ES390346A1 - A method for the preparation of 1, 2, 4-tiadiazolil-ureas. (Machine-translation by Google Translate, not legally binding) - Google Patents

A method for the preparation of 1, 2, 4-tiadiazolil-ureas. (Machine-translation by Google Translate, not legally binding)

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Publication number
ES390346A1
ES390346A1 ES390346A ES390346A ES390346A1 ES 390346 A1 ES390346 A1 ES 390346A1 ES 390346 A ES390346 A ES 390346A ES 390346 A ES390346 A ES 390346A ES 390346 A1 ES390346 A1 ES 390346A1
Authority
ES
Spain
Prior art keywords
methyl
see formula
ureas
translation
preparation
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
ES390346A
Other languages
Spanish (es)
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering Co
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 Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Priority to ES390346A priority Critical patent/ES390346A1/en
Publication of ES390346A1 publication Critical patent/ES390346A1/en
Expired legal-status Critical Current

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  • 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

A method for the preparation of 1,2,4-thiadiazolyl-ureas, of the general formula **(See formula)** where R1 is C4-C8 alkyl or C7-C8 cycloalkyl; R2 is H, methyl or ethyl; R3 and R4 are H or methyl, characterized by reacting a 3-alkyl-5 (1,2,4-thiadiazolyl) -amine with a mono- or dimethyl-carbomoyl halide, or with methyl isocyanate, or with phosgene and then with a mono- or di-methyl -amine, according respectively to the following chemical equations **(See formula)** O well **(See formula)** O well **(See formula)** the reactions preferably being conducted in equimolar proportions of starting materials; in an inert organic solvent medium; the presence of an acid acceptor being preferred in reactions where free acid is released; and at temperatures between 0º and 90ºC and preferably between 50º and 80ºC. (Machine-translation by Google Translate, not legally binding)
ES390346A 1971-04-19 1971-04-19 A method for the preparation of 1, 2, 4-tiadiazolil-ureas. (Machine-translation by Google Translate, not legally binding) Expired ES390346A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES390346A ES390346A1 (en) 1971-04-19 1971-04-19 A method for the preparation of 1, 2, 4-tiadiazolil-ureas. (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES390346A ES390346A1 (en) 1971-04-19 1971-04-19 A method for the preparation of 1, 2, 4-tiadiazolil-ureas. (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
ES390346A1 true ES390346A1 (en) 1974-07-01

Family

ID=8458220

Family Applications (1)

Application Number Title Priority Date Filing Date
ES390346A Expired ES390346A1 (en) 1971-04-19 1971-04-19 A method for the preparation of 1, 2, 4-tiadiazolil-ureas. (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES390346A1 (en)

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