5-Methoxy-4-oxo-4H-pyran-2-carboxylic acid

Base Information

• Chemical Name: 5-Methoxy-4-oxo-4H-pyran-2-carboxylic acid
• CAS No.: 1199-60-6
• Molecular Formula: C7H6O5
• Molecular Weight: 170.122
• Hs Code.: 2932999099
• DSSTox Substance ID: DTXSID20475397
• Nikkaji Number: J2.092.151J
• Wikidata: Q82305908
• Mol file: 1199-60-6.mol

Synonyms:5-Methoxy-4-oxo-4H-pyran-2-carboxylic acid;1199-60-6;4H-Pyran-2-carboxylic acid, 5-methoxy-4-oxo-;5-methoxy-4-oxopyran-2-carboxylic acid;MFCD11007758;SCHEMBL3217997;DTXSID20475397;JQYYVBCIIMRLDL-UHFFFAOYSA-N;AMY30233;BAA19960;AKOS005208087;AS-66076;5-Methoxy-4-oxo-4H-pyran-2-carboxylicacid;CS-0188037;A11938;EN300-197801;F2158-0171;Z1198280173

Chemical Property of 5-Methoxy-4-oxo-4H-pyran-2-carboxylic acid

Chemical Property:

• Melting Point: 282 °C
• Boiling Point: 398.0±42.0 °C(Predicted)
• PKA: 1.70±0.20(Predicted)
• PSA: 76.74000
• Density: 1.45±0.1 g/cm3(Predicted)
• LogP: 0.34660
• XLogP3: 0
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 5
• Rotatable Bond Count: 2
• Exact Mass: 170.02152329
• Heavy Atom Count: 12
• Complexity: 286

Purity/Quality:

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

5-methoxy-4-oxo-4H-pyran-2-carboxylicacid 95% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: COC1=COC(=CC1=O)C(=O)O

Technology Process of 5-Methoxy-4-oxo-4H-pyran-2-carboxylic acid

There total 6 articles about 5-Methoxy-4-oxo-4H-pyran-2-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: 73.0%

2-Hydroxymethyl-5-methoxy-4H-pyran-4-on (6269-25-6) → 5-methoxy-4-oxo-4H-pyran-2-carboxylic acid (1199-60-6)

Guidance literature:

With Jones reagent; In acetone; for 0.666667h; Reflux;

DOI:10.1016/j.ejmech.2016.03.014

Reference yield:

5-methoxy-4H-pyran-4-one-2-carboxaldehyde (35438-43-8) → 5-methoxy-4-oxo-4H-pyran-2-carboxylic acid (1199-60-6)

Guidance literature:

With sodium hydroxide; silver(l) oxide; In water; at 20 ℃; for 3h;

Reference yield:

5-hydroxy-2-(hydroxymethyl)-4H-pyran-4-one (501-30-4,123712-78-7) + methyl iodide (74-88-4) → 5-methoxy-4-oxo-4H-pyran-2-carboxylic acid (1199-60-6)

Guidance literature:

5-hydroxy-2-(hydroxymethyl)-4H-pyran-4-one; methyl iodide; With potassium carbonate; In acetone; for 6h; Reflux;

With Jones reagent; In acetone;

DOI:10.1016/j.bmc.2020.115550

upstream raw materials:

2-Hydroxymethyl-5-methoxy-4H-pyran-4-on

comenic acid

dimethyl sulfate

5-hydroxy-2-(hydroxymethyl)-4H-pyran-4-one

Downstream raw materials:

5-methoxy-1-methyl-4-oxo-1,4-dihydro-pyridine-2-carboxylic acid

Methoxyacetone

oxalic acid

N-(2-(tert-butyldiphenylsiloxy)ethyl)-6-(2-(6-chloroquinolin-2-yl)thiazol-4-yl)-5-methoxy-1-methyl-3-(methylthio)-4-oxo-1,4-dihydropyridine-2-carboxamide

Refernces

• 1、 -. "Synthetic method for amino-containing hydroxypyridone compound". Paragraph 0102; 0105. . Retrieved 2018/09/08.
• 2、 -. "NITROGEN-CONTAINING HETEROCYCLIC COMPOUND". . . Retrieved 2017/08/01.