Ethyl 6,8-dimethyl-4-oxopyrido[1,2-a]pyrimidine-3-carboxylate

Base Information

• Chemical Name: Ethyl 6,8-dimethyl-4-oxopyrido[1,2-a]pyrimidine-3-carboxylate
• CAS No.: 16867-54-2
• Molecular Formula: C13H14N2O3
• Molecular Weight: 246.26200
• DSSTox Substance ID: DTXSID20344751
• Nikkaji Number: J45.154A
• Wikidata: Q63396255
• Mol file: 16867-54-2.mol

Synonyms:16867-54-2;ethyl 6,8-dimethyl-4-oxopyrido[1,2-a]pyrimidine-3-carboxylate;6,8-Dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylic acid ethyl ester;4H-Pyrido[1,2-a]pyrimidine-3-carboxylic acid, 6,8-dimethyl-4-oxo-, ethyl ester;6,8-DIMETHYL-4-OXO-4H-PYRIDO(1,2-A)PYRIMIDINE-3-CARBOXYLIC ACID ETHYL ESTER;DTXSID20344751;Q63396255;3-carboethoxy-6,8-dimethyl-4H-pyrido[1,2-a]pyrimidin-4-one;Ethyl 6,8-dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylate #

Chemical Property of Ethyl 6,8-dimethyl-4-oxopyrido[1,2-a]pyrimidine-3-carboxylate

Chemical Property:

• PSA: 60.67000
• LogP: 1.48800
• XLogP3: 0.9
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 3
• Exact Mass: 246.10044231
• Heavy Atom Count: 18
• Complexity: 538

Purity/Quality:

99.90% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CCOC(=O)C1=CN=C2C=C(C=C(N2C1=O)C)C

Technology Process of Ethyl 6,8-dimethyl-4-oxopyrido[1,2-a]pyrimidine-3-carboxylate

There total 6 articles about Ethyl 6,8-dimethyl-4-oxopyrido[1,2-a]pyrimidine-3-carboxylate 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:

diethyl 2-(4,6-dimethylpyridin-2-yl)aminomethylenemalonate (92649-03-1) → ethyl 6,8-dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylate (16867-54-2)

Guidance literature:

at 450 ℃; under 0.00225023 - 0.00375038 Torr;

DOI:10.1002/ejoc.202001110

Reference yield:

diethyl 2-(4,6-dimethylpyridin-2-yl)aminomethylenemalonate (92649-03-1) → ethyl 6,8-dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylate (16867-54-2) + ethyl 5,7-dimethyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylate (57773-27-0)

Guidance literature:

In diphenylether; at 260 ℃; for 0.333333h;

DOI:10.1002/ejoc.202001110

Reference yield:

diethyl 2-ethoxymethylenemalonate (87-13-8) → ethyl 6,8-dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylate (16867-54-2)

Guidance literature:

Multi-step reaction with 2 steps

1: ethanol / 0.33 h / 130 °C / Microwave irradiation; Sealed tube

2: diphenylether / 0.33 h / 260 °C

In diphenylether; ethanol;

DOI:10.1002/ejoc.202001110

upstream raw materials:

diethyl 2-ethoxymethylenemalonate

2-Amino-4,6-dimethylpyridine

diethyl 2-(4,6-dimethylpyridin-2-yl)aminomethylenemalonate

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