GB738672A - Improvements in or relating to the preparation of guanamines - Google Patents

Improvements in or relating to the preparation of guanamines

Info

Publication number
GB738672A
GB738672A GB4592/53A GB459253A GB738672A GB 738672 A GB738672 A GB 738672A GB 4592/53 A GB4592/53 A GB 4592/53A GB 459253 A GB459253 A GB 459253A GB 738672 A GB738672 A GB 738672A
Authority
GB
United Kingdom
Prior art keywords
preparation
dicyandiamide
alkali metal
nitrile
catalyst
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
GB4592/53A
Inventor
William Owen Jones
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.)
BOC Group Ltd
Original Assignee
British Oxigen 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 British Oxigen Ltd filed Critical British Oxigen Ltd
Priority to GB4592/53A priority Critical patent/GB738672A/en
Publication of GB738672A publication Critical patent/GB738672A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C277/00—Preparation of guanidine or its derivatives, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups
    • C07C277/08—Preparation of guanidine or its derivatives, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups of substituted guanidines
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C277/00—Preparation of guanidine or its derivatives, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C279/00—Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups

Landscapes

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

Abstract

A process for the preparation of a guanamine comprises reacting dicyandiamide with a nitrile or polynitrile in liquid ammonia in the presence of a catalyst consisting of an alkali metal, an alkaline earth metal, an alkali metal hydroxide or amide, or other strongly basic alkali metal compound, at a temperature between 0 DEG and 120 DEG C. (preferably 60 DEG and 100 DEG C.). The molecular ratio of dicyandiamide to nitrile is preferably between 1.05 and 1.25, and the catalyst is preferably sodium hydroxide in an amount between 4 and 8 per cent by weight of dicyandiamide. The reaction is preferably conducted in an austenitic stainless steel vessel. The examples describe the preparation of benzoguanamine, phenylacetoguanamine, acetoguanamine and 4-cyanovaleroguanamine.
GB4592/53A 1953-02-18 1953-02-18 Improvements in or relating to the preparation of guanamines Expired GB738672A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4592/53A GB738672A (en) 1953-02-18 1953-02-18 Improvements in or relating to the preparation of guanamines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4592/53A GB738672A (en) 1953-02-18 1953-02-18 Improvements in or relating to the preparation of guanamines

Publications (1)

Publication Number Publication Date
GB738672A true GB738672A (en) 1955-10-19

Family

ID=9780068

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4592/53A Expired GB738672A (en) 1953-02-18 1953-02-18 Improvements in or relating to the preparation of guanamines

Country Status (1)

Country Link
GB (1) GB738672A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1019310B (en) * 1956-01-07 1957-11-14 Albert Ag Chem Werke Process for the production of diguanamines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1019310B (en) * 1956-01-07 1957-11-14 Albert Ag Chem Werke Process for the production of diguanamines

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