351-19-9

Basic information

• Product Name: Hydrazine, 1,2-bis[3-(trifluoromethyl)phenyl]-
• CAS NO: 351-19-9
• Molecular Formula: C14H10F6N2
• Molecular Weight: 320.237
• Mol File: 351-19-9.mol
• Article Data: 9

Chemical Properties

• CAS DataBase Reference: Hydrazine, 1,2-bis[3-(trifluoromethyl)phenyl]-(CAS DataBase Reference)
• NIST Chemistry Reference: Hydrazine, 1,2-bis[3-(trifluoromethyl)phenyl]-(351-19-9)
• EPA Substance Registry System: Hydrazine, 1,2-bis[3-(trifluoromethyl)phenyl]-(351-19-9)

Safety Data

• Hazardous Substances Data: 351-19-9(Hazardous Substances Data)

Upstream product

• 98-46-4 3-trifluoromethylnitrobenzene 
• 588-00-1 1,2-bis(3-(trifluoromethyl)phenyl)diazene 

Downstream Products

• 588-00-1 1,2-bis(3-(trifluoromethyl)phenyl)diazene 
• 341-58-2 2,2'-bis(trifluoromethyl)benzidine 
• 65934-71-6 (3-trifluoromethyl)-N-isopropylbenzenamine 

Relevant articles and documents

Preparation Method for 2,2'-Bis(Trifluoromethyl)-4,4'-Diaminobiphenyl

The present invention relates to a method for producing 3,3 '- bis 2,2 - diaminobiphenyl by a benzidine rearrangement reaction from' -4 bis hydrazinobenzene in high yield, and more specifically, to dissolve 4 3,3 '-' - bis hydrazinobenzene in (A) organic solvent. (B) The solution prepared in (A) is added dropwise to an inorganic acid solution while maintaining a temperature below 0 °C.30°C. When the (C) titration is completed, less than 0 °C -30°C or less is reacted. 2,2 '- Bis -4, 4' - diaminobiphenyl, which is characterized in that it comprises.

Method for preparing polyimide monomer having low yellow index

The present invention chemically synthesizes a polyimide monomer. 10. The synthesized polyimide monomer is introduced into the loading area of the sublimation purification apparatus. - 3 TTTorr under vacuum above sublimation temperature of the synthesized polyimide monomer, followed by recrystallization. Provided is a method for preparing a polyimide monomer having improved yellowness index.

Preparation method of 2,2'-bis(trifluoromethyl)-4,4'-diaminodiphenyl

The invention relates to a preparation method of 2,2'-bis(trifluoromethyl)-4,4'-diaminodiphenyl. The preparation method comprises the following steps: synthesizing 3,3'-bis(trifluoromethyl)hydrazo-benzene in an inorganic alkaline aqueous solution by adopting nitrobenzotrifluoride as a raw material, adopting a phase transfer catalyst, a co-catalyst and Pd/C as a catalytic system and adopting aromatic hydrocarbon as a solvent, and performing the re-arrangement reaction on the 3,3'-bis(trifluoromethyl)hydrazo-benzene in an inorganic acid aqueous solution, thus obtaining 2,2'-bis(trifluoromethyl)-4,4'-diaminodiphenyl, wherein the phase transfer catalyst is one or a mixture of more of sodium dodecyl benzene sulfonate, sodium dodecyl sulfate and cetyl trimethyl ammonium bromide, and the co-catalyst is one or a mixture of more of 2,3-dichloro-1,4-naphthoquinone, 2-hydroxyanthraquinone and 2,6-dioxyanthraquinone. The preparation method has the advantages of mild reaction condition, simple process, high product quality and yield, low production cost, environmental friendliness, suitability for continuous production and the like.