5-Benzoylamino-6-oxo-2-((E)-2-p-tolylamino-vinyl)-6H-pyran-3-carboxylic acid ethyl ester

Base Information

• Chemical Name: 5-Benzoylamino-6-oxo-2-((E)-2-p-tolylamino-vinyl)-6H-pyran-3-carboxylic acid ethyl ester
• CAS No.: 181578-04-1
• Molecular Formula: C₂₄H₂₂N₂O₅
• Molecular Weight: 418.449

Synonyms:5-Benzoylamino-6-oxo-2-((E)-2-p-tolylamino-vinyl)-6H-pyran-3-carboxylic acid ethyl ester

Chemical Property of 5-Benzoylamino-6-oxo-2-((E)-2-p-tolylamino-vinyl)-6H-pyran-3-carboxylic acid ethyl ester

Chemical Property:

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Technology Process of 5-Benzoylamino-6-oxo-2-((E)-2-p-tolylamino-vinyl)-6H-pyran-3-carboxylic acid ethyl ester

There total 2 articles about 5-Benzoylamino-6-oxo-2-((E)-2-p-tolylamino-vinyl)-6H-pyran-3-carboxylic acid ethyl ester 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: 92.0%

p-toluidine (106-49-0,12221-03-3) + 5-Benzoylamino-2-((E)-2-dimethylamino-vinyl)-6-oxo-6H-pyran-3-carboxylic acid ethyl ester (181578-01-8) → 5-Benzoylamino-6-oxo-2-((E)-2-p-tolylamino-vinyl)-6H-pyran-3-carboxylic acid ethyl ester (181578-04-1)

Guidance literature:

With hydrogenchloride; In ethanol; for 3h; Heating;

DOI:10.1002/jhet.5570330338

Reference yield:

ethyl 3-(benzoylamino)-6-methyl-2-oxo-2H-pyran-5-carboxylate (97497-15-9) → 5-Benzoylamino-6-oxo-2-((E)-2-p-tolylamino-vinyl)-6H-pyran-3-carboxylic acid ethyl ester (181578-04-1)

Guidance literature:

Multi-step reaction with 2 steps

1: 69 percent / toluene / 7 h / Heating

2: 92 percent / HCl / ethanol / 3 h / Heating

With hydrogenchloride; In ethanol; toluene;

DOI:10.1002/jhet.5570330338

Reference yield: 43.0%

5-Benzoylamino-6-oxo-2-((E)-2-p-tolylamino-vinyl)-6H-pyran-3-carboxylic acid ethyl ester (181578-04-1) → N-(2,5-Dioxo-6-p-tolyl-5,6-dihydro-2H-pyrano[3,2-c]pyridin-3-yl)-benzamide

Guidance literature:

With sodium ethanolate; In ethanol; for 0.5h; Ambient temperature;

DOI:10.1002/jhet.5570330338

upstream raw materials:

p-toluidine

5-Benzoylamino-2-((E)-2-dimethylamino-vinyl)-6-oxo-6H-pyran-3-carboxylic acid ethyl ester

ethyl 3-(benzoylamino)-6-methyl-2-oxo-2H-pyran-5-carboxylate

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