5-methyl-3-(trifluoromethyl)-1H-pyrazole

Base Information

• Chemical Name: 5-methyl-3-(trifluoromethyl)-1H-pyrazole
• CAS No.: 942060-04-0
• Molecular Formula: C₅H₅F₃N₂
• Molecular Weight: 150.103
• Mol file: 942060-04-0.mol

Synonyms:5-METHYL-3-(TRIFLUOROMETHYL)-1H-PYRAZOLE;3-(Trifluoromethyl)-5-methyl-1H-pyrazole

Chemical Property of 5-methyl-3-(trifluoromethyl)-1H-pyrazole

Chemical Property:

• PSA: 28.68000
• LogP: 1.73690

Purity/Quality:

98%,99%, ^*data from raw suppliers

5-Methyl-3-trifluoromethyl-1H-pyrazole 95%+ ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 5-methyl-3-(trifluoromethyl)-1H-pyrazole

There total 14 articles about 5-methyl-3-(trifluoromethyl)-1H-pyrazole which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 98.0%

(3E)-1,1,1-trifluoro-4-methoxy-pent-3-en-2-one (135351-20-1) → 3-methyl-5-(trifluoromethyl)pyrazole (10010-93-2,942060-04-0)

Guidance literature:

With hydrazine; In ethanol; for 2h; Heating;

Reference yield: 94.0%

3-methyl-5-trifluoromethyl-pyrazole-1-carboxylic acid benzyl ester → 3-methyl-5-(trifluoromethyl)pyrazole (10010-93-2,942060-04-0)

Guidance literature:

With dimethylamine borane; potassium carbonate; triphenylphosphine; bis(triphenylphosphine)nickel(II) chloride; In acetonitrile; at 40 ℃; for 8h;

DOI:10.1021/ol016693l

Reference yield: 94.0%

hydrazinecarboxylic acid methyl ester (6294-89-9) + 1,1,1-trifluoro-4-methoxypent-3-en-2-one (135351-20-1,102145-82-4) → 3-methyl-5-(trifluoromethyl)pyrazole (10010-93-2,942060-04-0)

Guidance literature:

at 200 ℃; for 0.1h; under 2792.67 - 4447.59 Torr; Microwave irradiation; Neat (no solvent); neat (no solvent);

DOI:10.1002/jhet.309

upstream raw materials:

(3E)-1,1,1-trifluoro-4-methoxy-pent-3-en-2-one

1,1,1-Trifluoro-2,4-pentanedione

(Z)-1,1,1-trifluoro-4-(phenylamino)pent-3-en-2-one

5-hydroxy-3-methyl-5-trifluoromethyl-4,5-dihydro-1H-pyrazolethiocarboxy amide

Downstream raw materials:

methyl 5-(trifluoromethyl)-1H-pyrazole-3-carboxylate

(5-methyl-3-trifluoromethylpyrazol-1-yl)acetic acid

Refernces

• 1、 Liebing, Phil,Edelmann, Frank T.. "Trifluoromethylated 3-(Pyrazol-1-yl)propanamide (PPA) Ligands". . . Retrieved 2020/09/09.
• 2、 Pelcman, Benjamin,Sanin, Andrei,Nilsson, Peter,No, Kiyo,Schaal, Wesley,?hrman, Sara,Krog-Jensen, Christian,Forsell, Pontus,Hallberg, Anders,Larhed, Mats,Boesen, Thomas,Kromann, Hasse,Vogensen, Stine Byskov,Groth, Thomas,Claesson, Hans-Erik. "3-Substituted pyrazoles and 4-substituted triazoles as inhibitors of human 15-lipoxygenase-1". . p. 3024 - 3029. Retrieved 2015/06/22.