ethyl 7-ethyl-1,10-dioxo-3-phenyl-7,10-dihydro-1H-pyrano[3,2-f]quinoline-9-carboxylate

Base Information

• Chemical Name: ethyl 7-ethyl-1,10-dioxo-3-phenyl-7,10-dihydro-1H-pyrano[3,2-f]quinoline-9-carboxylate
• CAS No.: 1492929-15-3
• Molecular Formula: C₂₃H₁₉NO₅
• Molecular Weight: 389.408

Synonyms:ethyl 7-ethyl-1,10-dioxo-3-phenyl-7,10-dihydro-1H-pyrano[3,2-f]quinoline-9-carboxylate

Chemical Property of ethyl 7-ethyl-1,10-dioxo-3-phenyl-7,10-dihydro-1H-pyrano[3,2-f]quinoline-9-carboxylate

Chemical Property:

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Technology Process of ethyl 7-ethyl-1,10-dioxo-3-phenyl-7,10-dihydro-1H-pyrano[3,2-f]quinoline-9-carboxylate

There total 4 articles about ethyl 7-ethyl-1,10-dioxo-3-phenyl-7,10-dihydro-1H-pyrano[3,2-f]quinoline-9-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: 89.0%

ethyl 1,10-dioxo-3-phenyl-7,10-dihydro-1H-pyrano-[3,2-f]quinoline-9-carboxylate (1492929-14-2) + ethyl iodide (75-03-6) → ethyl 7-ethyl-1,10-dioxo-3-phenyl-7,10-dihydro-1H-pyrano[3,2-f]quinoline-9-carboxylate (1492929-15-3)

Guidance literature:

With potassium carbonate; In ethanol; for 10h; Reflux;

DOI:10.5560/ZNB.2013-3122

Reference yield:

diethyl 2-ethoxymethylenemalonate (87-13-8) → ethyl 7-ethyl-1,10-dioxo-3-phenyl-7,10-dihydro-1H-pyrano[3,2-f]quinoline-9-carboxylate (1492929-15-3)

Guidance literature:

Multi-step reaction with 3 steps

1: 2 h / 130 - 140 °C

2: diphenylether / 1 h / 245 - 250 °C

3: potassium carbonate / ethanol / 10 h / Reflux

With potassium carbonate; In diphenylether; ethanol; 2: |Gould-Jacobs Reaction;

DOI:10.5560/ZNB.2013-3122

Reference yield:

6-amino-2-phenyl-4H-1-benzopyran-4-one (4613-53-0) → ethyl 7-ethyl-1,10-dioxo-3-phenyl-7,10-dihydro-1H-pyrano[3,2-f]quinoline-9-carboxylate (1492929-15-3)

Guidance literature:

Multi-step reaction with 3 steps

1: 2 h / 130 - 140 °C

2: diphenylether / 1 h / 245 - 250 °C

3: potassium carbonate / ethanol / 10 h / Reflux

With potassium carbonate; In diphenylether; ethanol; 2: |Gould-Jacobs Reaction;

DOI:10.5560/ZNB.2013-3122

upstream raw materials:

diethyl 2-ethoxymethylenemalonate

6-amino-2-phenyl-4H-1-benzopyran-4-one

ethyl 1,10-dioxo-3-phenyl-7,10-dihydro-1H-pyrano-[3,2-f]quinoline-9-carboxylate

ethyl iodide

Downstream raw materials:

7-ethyl-1,10-dioxo-3-phenyl-7,10-dihydro-1H-pyrano-[3,2-f]quinoline-9-carboxylic acid

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