GB737567A - Improvements in or relating to guanidino dithiocarbamic acids and preparation thereof - Google Patents

Improvements in or relating to guanidino dithiocarbamic acids and preparation thereof

Info

Publication number
GB737567A
GB737567A GB14729/52A GB1472952A GB737567A GB 737567 A GB737567 A GB 737567A GB 14729/52 A GB14729/52 A GB 14729/52A GB 1472952 A GB1472952 A GB 1472952A GB 737567 A GB737567 A GB 737567A
Authority
GB
United Kingdom
Prior art keywords
guanidino
inner salt
refluxed
acid
carbon disulphide
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
GB14729/52A
Inventor
Douglas James Fry
Alan James Lambie
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.)
Ilford Imaging UK Ltd
Original Assignee
Ilford 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 Ilford Ltd filed Critical Ilford Ltd
Priority to GB14729/52A priority Critical patent/GB737567A/en
Publication of GB737567A publication Critical patent/GB737567A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C281/00Derivatives of carbonic acid containing functional groups covered by groups C07C269/00 - C07C279/00 in which at least one nitrogen atom of these functional groups is further bound to another nitrogen atom not being part of a nitro or nitroso group
    • C07C281/16Compounds containing any of the groups, e.g. aminoguanidine

Landscapes

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

Abstract

The invention comprises guanidino-dithiocarbamic acids of the general formula <FORM:0737567/IV (b)/1> wherein R1, R2 and R3 are the same or different and are hydrogen or alkyl groups. The acids are prepared by reacting an amino guanidine of the formula <FORM:0737567/IV (b)/2> or an acid salt thereof with carbon disulphide, preferably in the presence of a base when a salt is employed. In examples (1) aminoguanidine bicarbonate in glacial acetic acid and ethanol is refluxed with carbon disulphide, and the excess solvents removed, yielding guanidino dithiocarbamic acid (inner salt). The reaction is also carried out in the presence of anhydrous sodium carbonate or pyridine; (2) aminoguanidine hydrochloride in methanol containing sodium methoxide is refluxed, filtered, and the filtrate refluxed with carbon disulphide to yield guanidino dithiocarbamic acid (inner salt); (3) N-methyl - N - aminoguanidinium sulphate in aqueous ethanol is boiled with sodium acetate, the mixture filtered and the filtrate refluxed with carbon disulphide giving N-methylguanidino-N-dithiocarbamic acid (inner salt); (4) N1-methyl-N-aminoguanidine hydrochloride similarly yields N1 - methylguanidino - N - dithiocarbamic acid inner salt) (using potassium carbonate as a base); (5) N1-ethyl-N-aminoguanidine hydrochloride is likewise converted to N1-ethyl-guanidino-N-dithiocarbamic acid (inner salt). Specification 737,568 is referred to.
GB14729/52A 1952-06-11 1952-06-11 Improvements in or relating to guanidino dithiocarbamic acids and preparation thereof Expired GB737567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB14729/52A GB737567A (en) 1952-06-11 1952-06-11 Improvements in or relating to guanidino dithiocarbamic acids and preparation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB14729/52A GB737567A (en) 1952-06-11 1952-06-11 Improvements in or relating to guanidino dithiocarbamic acids and preparation thereof

Publications (1)

Publication Number Publication Date
GB737567A true GB737567A (en) 1955-09-28

Family

ID=10046445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14729/52A Expired GB737567A (en) 1952-06-11 1952-06-11 Improvements in or relating to guanidino dithiocarbamic acids and preparation thereof

Country Status (1)

Country Link
GB (1) GB737567A (en)

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