GB285877A - Manufacture of 4-nitro-2-amino-1-benzoic acid - Google Patents

Manufacture of 4-nitro-2-amino-1-benzoic acid

Info

Publication number
GB285877A
GB285877A GB5746/28A GB574628A GB285877A GB 285877 A GB285877 A GB 285877A GB 5746/28 A GB5746/28 A GB 5746/28A GB 574628 A GB574628 A GB 574628A GB 285877 A GB285877 A GB 285877A
Authority
GB
United Kingdom
Prior art keywords
nitro
benzoic acid
amino
chlor
manufacture
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
GB5746/28A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB285877A publication Critical patent/GB285877A/en
Expired legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

285,877. I. G. Farbenindustrie Akt.- Ges. Feb. 24, 1927, [Convention date]. 2-Amino-4-nitro-1-benzoic acid is produced by treating 2-chlor-4-nitro-1-benzoic acid with ammonia in the presence of a catalyst for facilitating the removal of hydrochloric acid. In an example, 2-chlor-4-nitro-1-benzoic acid is heated under pressure with ammonia and finely divided copper in order to produce 2-amino-4-nitro-1-benzoic acid. Specification 3966/08 is referred to. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also the treatment of 2-chlor-4-nitro-1-benzoic acid with alkylamines, arylamines and aralkylamines. This subjectmatter does not appear in the Specification as accepted.
GB5746/28A 1927-02-24 1928-02-23 Manufacture of 4-nitro-2-amino-1-benzoic acid Expired GB285877A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE285877X 1927-02-24

Publications (1)

Publication Number Publication Date
GB285877A true GB285877A (en) 1928-09-27

Family

ID=6058943

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5746/28A Expired GB285877A (en) 1927-02-24 1928-02-23 Manufacture of 4-nitro-2-amino-1-benzoic acid

Country Status (1)

Country Link
GB (1) GB285877A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2687431A (en) * 1950-12-20 1954-08-24 Gen Aniline & Film Corp Process of preparing nitro phenylenediamines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2687431A (en) * 1950-12-20 1954-08-24 Gen Aniline & Film Corp Process of preparing nitro phenylenediamines

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