14389-12-9Relevant articles and documents
1-Disulfo-[2,2-bipyridine]-1,1-diium chloride ionic liquid as an efficient catalyst for the green synthesis of 5-substituted 1H-tetrazoles
Aali, Elaheh,Gholizadeh, Mostafa,Noroozi-Shad, Nazanin
, (2021/08/30)
A simple, green and efficient method has been developed for the synthesis of 5-substituted 1H-tetrazole derivatives through [2+3] cycloaddition reaction in good to excellent yields between various benzonitriles and sodium azide. For this purpose, 1-disulfo-[2,2-bipyridine]-1,1-diium chloride ([BiPy](HSO3)2Cl2) system as an ionic liquid catalyst have been extended for the construction of these valuable products. This procedure has significant advantages, including using ethylene glycol as a green solvent. The other advantages of this method are inexpensive and ease the preparation of the catalyst, mild reaction conditions, green reaction medium, easy workup, short reaction time, and simple experimental process.
PROCESS FOR PREPARING 5-SUBSTITUTED-1H-TETRAZOLES IN AQUEOUS BETAINE SOLUTION
-
Paragraph 0091-0096, (2020/06/13)
The present invention relates to a method for manufacturing 5-substituted-1H-tetrazole in an aqueous betaine solution. More specifically, the present invention relates to a method for manufacturing 5-substituted-1H-tetrazole which comprises: a step of con
Bivalent zinc ion metal organic complex as well as preparation method and application thereof (by machine translation)
-
Paragraph 0014; 0060-0062; 0065-0067; 0069-0071, (2019/09/17)
The invention relates to a divalent zinc ion metal organic complex and a preparation method and application, and firstly, an organic ligand L, and a structural formula thereof are prepared firstly: The solution of the organic ligand L and the zinc salt solution react at room temperature to obtain the metal organic complex, and the metal organic complex serves as a catalyst to catalyze the synthesis of diisopropyl - D D-mannitol to have a good catalytic effect. (by machine translation)