4-Hydroxy-1,1-dioxo-1,2-dihydro-1λ⁶-benzo[e][1,2]thiazine-3-carboxylic acid 2-ethoxy-ethyl ester

Base Information

• Chemical Name: 4-Hydroxy-1,1-dioxo-1,2-dihydro-1λ⁶-benzo[e][1,2]thiazine-3-carboxylic acid 2-ethoxy-ethyl ester
• CAS No.: 107124-71-0
• Molecular Formula: C₁₃H₁₅NO₆S
• Molecular Weight: 313.331

Synonyms:4-Hydroxy-1,1-dioxo-1,2-dihydro-1λ⁶-benzo[e][1,2]thiazine-3-carboxylic acid 2-ethoxy-ethyl ester

Chemical Property of 4-Hydroxy-1,1-dioxo-1,2-dihydro-1λ⁶-benzo[e][1,2]thiazine-3-carboxylic acid 2-ethoxy-ethyl ester

Chemical Property:

Purity/Quality:

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MSDS Files:

SDS file from LookChem

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Technology Process of 4-Hydroxy-1,1-dioxo-1,2-dihydro-1λ⁶-benzo[e][1,2]thiazine-3-carboxylic acid 2-ethoxy-ethyl ester

There total 2 articles about 4-Hydroxy-1,1-dioxo-1,2-dihydro-1λ⁶-benzo[e][1,2]thiazine-3-carboxylic acid 2-ethoxy-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: 47.0%

methyl 3-oxo-2,3-dihydrobenzo[d][1,2]thiazol-2-acetate 1,1-dioxide (6639-62-9) → 4-Hydroxy-1,1-dioxo-1,2-dihydro-1λ6-benzo[e][1,2]thiazine-3-carboxylic acid 2-ethoxy-ethyl ester (107124-71-0) + methyl 4-hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide (35511-14-9)

Guidance literature:

With 2-ethoxy-ethanol; sodium; Yield given. Multistep reaction;

Reference yield: 27.0%

2-ethoxy-ethanol (110-80-5) + methyl 3-oxo-2,3-dihydrobenzo[d][1,2]thiazol-2-acetate 1,1-dioxide (6639-62-9) → 4-Hydroxy-1,1-dioxo-1,2-dihydro-1λ6-benzo[e][1,2]thiazine-3-carboxylic acid 2-ethoxy-ethyl ester (107124-71-0) + methyl 4-hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide (35511-14-9)

Guidance literature:

With sodium; Yield given. Multistep reaction;

Reference yield:

4-Hydroxy-1,1-dioxo-1,2-dihydro-1λ6-benzo[e][1,2]thiazine-3-carboxylic acid 2-ethoxy-ethyl ester (107124-71-0) → Piroxicam (36322-90-4)

Guidance literature:

Multi-step reaction with 2 steps

1: NaOH / 1,2-dichloroethane

2: 92 percent / xylene / 6 h / Heating

With sodium hydroxide; 1,2-dichloro-ethane; In xylene;

upstream raw materials:

2-ethoxy-ethanol

methyl 3-oxo-2,3-dihydrobenzo[d][1,2]thiazol-2-acetate 1,1-dioxide

Downstream raw materials:

Piroxicam

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