GB1398075A - Preparation of diaminobenzhydrols - Google Patents

Preparation of diaminobenzhydrols

Info

Publication number
GB1398075A
GB1398075A GB4096871A GB4096871A GB1398075A GB 1398075 A GB1398075 A GB 1398075A GB 4096871 A GB4096871 A GB 4096871A GB 4096871 A GB4096871 A GB 4096871A GB 1398075 A GB1398075 A GB 1398075A
Authority
GB
United Kingdom
Prior art keywords
ketone
bis
diaminobenzhydrols
preparation
tetrahydro
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
GB4096871A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB4096871A priority Critical patent/GB1398075A/en
Priority to CH1294472A priority patent/CH572892A5/xx
Priority to DE19722243436 priority patent/DE2243436C2/en
Publication of GB1398075A publication Critical patent/GB1398075A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
    • C07D215/02—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
    • C07D215/12—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D215/14—Radicals substituted by oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D455/00—Heterocyclic compounds containing quinolizine ring systems, e.g. emetine alkaloids, protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine
    • C07D455/03—Heterocyclic compounds containing quinolizine ring systems, e.g. emetine alkaloids, protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine containing quinolizine ring systems directly condensed with at least one six-membered carbocyclic ring, e.g. protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine
    • C07D455/04—Heterocyclic compounds containing quinolizine ring systems, e.g. emetine alkaloids, protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine containing quinolizine ring systems directly condensed with at least one six-membered carbocyclic ring, e.g. protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine containing a quinolizine ring system condensed with only one six-membered carbocyclic ring, e.g. julolidine
    • C07D455/06—Heterocyclic compounds containing quinolizine ring systems, e.g. emetine alkaloids, protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine containing quinolizine ring systems directly condensed with at least one six-membered carbocyclic ring, e.g. protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine containing a quinolizine ring system condensed with only one six-membered carbocyclic ring, e.g. julolidine containing benzo [a] quinolizine ring systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Catalysts (AREA)

Abstract

1398075 Preparation of diaminobenzhydrols IMPERIAL CHEMICAL INDUSTRIES Ltd 31 Aug 1972 [2 Sept 1971] 40968/71 Heading C2C Diaminohydrols are produced by reducing the corresponding ketones by means of zinc dust and potassium hydroxide in a lower alcohol medium (i.e. one comprising 1-4 carbon atoms). Examples describe the reduction of Michler's ketone and the corresponding bis - (diethylamino) compound, bis - [2,3,6,7- tetrahydro - 1H,5H - benzo[ij]quinolizin - 9 - yl] ketone and bis-[1,2,3,4-tetrahydro-1-methylquinoline-5-yl]ketone
GB4096871A 1971-09-02 1971-09-02 Preparation of diaminobenzhydrols Expired GB1398075A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB4096871A GB1398075A (en) 1971-09-02 1971-09-02 Preparation of diaminobenzhydrols
CH1294472A CH572892A5 (en) 1971-09-02 1972-09-01
DE19722243436 DE2243436C2 (en) 1971-09-02 1972-09-04 Process for the preparation of 4,4'-bis (dimethylamino) benzhydrol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4096871A GB1398075A (en) 1971-09-02 1971-09-02 Preparation of diaminobenzhydrols

Publications (1)

Publication Number Publication Date
GB1398075A true GB1398075A (en) 1975-06-18

Family

ID=10417494

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4096871A Expired GB1398075A (en) 1971-09-02 1971-09-02 Preparation of diaminobenzhydrols

Country Status (3)

Country Link
CH (1) CH572892A5 (en)
DE (1) DE2243436C2 (en)
GB (1) GB1398075A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE27032C (en) * Badische Anilin- und Sodafabrik in Ludwigshafen a. Rh Process for the preparation of tetraalkylated diainidobenzhydrols and for the conversion of these into leuco bases of the rosaniline group by condensation with aromatic amines

Also Published As

Publication number Publication date
DE2243436C2 (en) 1982-08-26
CH572892A5 (en) 1976-02-27
DE2243436A1 (en) 1973-03-08

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Legal Events

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