GB1358816A - Process for preparing secondary aromatic amines - Google Patents

Process for preparing secondary aromatic amines

Info

Publication number
GB1358816A
GB1358816A GB323473A GB323473A GB1358816A GB 1358816 A GB1358816 A GB 1358816A GB 323473 A GB323473 A GB 323473A GB 323473 A GB323473 A GB 323473A GB 1358816 A GB1358816 A GB 1358816A
Authority
GB
United Kingdom
Prior art keywords
mixture
aromatic amine
fecl
excess
secondary aromatic
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
GB323473A
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid 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 American Cyanamid Co filed Critical American Cyanamid Co
Publication of GB1358816A publication Critical patent/GB1358816A/en
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
    • C07C209/04—Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of functional groups by amino groups
    • C07C209/14—Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of functional groups by amino groups by substitution of hydroxy groups or of etherified or esterified hydroxy groups
    • C07C209/18—Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of functional groups by amino groups by substitution of hydroxy groups or of etherified or esterified hydroxy groups with formation of amino groups bound to carbon atoms of six-membered aromatic rings or from amines having nitrogen atoms bound to carbon atoms of six-membered aromatic rings

Abstract

1358816 Preparation of secondary aromatic amines AMERICAN CYANAMID CO 22 Jan 1973 [16 Feb 1972] 3234/73 Heading C2C Secondary amines are prepared by (a) condensing a mono- or polyhydroxy aromatic compound with an excess of a primary aromatic amine at an elevated temperature in the presence of a catalytic amount of FeCl 3 , until substantially all of the water of reaction has been removed, (b) adding an anhydrous metal phosphate to the mixture resulting from step (a), in an amount sufficient to neutralize the FeCl 3 and tie up any free iron present in the mixture, (c) distilling said mixture under reduced pressure to remove the excess of primary aromatic amine, (d) filtering off any inorganic salts present in the mixture after distillation, and (e) recovering a secondary aromatic amine from the filtrate.
GB323473A 1972-02-16 1973-01-22 Process for preparing secondary aromatic amines Expired GB1358816A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22696872A 1972-02-16 1972-02-16

Publications (1)

Publication Number Publication Date
GB1358816A true GB1358816A (en) 1974-07-03

Family

ID=22851216

Family Applications (1)

Application Number Title Priority Date Filing Date
GB323473A Expired GB1358816A (en) 1972-02-16 1973-01-22 Process for preparing secondary aromatic amines

Country Status (5)

Country Link
JP (1) JPS5735180B2 (en)
CA (1) CA1005462A (en)
DE (1) DE2307233A1 (en)
FR (1) FR2172304A1 (en)
GB (1) GB1358816A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485260A (en) * 1979-10-03 1984-11-27 Xerox Corporation Preparation of unsymmetrical diphenylamines

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926714A1 (en) * 1979-07-03 1981-01-15 Bayer Ag METHOD FOR PRODUCING 4-AMINO-DIPHENYLAMINES
CA1219284A (en) * 1983-09-09 1987-03-17 Paul Szabo Continuous process
JP5574477B2 (en) * 2010-01-06 2014-08-20 国立大学法人名古屋大学 Monoamine production method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1222043A (en) * 1958-07-25 1960-06-07 Goodyear Tire & Rubber Process for preparing aromatic diamines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485260A (en) * 1979-10-03 1984-11-27 Xerox Corporation Preparation of unsymmetrical diphenylamines

Also Published As

Publication number Publication date
JPS5735180B2 (en) 1982-07-27
JPS4896526A (en) 1973-12-10
CA1005462A (en) 1977-02-15
DE2307233A1 (en) 1973-08-23
FR2172304A1 (en) 1973-09-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee