5-(4-fluoro-phenyl)-1,4-dimethyl-1H-pyrazole-3-carboxylic acid ethyl ester

Base Information

Chemical Name:5-(4-fluoro-phenyl)-1,4-dimethyl-1H-pyrazole-3-carboxylic acid ethyl ester
CAS No.:871362-70-8
Molecular Formula:C₁₄H₁₅FN₂O₂
Molecular Weight:262.284
Hs Code.:

Synonyms:5-(4-fluoro-phenyl)-1,4-dimethyl-1H-pyrazole-3-carboxylic acid ethyl ester

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Chemical Property of 5-(4-fluoro-phenyl)-1,4-dimethyl-1H-pyrazole-3-carboxylic acid ethyl ester

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Technology Process of 5-(4-fluoro-phenyl)-1,4-dimethyl-1H-pyrazole-3-carboxylic acid ethyl ester

There total 3 articles about 5-(4-fluoro-phenyl)-1,4-dimethyl-1H-pyrazole-3-carboxylic acid ethyl ester 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: 35.0%

: 74-88-4
methyl iodide

: 871362-70-8
5-(4-fluoro-phenyl)-1,4-dimethyl-1H-pyrazole-3-carboxylic acid ethyl ester

Guidance literature:: 5-(4-fluoro-phenyl)-4-iodo-1-methyl-1H-pyrazole-3-carboxylic acid ethyl ester; With n-butyllithium; In tetrahydrofuran; at -78 - -70 ℃; for 0.25h;

methyl iodide; In tetrahydrofuran; at -75 - 20 ℃; for 0.5h;

Reference yield:

: 1224924-43-9
C₁₃H₁₃FO₄

: 60-34-4
methylhydrazine

: 871362-70-8
5-(4-fluoro-phenyl)-1,4-dimethyl-1H-pyrazole-3-carboxylic acid ethyl ester

Guidance literature:: With acetic acid; In ethanol; at 20 ℃;
DOI:10.1016/j.bmcl.2013.01.116

Reference yield:

: 456-03-1
1-(4-fluorophenyl)propan-1-one

: 871362-70-8
5-(4-fluoro-phenyl)-1,4-dimethyl-1H-pyrazole-3-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 2 steps

1: -78 °C

2: acetic acid / ethanol / 20 °C

With acetic acid; In ethanol; 1: |Claisen Condensation;
DOI:10.1016/j.bmcl.2013.01.116