GB881339A - Preparation of hydrazines - Google Patents

Preparation of hydrazines

Info

Publication number
GB881339A
GB881339A GB16185/60A GB1618560A GB881339A GB 881339 A GB881339 A GB 881339A GB 16185/60 A GB16185/60 A GB 16185/60A GB 1618560 A GB1618560 A GB 1618560A GB 881339 A GB881339 A GB 881339A
Authority
GB
United Kingdom
Prior art keywords
nickel
preparation
catalyst
nitrosoamines
hydrazines
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
GB16185/60A
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.)
Olin Corp
Original Assignee
Olin Corp
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 Olin Corp filed Critical Olin Corp
Publication of GB881339A publication Critical patent/GB881339A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C243/00—Compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
    • C07C243/10—Hydrazines
    • C07C243/12—Hydrazines having nitrogen atoms of hydrazine groups bound to acyclic carbon atoms
    • C07C243/14—Hydrazines having nitrogen atoms of hydrazine groups bound to acyclic carbon atoms of a saturated carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C241/00—Preparation of compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
    • C07C241/02—Preparation of hydrazines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

In a method for the preparation of unsymmetrical dialkylhydrazines by hydrogenating dialkylnitrosoamines having less than 6 carbon atoms in each alkyl radical, in the presence of nickel as a catalyst, the catalyst is pre-treated by contacting with a dialkylnitrosoamine for at least five minutes in a hydrogen free atmosphere. The preferred catalyst is Raney nickel and the pretreatment may be by aqueous or anhydrous dialkyl nitrosoamines or mixtures thereof for up to two hours at 0 DEG C. to 180 DEG C. Examples describe the preparation of unsymmetrical dimethyl-, diethyl, dipropyl and dipentyl hydrazines by hydrogenation of the corresponding nitrosoamines at elevated pressure using pretreated Raney, sponge nickel, or nickel supported on kieselguhr to give increased yield of product. Specification 801,534 is referred to.
GB16185/60A 1959-05-27 1960-05-06 Preparation of hydrazines Expired GB881339A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US881339XA 1959-05-27 1959-05-27

Publications (1)

Publication Number Publication Date
GB881339A true GB881339A (en) 1961-11-01

Family

ID=22209548

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16185/60A Expired GB881339A (en) 1959-05-27 1960-05-06 Preparation of hydrazines

Country Status (1)

Country Link
GB (1) GB881339A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3305585A (en) * 1962-11-16 1967-02-21 Electro Chimie Metal Process for producing unsymmetrical dialkylhydrazines by catalytic hydrogenation of dialkylnitrosamines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3305585A (en) * 1962-11-16 1967-02-21 Electro Chimie Metal Process for producing unsymmetrical dialkylhydrazines by catalytic hydrogenation of dialkylnitrosamines

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