GB1016520A - Process for the preparation of substituted 1,3,4-thiadiazoles - Google Patents

Process for the preparation of substituted 1,3,4-thiadiazoles

Info

Publication number
GB1016520A
GB1016520A GB40073/63A GB4007363A GB1016520A GB 1016520 A GB1016520 A GB 1016520A GB 40073/63 A GB40073/63 A GB 40073/63A GB 4007363 A GB4007363 A GB 4007363A GB 1016520 A GB1016520 A GB 1016520A
Authority
GB
United Kingdom
Prior art keywords
substituted
hydrazine
heterocyclic
aromatic
unsubstituted aromatic
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
GB40073/63A
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.)
Kalle GmbH and Co KG
Original Assignee
Kalle GmbH and Co KG
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 Kalle GmbH and Co KG filed Critical Kalle GmbH and Co KG
Publication of GB1016520A publication Critical patent/GB1016520A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D285/00—Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups C07D275/00 - C07D283/00
    • C07D285/01—Five-membered rings
    • C07D285/02—Thiadiazoles; Hydrogenated thiadiazoles
    • C07D285/04—Thiadiazoles; Hydrogenated thiadiazoles not condensed with other rings
    • C07D285/12—1,3,4-Thiadiazoles; Hydrogenated 1,3,4-thiadiazoles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
    • C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
    • C07D417/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings directly linked by a ring-member-to-ring-member bond
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2603/00—Systems containing at least three condensed rings
    • C07C2603/02—Ortho- or ortho- and peri-condensed systems
    • C07C2603/04—Ortho- or ortho- and peri-condensed systems containing three rings
    • C07C2603/22—Ortho- or ortho- and peri-condensed systems containing three rings containing only six-membered rings
    • C07C2603/24—Anthracenes; Hydrogenated anthracenes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)

Abstract

Substituted 1,3,4-thiadiazoles of the formula <FORM:1016520/C2/1> wherein R1 and R2, which may be the same or different, represent substituted or unsubstituted aromatic carbocyclic or aromatic heterocyclic radicals, are produced by heating a carboxylic acid derived from a substituted or unsubstituted aromatic carbocyclic or aromatic heterocyclic compound with hydrazine, a hydrate of hydrazine, an inorganic salt of hydrazine or a monohydrazide of a substituted or unsubstituted aromatic carboxylic or heterocyclic carboxylic acid and a sulphide of phosphorus in the presence of a basic organic tertiary nitrogen compound. The basic nitrogen compounds may be used in admixture with smaller amounts of inert organic solvents and the reaction is generally performed at 90 DEG to 160 DEG C. On completion of the reaction the mixture may be poured into water, rendered alkaline to pH 8 to 12 whilst vigorously stirring and the thiadiazole precipitate so formed washed with water prior to drying. Specified substituents in the aromatic radicals are halogen atoms and alkyl, cycloalkyl, alkoxy, amino and heterocyclic groups.
GB40073/63A 1962-10-13 1963-10-10 Process for the preparation of substituted 1,3,4-thiadiazoles Expired GB1016520A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK47967A DE1299296B (en) 1962-10-13 1962-10-13 Process for the preparation of substituted 1. 3. 4-thiodiazoles

Publications (1)

Publication Number Publication Date
GB1016520A true GB1016520A (en) 1966-01-12

Family

ID=7224765

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40073/63A Expired GB1016520A (en) 1962-10-13 1963-10-10 Process for the preparation of substituted 1,3,4-thiadiazoles

Country Status (3)

Country Link
DE (1) DE1299296B (en)
GB (1) GB1016520A (en)
NL (1) NL298757A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4049622A (en) * 1975-10-09 1977-09-20 Basf Aktiengesellschaft Self-extinguishing thermoplastic molding compositions

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL261797A (en) * 1960-03-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4049622A (en) * 1975-10-09 1977-09-20 Basf Aktiengesellschaft Self-extinguishing thermoplastic molding compositions

Also Published As

Publication number Publication date
DE1299296B (en) 1969-07-17
NL298757A (en)

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