2-Amino-5-methylthiophene-3-carboxamide

Base Information

• Chemical Name: 2-Amino-5-methylthiophene-3-carboxamide
• CAS No.: 51486-03-4
• Molecular Formula: C₆H₈N₂OS
• Molecular Weight: 156.208
• Hs Code.: 2934999090
• European Community (EC) Number: 809-447-3
• DSSTox Substance ID: DTXSID50545299
• Wikidata: Q72439770
• Mol file: 51486-03-4.mol

Synonyms:2-Amino-5-methylthiophene-3-carboxamide;51486-03-4;2-Amino-5-methyl-3-thiophenecarboxamide;MFCD00082804;3-Thiophenecarboxamide,2-amino-5-methyl-;SCHEMBL166884;DTXSID50545299;DVGHAYAFIHAXOR-UHFFFAOYSA-N;BCA48603;AKOS000111621;AB03142;TS-00088;CS-0153272;EN300-67176;C75414;A871268;J-507962;Z406284828

Chemical Property of 2-Amino-5-methylthiophene-3-carboxamide

Chemical Property:

• Boiling Point: 274.244 °C at 760 mmHg
• Flash Point: 119.659 °C
• PSA: 97.35000
• Density: 1.345 g/cm³
• LogP: 2.01910
• Storage Temp.: under inert gas (nitrogen or Argon) at 2–8 °C
• XLogP3: 1.1
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 1
• Exact Mass: 156.03573406
• Heavy Atom Count: 10
• Complexity: 151

Purity/Quality:

97% ^*data from raw suppliers

2-amino-5-methylthiophene-3-carboxamide ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC1=CC(=C(S1)N)C(=O)N

Technology Process of 2-Amino-5-methylthiophene-3-carboxamide

There total 5 articles about 2-Amino-5-methylthiophene-3-carboxamide 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: 71.0%

propionaldehyde (123-38-6) + cyanoacetic acid amide (107-91-5) → 2-amino-5-methylthiophene-3-carboxamide (51486-03-4)

Guidance literature:

With sulfur; triethylamine; In ethanol; at 50 - 55 ℃; for 4h;

DOI:10.1016/j.bioorg.2019.103346

Reference yield: 69.0%

2-amino-5-methylthiophene-3-carbonitrile (138564-58-6) → 2-amino-5-methylthiophene-3-carboxamide (51486-03-4)

Guidance literature:

2-amino-5-methylthiophene-3-carbonitrile; With sulfuric acid; at 20 ℃; for 20h;

With sodium hydroxide; In water; at 0 ℃; pH=7;

Reference yield: 53.0%

butyraldehyde (123-72-8) + cyanoacetic acid amide (107-91-5) → 2-amino-5-methylthiophene-3-carboxamide (51486-03-4)

Guidance literature:

With sulfur; In ethanol; at 60 ℃; for 1.5h;

upstream raw materials:

propionaldehyde

cyanoacetic acid amide

2-amino-5-methylthiophene-3-carbonitrile

butyraldehyde

Downstream raw materials:

(4-fluorophenyl)(6-methyl-4-(5-methyl-1H-pyrazol-3-ylamino)thieno[2,3-d]pyrimidin-2-yl)methanol

(4-chloro-6-methylthieno[2,3-d]pyrimidin-2-yl)(4-fluorophenyl)methanone

(4-fluorophenyl)(6-methyl-4-(5-methyl-1H-pyrazol-3-ylamino)thieno[2,3-d]pyrimidin-2-yl)methanone

2,6-dimethyl-thieno[2,3-d]pyrimidin-4-one

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