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ES458768A1 - Procedimiento para separar 4,4'-diaminodifenilmetano. - Google Patents

Procedimiento para separar 4,4'-diaminodifenilmetano.

Info

Publication number
ES458768A1
ES458768A1 ES458768A ES458768A ES458768A1 ES 458768 A1 ES458768 A1 ES 458768A1 ES 458768 A ES458768 A ES 458768A ES 458768 A ES458768 A ES 458768A ES 458768 A1 ES458768 A1 ES 458768A1
Authority
ES
Spain
Prior art keywords
isomer
mixture
diamines
diaminodiphenylmethane
dihydrochloride
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES458768A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pharmacia and Upjohn Co
Original Assignee
Upjohn Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Upjohn Co filed Critical Upjohn Co
Publication of ES458768A1 publication Critical patent/ES458768A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/68—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton
    • C07C209/78—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton from carbonyl compounds, e.g. from formaldehyde, and amines having amino groups bound to carbon atoms of six-membered aromatic rings, with formation of methylene-diarylamines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Procedimiento para separar 4,4¿-diaminodifenilmetano, en forma substancialmente pura de mezclas del mismo con el isómero 2,4¿ correspondiente, caracterizado porque consiste en: calentar en presencia de un solvente orgánico inerte una mezcla de (a) el diclorhidrato de dicha mezcla de isómeros
ES458768A 1976-06-04 1977-05-13 Procedimiento para separar 4,4'-diaminodifenilmetano. Expired ES458768A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/693,081 US4201722A (en) 1976-06-04 1976-06-04 Process for separating 4,4'-diaminodiphenylmethane

Publications (1)

Publication Number Publication Date
ES458768A1 true ES458768A1 (es) 1978-03-16

Family

ID=24783232

Family Applications (1)

Application Number Title Priority Date Filing Date
ES458768A Expired ES458768A1 (es) 1976-06-04 1977-05-13 Procedimiento para separar 4,4'-diaminodifenilmetano.

Country Status (13)

Country Link
US (1) US4201722A (es)
JP (1) JPS5948819B2 (es)
BE (1) BE855402A (es)
BR (1) BR7703390A (es)
DD (1) DD130930A5 (es)
DE (1) DE2719996C2 (es)
ES (1) ES458768A1 (es)
FR (1) FR2353518A1 (es)
GB (1) GB1546349A (es)
IT (1) IT1078289B (es)
MX (1) MX145854A (es)
NL (1) NL7705499A (es)
SU (1) SU718006A3 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0009094B1 (de) * 1978-09-12 1982-04-14 GebràœDer Sulzer Aktiengesellschaft Verfahren zur Herstellung von Methylenbrücken aufweisenden Polyarylaminen
EP1979306B1 (de) * 2006-01-20 2013-04-17 Basf Se Verfahren zur simultanen herstellung von 4,4'-diphenylmethandiamin sowie diphenylmethandiisocyanat und polyphenylenpolymethylenpolyisocyanaten
US10759736B2 (en) 2018-10-17 2020-09-01 Covestro Deutschland Ag Process for the preparation of di- and polyamines of the diphenylmethane series

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2149525A (en) * 1934-10-18 1939-03-07 Monsanto Chemicals Separation of aminodiphenyls
GB808425A (en) * 1954-08-21 1959-02-04 Takashige Tojo Improvements in or relating to the separation of aromatic amines
US2938054A (en) * 1958-02-18 1960-05-24 Allied Chem Process for purification of 4, 4'-methylenedianiline
US3175007A (en) * 1961-08-14 1965-03-23 Dow Chemical Co Purification of dianilines
US3410906A (en) * 1965-10-15 1968-11-12 Phillips Petroleum Co Process of separating amines
US3542871A (en) * 1968-07-29 1970-11-24 Upjohn Co Purification of 4,4'-methylene dianiline by crystallization
DE2238379C3 (de) * 1972-08-04 1984-08-30 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von Polyaminen
CA1004234A (en) * 1972-08-04 1977-01-25 Bayer Aktiengesellschaft Process for the production of polyamines
DE2238920C3 (de) * 1972-08-08 1984-09-27 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von Polyaminen
US4029705A (en) * 1975-08-18 1977-06-14 The Upjohn Company Purification process for MDA

Also Published As

Publication number Publication date
JPS5948819B2 (ja) 1984-11-29
BR7703390A (pt) 1978-02-28
DD130930A5 (de) 1978-05-17
NL7705499A (nl) 1977-12-06
DE2719996A1 (de) 1977-12-15
SU718006A3 (ru) 1980-02-25
MX145854A (es) 1982-04-07
US4201722A (en) 1980-05-06
FR2353518A1 (fr) 1977-12-30
IT1078289B (it) 1985-05-08
GB1546349A (en) 1979-05-23
BE855402A (fr) 1977-12-05
FR2353518B1 (es) 1983-09-09
JPS52148055A (en) 1977-12-08
DE2719996C2 (de) 1986-06-26

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19991201