13482-66-1Relevant articles and documents
Preparation of 2-(alkylcarbamoyl)hydrazine-1-carboxylic acid alkyl ester or its corresponding urazole salt
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Paragraph 0128-0130, (2021/06/23)
The present invention relates to the preparation of 2-(alkylcarbamoyl)hydrazine-1-carboxylic acid alkyl ester or its corresponding urazole salt. The present invention relates to 2-(alkylcarbamoyl)hydrazine-1-alkyl carboxylate or its corresponding derivative alkyl-4H-1,2,4-triazole-3,5-diol salt (urine Azole salt) preparation. This is particularly advantageous because it uses a one-pot reaction and uses alkyl acetate as the solvent in steps a) and b) of its synthesis.
METHOD FOR PRODUCING SEMICARBAZIDE COMPOUND, AND METHOD FOR PRODUCING TRIAZOLIDINEDIONE COMPOUND
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Paragraph 0129; 0132-0136, (2020/02/14)
PROBLEM TO BE SOLVED: To provide a method for synthesizing a semicarbazide compound which gives the semicarbazide compound without passing through an acyl azide. SOLUTION: Carbonylating agents such as carbonyl diimidazole (CDI) and triphosgene (TCF) are brought into contact with either one of an amine compound and a carbazate compound to form an active intermediate. A semicarbazide compound is synthesized by reacting the resulting active intermediate with the remaining one of the amine compound and the carbazate compound. SELECTED DRAWING: None COPYRIGHT: (C)2020,JPOandINPIT
