2-(4-Methylphenyl)-5,6,7,8-tetrahydro-4H-<1>benzothieno<2,3-d><1,3>oxazin-4-on

Base Information

• Chemical Name: 2-(4-Methylphenyl)-5,6,7,8-tetrahydro-4H-<1>benzothieno<2,3-d><1,3>oxazin-4-on
• CAS No.: 73696-36-3
• Molecular Formula: C₁₇H₁₅NO₂S
• Molecular Weight: 297.378

Synonyms:2-(4-Methylphenyl)-5,6,7,8-tetrahydro-4H-<1>benzothieno<2,3-d><1,3>oxazin-4-on

Chemical Property of 2-(4-Methylphenyl)-5,6,7,8-tetrahydro-4H-<1>benzothieno<2,3-d><1,3>oxazin-4-on

Chemical Property:

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Technology Process of 2-(4-Methylphenyl)-5,6,7,8-tetrahydro-4H-<1>benzothieno<2,3-d><1,3>oxazin-4-on

There total 4 articles about 2-(4-Methylphenyl)-5,6,7,8-tetrahydro-4H-<1>benzothieno<2,3-d><1,3>oxazin-4-on 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: 97.0%

2-(4-Methylbenzoylamino)-4,5,6,7-tetrahydrobenzothiophen-3-carbonsaeure-ethylester (52535-70-3) → 2-(4-Methylphenyl)-5,6,7,8-tetrahydro-4H-<1>benzothieno<2,3-d><1,3>oxazin-4-on (73696-36-3)

Guidance literature:

With hexachloroethane; triethylamine; triphenylphosphine; In dichloromethane; for 2h; Heating;

Reference yield: 77.0%

2-(4-methyl-benzoylamino)-4,5,6,7-tetrahydro-benzo[b]thiophene-3-carboxylic acid (52535-75-8) → 2-(4-Methylphenyl)-5,6,7,8-tetrahydro-4H-<1>benzothieno<2,3-d><1,3>oxazin-4-on (73696-36-3)

Guidance literature:

With acetic anhydride; Heating;

Reference yield:

ethyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (4506-71-2) → 2-(4-Methylphenyl)-5,6,7,8-tetrahydro-4H-<1>benzothieno<2,3-d><1,3>oxazin-4-on (73696-36-3)

Guidance literature:

Multi-step reaction with 2 steps

1: 85 percent / Et₃N / benzene / 1 h / Heating

2: 97 percent / Ph₃P, C₂Cl₆, Et₃N / CH₂Cl₂ / 2 h / Heating

With hexachloroethane; triethylamine; triphenylphosphine; In dichloromethane; benzene;

upstream raw materials:

2-(4-methyl-benzoylamino)-4,5,6,7-tetrahydro-benzo[b]thiophene-3-carboxylic acid

2-(4-Methylbenzoylamino)-4,5,6,7-tetrahydrobenzothiophen-3-carbonsaeure-ethylester

ethyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate

4-methyl-benzoyl chloride

Downstream raw materials:

2-(4-Methyl-phenyl)-5,6,7,8-tetrahydro-(1)benzothieno<2,3-d>1,3-thiazin-4-thion

5-(4-Methyl-phenyl)-2,3,8,9,10,11-hexahydro-benzothieno<3,2-e>imidazo<1,2-c>pyrimidinhydrochlorid

3-(2-Hydroxy-ethyl)-2-p-tolyl-5,6,7,8-tetrahydro-3H-benzo[4,5]thieno[2,3-d]pyrimidine-4-thione

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