process for the preparation of 2-chloroethanephosphonic dichloride through reaction of a 2-chloroethanephosphonate of the formula +TR or a mixture of the two esters, with thionyl chloride at a temperature of 60 DEG to 160 DEG C. In this reaction, tertiary phosphines, quaternary ammonium or phosphonium salts or alkali metal or alkaline-earth metal halides are employed as catalysts. The thionyl chloride is introduced into the initially introduced ester.

公开(公告)号：DE2248832A1

公开(公告)日：1974-04-25

申请号：DE2248832

申请日：1972-10-05

Applicant: HOECHST AG

Inventor： QUENTIN KARL-ERNST PROF DR ,  WEIL LUDWIG DR ,  BERGER HARALD DR

IPC: C09K3/32 ,  B01D17/02 ,  C02F1/28 ,  C02F1/52 ,  C02F1/54 ,  C02B1/14

公开(公告)号：ES2085523T3

公开(公告)日：1996-06-01

申请号：ES92113468

申请日：1992-08-07

Applicant: HOECHST AG

Inventor： ROSCHER GUNTER DR ,  KLEINER HANS-JERG DR ,  BERGER HARALD DR ,  SCHMIDT MANFRED DR ,  UHMANN RAINER DR ,  BOTTGER DIRK DR

IPC: C07F9/48 ,  C07F9/38 ,  C08G79/02 ,  C08G79/04

Abstract: Process for the purification of propanephosphonic anhydride, characterised in that crude propanephosphonic anhydride which contains impurities, has a mean degree of polymerisation of 20 to 200 and contains less than 0.5% by weight of water, is distilled by being heated to from 230 to 300 DEG C at a pressure of 0.1 to 100 mbar, giving pure propanephosphonic anhydride with a mean degree of polymerisation of 20 to 60.

公开(公告)号：DE4228618A1

公开(公告)日：1994-03-03

申请号：DE4228618

申请日：1992-08-28

Applicant: HOECHST AG

Inventor： BERGER HARALD DR ,  DRAGESSER NORBERT ,  HEUMUELLER RUDOLF DR ,  WAGNER MANFRED ,  SCHAETZER ERICH

IPC: B01J19/10

Abstract: In the reactor for carrying out chemical reactions with ultrasound, at least three sonotrodes (15) are arranged on the bottom (13) of the reactor (10) and at least six sonotrodes (15) are arranged on the casing (14).

公开(公告)号：DE1720667A1

公开(公告)日：1971-07-01

申请号：DEF0052627

申请日：1967-06-07

Applicant: HOECHST AG

Inventor： BERGER HARALD DR ,  BESTIAN HERBERT DR ,  KORBANKA HELMUT DR

IPC: C08F10/00 ,  C08F28/00 ,  C08F15/02

公开(公告)号：DE3773093D1

公开(公告)日：1991-10-24

申请号：DE3773093

申请日：1987-08-26

Applicant: HOECHST AG

Inventor： SIEGEL HERBERT DR ,  WEISS ERWIN DR ,  BERGER HARALD DR

IPC: B01J27/00 ,  B01J27/08 ,  B01J27/138 ,  B01J31/00 ,  B01J31/02 ,  C07B61/00 ,  C07F9/42

Abstract: Prod. ClCH2CH2P(O)PCl2 (I) is obtd. by reacting a 2-chloroalkanephosphonic acid 2-chloroethyl ester of formula (II) or (III) or a mixt. of these esters with SOCl2 thionyl chloride at 60-160 deg.C. The reaction is carried out in the presence of a catalyst contg. at least one of the following substances: tert. phosphines of formula R1-P(R2)-R3 (IV); quat. ammonium or phosphonium salt of formula (V); and alkali or alkaline earth halides. In formulae, R1-R3 = 1-10C alkyl opt. substd. by 1-4C alkoxy, 1-4C alkylthio or 1-4C dialkylamino, or phenyl opt. substd. by halogen, 1-4C alkyl or 1-4C alkoxy; R4 = 1-10C alkyl, or benzyl opt. substd. by halogen, 1-4C alkyl or 1-4C alkoxy; Z = N or P; and Y = anion of a strong acid.

公开(公告)号：DE3765505D1

公开(公告)日：1990-11-15

申请号：DE3765505

申请日：1987-08-26

Applicant: HOECHST AG

Inventor： SIEGEL HERBERT DR ,  WEISS ERWIN DR ,  BERGER HARALD DR

IPC: B01J27/08 ,  B01J27/138 ,  B01J31/00 ,  B01J31/02 ,  C07B61/00 ,  C07F9/42

Abstract: The invention relates to a process for the preparation of vinylphosphonic dichloride, in which a 2-chloroethanephosphonate of the formula or a mixture of the two esters, is reacted with thionyl chloride at a temperature of 60 DEG to 160 DEG C. in the presence of a catalyst which contains tertiary phosphines, quaternary ammonium or phosphonium salts or alkali metal or alkaline-earth metal halides. During this reaction, any thionyl chloride which may be present is removed by distillation subsequent to this reaction, the mixture remaining is heated to 140 DEG to 200 DEG C., and the vinylphosphonic dichloride produced during this is removed by distillation.

公开(公告)号：DE1670990A1

公开(公告)日：1971-02-25

申请号：DE1670990

申请日：1968-02-24

Applicant: HOECHST AG

Inventor： BERGER HARALD DR ,  GUENTHER DIETER DR ,  VOLLMANN HANSJOERG DR

IPC: C07D285/38

公开(公告)号：AT134638T

公开(公告)日：1996-03-15

申请号：AT92113468

申请日：1992-08-07

Applicant: HOECHST AG

Inventor： ROSCHER GUENTER DR ,  KLEINER HANS-JERG DR ,  BERGER HARALD DR ,  SCHMIDT MANFRED DR ,  UHMANN RAINER DR ,  BOETTGER DIRK DR

IPC: C07F9/48 ,  C07F9/38 ,  C08G79/02 ,  C08G79/04

Abstract: Process for the purification of propanephosphonic anhydride, characterised in that crude propanephosphonic anhydride which contains impurities, has a mean degree of polymerisation of 20 to 200 and contains less than 0.5% by weight of water, is distilled by being heated to from 230 to 300 DEG C at a pressure of 0.1 to 100 mbar, giving pure propanephosphonic anhydride with a mean degree of polymerisation of 20 to 60.