GB595472A - Improvements in or relating to the preparation of n-(para-aminobenzenesulphonyl)-guanidines - Google Patents

Improvements in or relating to the preparation of n-(para-aminobenzenesulphonyl)-guanidines

Info

Publication number
GB595472A
GB595472A GB11651/45A GB1165145A GB595472A GB 595472 A GB595472 A GB 595472A GB 11651/45 A GB11651/45 A GB 11651/45A GB 1165145 A GB1165145 A GB 1165145A GB 595472 A GB595472 A GB 595472A
Authority
GB
United Kingdom
Prior art keywords
aminobenzenesulphonyl
cyanamide
alcoholic
amino group
guanidines
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
GB11651/45A
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.)
Rhone Poulenc SA
Original Assignee
Rhone Poulenc SA
Societe des Usines Chimiques Rhone Poulenc SA
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 Rhone Poulenc SA, Societe des Usines Chimiques Rhone Poulenc SA filed Critical Rhone Poulenc SA
Publication of GB595472A publication Critical patent/GB595472A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C311/00—Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
    • C07C311/50—Compounds containing any of the groups, X being a hetero atom, Y being any atom
    • C07C311/52—Y being a hetero atom
    • C07C311/64—X and Y being nitrogen atoms, e.g. N-sulfonylguanidine

Landscapes

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

Abstract

N-(p-Aminobenzenesulphonyl)-guanidines of general formula <FORM:0595472/IV/1> wherein R1 and R2 are identical or different and represent hydrogen, or hydrocarbon or acyl groups; R3 represents hydrogen or alkyl and R4 represents hydrogen, or an alkyl or amino group, are obtained by treating a benzenesulphonyl cyanamide substituted in the para-position by an amino group or by a group convertible into an amino group with ammonia or a primary or secondary aliphatic amine or with hydrazine. The condensations are effected at ordinary pressure or in an autoclave. In examples: p-aminobenzenesulphonyl cyanamide is heated in a closed vessel with (1) 5N-alcoholic ammonia; (2) alcoholic monoethylamine; (3) alcoholic diethylamine, to produce the corresponding products; (4) p-aminobenzenesulphonyl cyanamide is heated under reflux with alcoholic hydrazine hydrate to produce N-(p-aminobenzenesulphonyl)-N1-amino-guanidine. p-Aminobenzenesulphonyl cyanamide is obtained by treating aqueous cyanamide, or mono-calcium cyanamide, in presence of caustic soda, with p-acetylaminobenzene sulphochloride and subsequently acidifying.
GB11651/45A 1943-12-30 1945-05-07 Improvements in or relating to the preparation of n-(para-aminobenzenesulphonyl)-guanidines Expired GB595472A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR595472X 1943-12-30

Publications (1)

Publication Number Publication Date
GB595472A true GB595472A (en) 1947-12-05

Family

ID=8966882

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11651/45A Expired GB595472A (en) 1943-12-30 1945-05-07 Improvements in or relating to the preparation of n-(para-aminobenzenesulphonyl)-guanidines

Country Status (1)

Country Link
GB (1) GB595472A (en)

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