1H-Pyrazole-3-carboxylicacid,4-cyano-1-methyl-,methylester(9CI)

Base Information

• Chemical Name: 1H-Pyrazole-3-carboxylicacid,4-cyano-1-methyl-,methylester(9CI)
• CAS No.: 105020-37-9
• Molecular Formula: C₇H₇N₃O₂
• Molecular Weight: 165.151
• Hs Code.: 2933199090
• Mol file: 105020-37-9.mol

Synonyms:1H-Pyrazole-3-carboxylicacid,4-cyano-1-methyl-,methylester(9CI)

Chemical Property of 1H-Pyrazole-3-carboxylicacid,4-cyano-1-methyl-,methylester(9CI)

Chemical Property:

• PSA: 67.91000
• LogP: 0.07838

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 1H-Pyrazole-3-carboxylicacid,4-cyano-1-methyl-,methylester(9CI)

There total 13 articles about 1H-Pyrazole-3-carboxylicacid,4-cyano-1-methyl-,methylester(9CI) 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: 78.0%

diazomethane (24153-51-3,175791-16-9,353495-36-0,6843-83-0) + trans-4,5-Dicyan-4,5-dihydro-1H-pyrazol-4,5-dicarbonsaeure-dimethylester (105020-40-4) → methyl 1-methyl-1H-1,2,3-triazole-5-carboxylate (105020-38-0) + 2-Methyl-1,2,3-triazol-4-carbonsaeure-methylester (105020-39-1) + 4-Cyan-1-methyl-3-pyrazolcarbonsaeure-methylester (105020-37-9) + 4-Cyan-1-methyl-5-pyrazolcarbonsaeure-methylester (70910-18-8)

Guidance literature:

In tetrahydrofuran; at 20 ℃; for 26h; Further byproducts given;

DOI:10.3987/R-1986-09-2429

Reference yield: 78.0%

diazomethane (24153-51-3,175791-16-9,353495-36-0,6843-83-0) + trans-4,5-Dicyan-4,5-dihydro-1H-pyrazol-4,5-dicarbonsaeure-dimethylester (105020-40-4) → 2-Methyl-1,2,3-triazol-4-carbonsaeure-methylester (105020-39-1) + 4-Cyan-1-methyl-3-pyrazolcarbonsaeure-methylester (105020-37-9) + 4-Cyan-1-methyl-5-pyrazolcarbonsaeure-methylester (70910-18-8) + 1-Methyl-1,2,3-triazol-4-carbonsaeure-methylester (57362-82-0)

Guidance literature:

In tetrahydrofuran; at 20 ℃; for 26h;

DOI:10.3987/R-1986-09-2429

Reference yield: 68.0%

diazomethane (24153-51-3,175791-16-9,353495-36-0,6843-83-0) + dimethyl 2,3-dicyanofumarate (35234-87-8) → methyl 1-methyl-1H-1,2,3-triazole-5-carboxylate (105020-38-0) + 4-Cyan-1-methyl-3-pyrazolcarbonsaeure-methylester (105020-37-9) + 4-Cyan-1-methyl-5-pyrazolcarbonsaeure-methylester (70910-18-8) + 1-Methyl-1,2,3-triazol-4-carbonsaeure-methylester (57362-82-0)

Guidance literature:

In tetrahydrofuran; at 20 ℃; for 96h; Further byproducts given;

DOI:10.3987/R-1986-09-2429

upstream raw materials:

diazomethane

dimethyl 2,3-dicyanofumarate

4-Cyano-1H-pyrazole-3-carboxylic acid methyl ester

diazomethane

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