GB922275A - Process for the production of salts of diaminoketones - Google Patents

Process for the production of salts of diaminoketones

Info

Publication number
GB922275A
GB922275A GB3386060A GB3386060A GB922275A GB 922275 A GB922275 A GB 922275A GB 3386060 A GB3386060 A GB 3386060A GB 3386060 A GB3386060 A GB 3386060A GB 922275 A GB922275 A GB 922275A
Authority
GB
United Kingdom
Prior art keywords
salts
diaminoketones
bases
acid
acids
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
GB3386060A
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of GB922275A publication Critical patent/GB922275A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D223/00—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom
    • C07D223/02—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom not condensed with other rings
    • C07D223/06—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom not condensed with other rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D223/08—Oxygen atoms
    • C07D223/10—Oxygen atoms attached in position 2
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D227/00—Heterocyclic compounds containing rings having one nitrogen atom as the only ring hetero atom, according to more than one of groups C07D203/00 - C07D225/00

Abstract

Salts of diaminoketones are prepared by heating at least 2 mols of an anhydrous alkaline earth metal oxide to a temperature of from 250 DEG to 500 DEG C. with a lactam or polyamide of an aminocarboxylic acid in an amount providing the equivalent of approximately 1 mol. of said aminocarboxylic acid, distilling of the volatile fractions comprising intermediate Schiff's bases and either hydrolysing said bases in aqueous mineral acid to form the salts of diaminoketones directly, or treating said bases with hot caustic alkali solution and dissolving the resulting product in aqueous mineral acid to form the diaminoketone salts. Preferred lactams have 5 to 9 ring members and may be substituted by alkyl, aryl or cycloalkyl groups. Polycaprolactam is specified as a suitable polyamide. Specified mineral acids are hydrochloric, sulphuric and phosphoric acids. On treatment with bases, the salts of the diaminoketones give unstable diaminoketones which cyclise to form Schiff's bases. The latter may also be converted into organic acid salts of diaminoketones by treatment with, for example, acetic, propionic and oxalic acids. Examples describe the preparation of salts of 1,11-diamino-6-undecanone and 1,7-diamino-4-heptanone.
GB3386060A 1959-10-02 1960-10-03 Process for the production of salts of diaminoketones Expired GB922275A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0029518 1959-10-02

Publications (1)

Publication Number Publication Date
GB922275A true GB922275A (en) 1963-03-27

Family

ID=7093349

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3386060A Expired GB922275A (en) 1959-10-02 1960-10-03 Process for the production of salts of diaminoketones

Country Status (4)

Country Link
BE (1) BE595617A (en)
CH (1) CH387065A (en)
GB (1) GB922275A (en)
NL (2) NL111590C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412156A (en) * 1963-09-11 1968-11-19 Kanegafuchi Spinning Co Ltd Process for producing omega, omega'-diaminoalkanes
US3518252A (en) * 1965-04-14 1970-06-30 Kanebo Ltd Production of aliphatic schiff bases and diaminoalkanone derivatives thereof
DE2938866A1 (en) * 1979-09-28 1981-04-09 Toray Industries, Inc., Tokyo METHOD FOR PRODUCING AN AMINO SHIP'S BASE AND / OR A DIAMINOCETONE OR METAL SALT OF AN (OMEGA) AMINOCARBONIC ACID
US4804753A (en) * 1985-01-23 1989-02-14 Bayer Aktiengesellschaft Process for the preparation of Schiff's bases

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412156A (en) * 1963-09-11 1968-11-19 Kanegafuchi Spinning Co Ltd Process for producing omega, omega'-diaminoalkanes
US3518252A (en) * 1965-04-14 1970-06-30 Kanebo Ltd Production of aliphatic schiff bases and diaminoalkanone derivatives thereof
DE2938866A1 (en) * 1979-09-28 1981-04-09 Toray Industries, Inc., Tokyo METHOD FOR PRODUCING AN AMINO SHIP'S BASE AND / OR A DIAMINOCETONE OR METAL SALT OF AN (OMEGA) AMINOCARBONIC ACID
US4804753A (en) * 1985-01-23 1989-02-14 Bayer Aktiengesellschaft Process for the preparation of Schiff's bases

Also Published As

Publication number Publication date
NL256367A (en)
DE1420044A1 (en) 1969-01-30
NL111590C (en)
BE595617A (en) 1961-01-16
CH387065A (en) 1965-01-31

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