149978-42-7

Basic information

• Product Name: 1-Methyl-5-(trifluoromethyl)-1H-pyrazol-3-amine
• Synonyms: 1-Methyl-5-(trifluoromethyl)-1H-pyrazol-3-amine;3-Amino-1-methyl-5-(trifluoromethyl)-1H-pyrazole;1-METHYL-5-(TRIFLUOROMETHYL)-1H-PYRAZOL-;3-amino-5-trifluoromethyl-N-methyl pyrazole
• CAS NO: 149978-42-7
• Molecular Formula: C₅H₆F₃N₃
• Molecular Weight: 165.1164496
• Mol File: 149978-42-7.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 227.9±40.0 °C(Predicted)
• Appearance: /
• Density: 1.50±0.1 g/cm3(Predicted)
• Storage Temp.: 2-8°C(protect from light)
• PKA: 2.82±0.11(Predicted)
• CAS DataBase Reference: 1-Methyl-5-(trifluoromethyl)-1H-pyrazol-3-amine(CAS DataBase Reference)
• NIST Chemistry Reference: 1-Methyl-5-(trifluoromethyl)-1H-pyrazol-3-amine(149978-42-7)
• EPA Substance Registry System: 1-Methyl-5-(trifluoromethyl)-1H-pyrazol-3-amine(149978-42-7)

Safety Data

• Hazardous Substances Data: 149978-42-7(Hazardous Substances Data)

Usage

General Description

1-Methyl-5-(trifluoromethyl)-1H-pyrazol-3-amine is a chemical compound with the molecular formula C5H6F3N3. It is a pyrazole derivative with a methyl group attached to the nitrogen atom and a trifluoromethyl group attached to the carbon atom. 1-Methyl-5-(trifluoromethyl)-1H-pyrazol-3-amine is used in the pharmaceutical and agrochemical industries as a building block for the synthesis of various compounds, including potential drug candidates and agricultural chemicals. It has also been studied for its potential biological and pharmacological activities, including its inhibitory effects on certain enzymes and its potential as a pesticide. Additionally, the trifluoromethyl group contributes to its high lipophilicity and chemical stability, making it a valuable tool for medicinal and agrochemical research and development.

Upstream product

• 481065-92-3 1-methyl-5-(trifluoromethyl)-1H-pyrazole-3-carboxylic acid 
• 110234-68-9 3-cyano-1,1,1-trifluoroacetone 
• 60-34-4 methylhydrazine 
• 128648-60-2 (3E)-4-amino-4-ethoxy-1,1,1,trifluoro-3-buten-2-one 
• 302-15-8 methylhydrazine sulfuric acid 

Downstream Products

• 1620678-56-9 (4-((1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl)carbamoyl)phenyl)boronic acid 
• 1229453-99-9 N-(1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl)-5-((6-((methylamino)methyl)pyrimidin-4-yl)oxy)-1H-indole-1-carboxamide 
• 1188909-55-8 phenyl (1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl)carbamate 

Relevant articles and documents

Practical synthetic method for functionalized 1-methyl-3/5-(trifluoromethyl)-1H-pyrazoles

A new, high-yielding, and practical method for synthesis of 1-methyl-3-(trifluoromethyl)-1H-pyrazole and 1-methyl- 5-(trifluoromethyl)-1H-pyrazole, key intermediates for important building blocks relevant to medicinal and agrochemistry, is developed. A one-step procedure for synthesis of the regioisomeric mixture of target pyrazoles was proposed starting from 4-ethoxy- 1,1,1-trifluoro-3-buten-2-one. The procedure for separation of this mixture was elaborated on the basis of the boiling point vs pressure diagram analysis. The efficient synthetic strategies for regioisomeric building blocks bearing CF3 groups at the 3rd and 5th positions were demonstrated. A set of 1-methyl-3-(trifluoromethyl)-1H-pyrazoles containing such a functional group as aldehyde, acid, boron pinacolate, lithium sulfinate, and sulfonyl chloride was synthesized based on lithiation of 1-methyl-3-(trifluoromethyl)- 1H-pyrazole in a flow reactor. Bromination of both 1-methyl-3-(trifluoromethyl)-1H-pyrazole and 1-methyl-5-(trifluoromethyl)-1Hpyrazole by NBS in mild conditions was performed. The introduction of the functional group at the 4th position of 1-methyl-5- (trifluoromethyl)-1H-pyrazole was illustrated by the optimized synthesis of the corresponding aldehyde and acid based on the Br-Li exchange in an appropriate bromide. Alternatively, the introduction of the functional group (acid and boron pinacolate) at the 5th position of 1-methyl-5-(trifluoromethyl)-1H-pyrazole was performed based on the direct ortho-metalation (DoM) reaction of 4- bromo-1-methyl-5-(trifluoromethyl)pyrazole followed by catalytic reductive debromination.

SULFONYLUREAS AND RELATED COMPOUNDS AND USE OF SAME

ABSTRACT The present invention provides for certain sulfonyl ureas and related compounds which have advantageous properties and show useful activity in the inhibition of activation of the NLRP3 inflammasome. Such compounds are useful in the treatment of a wide range of disorders in which the inflammation process, or more specifically the NLRP3 inflammasome, have been implicated as being a key factor.

Substituted pyrazolypyrazoles and their use as herbicides

STR1 The invention relates to new pyrazolylpyrazoles of general formula (I) in which R1, R2, R3, R4 and R5 have the meanings given in the description, processes for their preparation as well as intermediates, and their use as herbicides.