GB718508A - Improvements in the production of diamino-dicyclohexylmethanes - Google Patents

Improvements in the production of diamino-dicyclohexylmethanes

Info

Publication number
GB718508A
GB718508A GB13992/51A GB1399251A GB718508A GB 718508 A GB718508 A GB 718508A GB 13992/51 A GB13992/51 A GB 13992/51A GB 1399251 A GB1399251 A GB 1399251A GB 718508 A GB718508 A GB 718508A
Authority
GB
United Kingdom
Prior art keywords
cyclohexane
solvent
oxide
diaminodiphenylmethane
diamino
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
GB13992/51A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB718508A publication Critical patent/GB718508A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C211/00—Compounds containing amino groups bound to a carbon skeleton
    • C07C211/33—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings
    • C07C211/34—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings of a saturated carbon skeleton
    • C07C211/36—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings of a saturated carbon skeleton containing at least two amino groups bound to the carbon skeleton
    • 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
    • C07C209/70—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 by reduction of unsaturated amines
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/14—The ring being saturated

Landscapes

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

Abstract

Diaminodicyclohexylmethanes and their homologues containing alkyl substituents in the nucleus are obtained by catalytic hydrogenation of the corresponding diaminodiphenylmethanes at a pressure of at least 200 atmospheres and at temperatures of more than 200 DEG C. in the presence of a hydrophobic solvent and using as catalyst a mixture of nickel, cobalt or cobalt oxide with an alkaline earth oxide. Specified starting materials are 4,41- and 2,21-diaminodiphenylmethane and 3,31-dimethyl-4,41-diaminodiphenylmethane and suitable solvents are cyclohexane, hydrogenated naphthalenes, and aliphatic hydrocarbons such as ligroin. In an example a solution of 4,41-diamino-diphenylmethane in cyclohexane is treated with hydrogen at 215-220 DEG C. and at 220 atmospheres pressure in the presence of a mixture of calcium oxide and cobalt oxide as catalyst to yield 4,41-diaminodicyclohexylmethane. Comparative yields are given when the example is carried out using tetrahydrofurane, cyclohexanol or cyclohexylamine as solvent instead of cyclohexane and also when no solvent is used. Specification 619,706 is referred to.
GB13992/51A 1950-06-17 1951-06-13 Improvements in the production of diamino-dicyclohexylmethanes Expired GB718508A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE718508X 1950-06-17

Publications (1)

Publication Number Publication Date
GB718508A true GB718508A (en) 1954-11-17

Family

ID=6626964

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13992/51A Expired GB718508A (en) 1950-06-17 1951-06-13 Improvements in the production of diamino-dicyclohexylmethanes

Country Status (1)

Country Link
GB (1) GB718508A (en)

Similar Documents

Publication Publication Date Title
GB701211A (en) Bicyclo-heptadienes and process of preparing the same
GB718508A (en) Improvements in the production of diamino-dicyclohexylmethanes
GB903062A (en) Dimeric p-isopropenylphenol, a process for its production and its use in the preparation of 1:3:3:trimethyl-1-p-hydroxyphenyl-indan-6-ol
US3187020A (en) Process for preparing diazides
GB731917A (en) Manufacture of 2-ethyl-hexanal-(1) and 2-ethyl-hexanol-(1)
GB1167412A (en) Production of Amines from Mixtures Containing n-Amyl Alcohol and Cyclopentanol
GB679712A (en) Improvements in and relating to the production of amines
GB881512A (en) Process of producing cyclohexylamine
GB1456799A (en) Preparation of 1-methylpiperazine and 1,4-dimethylpiperazine as co-products
US2532279A (en) Hydrogenated furfuralacetofuran
GB1238478A (en)
GB808114A (en) Process for the conversion of ethanolamine into ethylene diamine, piperazine and diethylene triamine
GB599016A (en) Improvements in or relating to the production of ribitylaminobenzenes and triacyl derivatives thereof
GB1106088A (en) Process for the preparation of phloroglucinol
GB955945A (en) Saturated n-hydroxylactams
ES280295A1 (en) Fenol catalytic preparation procedure (Machine-translation by Google Translate, not legally binding)
GB736302A (en) Polyhydronaphthalene compounds
GB969812A (en) Catalytic process for the production of organic bases
GB952718A (en) Process for producing acetaldehyde
GB555240A (en) Improvements in and relating to the catalytic hydrogenation of organic compounds
GB726362A (en) Hydroperoxides of diparatolyl methane and 1:1-diparatolyl ethane, and the production thereof
GB870009A (en) Reduction of tetrahydrobenzaldehydes
GB745684A (en) Method of making n, n-dialkylaminoethylamines
GB879004A (en) Formic acid esters of 1-alkinyl-cycloalkanols and a process for their manufacture
GB703929A (en) Improvements in the production of tetrahydrofuran compounds