1-phenyl-5-(thiophen-2-yl)-1H-pyrazole-3-carboxylic acid

Base Information

• Chemical Name: 1-phenyl-5-(thiophen-2-yl)-1H-pyrazole-3-carboxylic acid
• CAS No.: 220192-02-9
• Molecular Formula: C₁₄H₁₀N₂O₂S
• Molecular Weight: 270.312
• Hs Code.: 2934999090
• DSSTox Substance ID: DTXSID00378014
• Wikidata: Q82167441
• Mol file: 220192-02-9.mol

Synonyms:220192-02-9;1-Phenyl-5-(2-thienyl)-1H-pyrazole-3-carboxylic acid;1-phenyl-5-(thiophen-2-yl)-1H-pyrazole-3-carboxylic acid;1-phenyl-5-thiophen-2-ylpyrazole-3-carboxylic acid;MFCD06245378;5-(2-THIENYL)-1-PHENYL-1H-PYRAZOLE-3-CARBOXYLIC ACID;5-(2-THIOPHENYL)-1-PHENYL-1H-PYRAZOLE-3-CARBOXYLIC ACID;DTXSID00378014;BBL021599;STK894312;AKOS000199398;FT-0650891;EN300-96820;AT-057/43485299;1-Phenyl-5-thien-2-yl-1H-pyrazole-3-carboxylic acid;Z285224796

Chemical Property of 1-phenyl-5-(thiophen-2-yl)-1H-pyrazole-3-carboxylic acid

Chemical Property:

• Vapor Pressure: 9.5E-11mmHg at 25°C
• Refractive Index: 1.697
• Boiling Point: 498.3 °C at 760 mmHg
• Flash Point: 255.2 °C
• PSA: 83.36000
• Density: 1.37g/cm³
• LogP: 3.29900
• Storage Temp.: 2-8°C
• XLogP3: 3.1
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 3
• Exact Mass: 270.04629874
• Heavy Atom Count: 19
• Complexity: 333

Purity/Quality:

98%min ^*data from raw suppliers

1-Phenyl-5-(thiophen-2-yl)-1H-pyrazole-3-carboxylicAcid ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1=CC=C(C=C1)N2C(=CC(=N2)C(=O)O)C3=CC=CS3

Technology Process of 1-phenyl-5-(thiophen-2-yl)-1H-pyrazole-3-carboxylic acid

There total 4 articles about 1-phenyl-5-(thiophen-2-yl)-1H-pyrazole-3-carboxylic acid 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: 85.0%

phenylhydrazine (100-63-0) + (Z)-2-hydroxy-4-oxo-4-(thiophen-2-yl)but-2-enoic acid → 1-phenyl-5-[2]thienyl-pyrazole-3-carboxylic acid (220192-02-9)

Guidance literature:

In isopropyl alcohol; for 1h; Heating;

DOI:10.1007/BF02539222

Reference yield:

2-Acetylthiophene (88-15-3,97511-16-5) → 1-phenyl-5-[2]thienyl-pyrazole-3-carboxylic acid (220192-02-9)

Guidance literature:

Multi-step reaction with 2 steps

1: 55 percent / NaOMe / methanol / 24 h

2: 85 percent / propan-2-ol / 1 h / Heating

With sodium methylate; In methanol; isopropyl alcohol; 1: Claisen condensation / 2: Condensation;

DOI:10.1007/BF02539222

Reference yield:

ethyl 1-phenyl-5-(thiophen-2-yl)-1H-pyrazole-3-carboxylate → 1-phenyl-5-[2]thienyl-pyrazole-3-carboxylic acid (220192-02-9)

Guidance literature:

With potassium hydroxide;

upstream raw materials:

phenylhydrazine

2-Acetylthiophene