4-Isopropyl-3-oxo-2-phenyl-3,4-dihydro-2H-benzo[1,4]oxazine-7-carboxylic acid methyl ester

Base Information

• Chemical Name: 4-Isopropyl-3-oxo-2-phenyl-3,4-dihydro-2H-benzo[1,4]oxazine-7-carboxylic acid methyl ester
• CAS No.: 201294-55-5
• Molecular Formula: C₁₉H₁₉NO₄
• Molecular Weight: 325.364

Synonyms:4-Isopropyl-3-oxo-2-phenyl-3,4-dihydro-2H-benzo[1,4]oxazine-7-carboxylic acid methyl ester

Chemical Property of 4-Isopropyl-3-oxo-2-phenyl-3,4-dihydro-2H-benzo[1,4]oxazine-7-carboxylic acid methyl ester

Chemical Property:

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Technology Process of 4-Isopropyl-3-oxo-2-phenyl-3,4-dihydro-2H-benzo[1,4]oxazine-7-carboxylic acid methyl ester

There total 2 articles about 4-Isopropyl-3-oxo-2-phenyl-3,4-dihydro-2H-benzo[1,4]oxazine-7-carboxylic acid methyl 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: 36.0%

3-Oxo-2-phenyl-3,4-dihydro-2H-benzo[1,4]oxazine-7-carboxylic acid methyl ester (201294-18-0) → 4-Isopropyl-3-oxo-2-phenyl-3,4-dihydro-2H-benzo[1,4]oxazine-7-carboxylic acid methyl ester (201294-55-5)

Guidance literature:

With sodium hydride; In N,N-dimethyl-formamide; at 60 ℃;

DOI:10.1248/cpb.45.1975

Reference yield:

3-hydroxy-4-aminobenzoic acid methyl ester (63435-16-5) → 4-Isopropyl-3-oxo-2-phenyl-3,4-dihydro-2H-benzo[1,4]oxazine-7-carboxylic acid methyl ester (201294-55-5)

Guidance literature:

Multi-step reaction with 2 steps

1: 68 percent / aq. NaHCO₃ / ethyl acetate / 0.5 h / Ambient temperature

2: 36 percent / NaH / dimethylformamide / 60 °C

With sodium hydride; sodium hydrogencarbonate; In ethyl acetate; N,N-dimethyl-formamide;

DOI:10.1248/cpb.45.1975

Reference yield:

guanidine hydrochloride (50-01-1) + 4-Isopropyl-3-oxo-2-phenyl-3,4-dihydro-2H-benzo[1,4]oxazine-7-carboxylic acid methyl ester (201294-55-5) → N-(4-Isopropyl-3-oxo-2-phenyl-3,4-dihydro-2H-benzo[1,4]oxazine-7-carbonyl)-guanidine

Guidance literature:

With methanol; sodium methylate; Multistep reaction; 1.) reflux, 30 min, 2.) reflux;

DOI:10.1248/cpb.45.1975

upstream raw materials:

3-Oxo-2-phenyl-3,4-dihydro-2H-benzo[1,4]oxazine-7-carboxylic acid methyl ester

3-hydroxy-4-aminobenzoic acid methyl ester

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