213457-39-7

Basic information

• Product Name: 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)-4-carboethoxypyrazole
• Synonyms: 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)-4-carboethoxypyrazole
• CAS NO: 213457-39-7
• Molecular Weight: 393.152
• Mol File: 213457-39-7.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)-4-carboethoxypyrazole(CAS DataBase Reference)
• NIST Chemistry Reference: 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)-4-carboethoxypyrazole(213457-39-7)
• EPA Substance Registry System: 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)-4-carboethoxypyrazole(213457-39-7)

Safety Data

• Hazardous Substances Data: 213457-39-7(Hazardous Substances Data)

Upstream product

• 455-14-1 4-trifluoromethylphenylamine 
• 224637-77-8 3,3-dicyanopropionic acid ethyl ester 

Downstream Products

• 120068-79-3 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)pyrazole 

Relevant articles and documents

Process for preparation of urethane and diethyl carbonate

The invention discloses a method for preparing urethane and diethyl carbonate, which comprises the following steps: carrying out diazotization reaction on 2, 6-dichloro-4-trifluoromethylaniline and sodium nitrite in a solution containing 2, 3-dicyanoethyl propionate, and adding a nitrous acid quenching agent to a certain extent after the reaction is carried out to obtain a coupling product reaction solution; adding an obtained coupling product into an ethanol solution, adjusting the pH value of the solution, and carrying out cyclization reaction on the coupling product; continuously adjustingthe pH value of the solution, carrying out a decarboxylation reaction on a cyclization reaction product, adjusting the pH value of the solution to be neutral after the decarboxylation reaction, and carrying out reduced pressure distillation to obtain a distillate; and carrying out multi-stage rectification treatment on the distillate to obtain the urethane and diethyl carbonate. According to the method, the types of byproducts are reduced through process condition control, so that the byproducts are easy to separate and purify to obtain byproducts meeting the industrial product standard, and the organic waste liquid generated by synthesizing aryl pyrazole nitrile is reduced by 90% or above.

Process for preparing pyrazole derivatives

The invention relates to a process for preparing compounds having the formula: STR1 wherein R3, R4, R6 and Ar are as defined in the description, by reaction of a compound of formula (I) with a compound of formula (II) acco