2-Methyl-5,5-dioxo-4-phenyl-4,5-dihydro-1H-5λ⁶-benzo[4,5]thieno[3,2-b]pyridine-3-carbothioic acid O-ethyl ester

Base Information

• Chemical Name: 2-Methyl-5,5-dioxo-4-phenyl-4,5-dihydro-1H-5λ⁶-benzo[4,5]thieno[3,2-b]pyridine-3-carbothioic acid O-ethyl ester
• CAS No.: 111677-46-4
• Molecular Formula: C₂₁H₁₉NO₃S₂
• Molecular Weight: 397.519

Synonyms:2-Methyl-5,5-dioxo-4-phenyl-4,5-dihydro-1H-5λ⁶-benzo[4,5]thieno[3,2-b]pyridine-3-carbothioic acid O-ethyl ester

Chemical Property of 2-Methyl-5,5-dioxo-4-phenyl-4,5-dihydro-1H-5λ⁶-benzo[4,5]thieno[3,2-b]pyridine-3-carbothioic acid O-ethyl ester

Chemical Property:

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Technology Process of 2-Methyl-5,5-dioxo-4-phenyl-4,5-dihydro-1H-5λ⁶-benzo[4,5]thieno[3,2-b]pyridine-3-carbothioic acid O-ethyl ester

There total 2 articles about 2-Methyl-5,5-dioxo-4-phenyl-4,5-dihydro-1H-5λ⁶-benzo[4,5]thieno[3,2-b]pyridine-3-carbothioic acid O-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: 93.0%

2-[(Ξ)-benzylidene-1,1-dioxo-1λ6-benzo[b]thiophen-3-one (25625-01-8) + Acetothioacetic Acid O-Ethyl Ester (41500-02-1) → 2-Methyl-5,5-dioxo-4-phenyl-4,5-dihydro-1H-5λ6-benzo[4,5]thieno[3,2-b]pyridine-3-carbothioic acid O-ethyl ester (111677-46-4)

Guidance literature:

With ammonium acetate; In acetic acid; for 0.166667h; Heating;

DOI:10.1007/BF00471815

Reference yield: 60.0%

2-[(Ξ)-benzylidene-1,1-dioxo-1λ6-benzo[b]thiophen-3-one (25625-01-8) + β-Aminothiocrotonic Acid O-Ethyl Ester (111677-59-9) → 2-Methyl-5,5-dioxo-4-phenyl-4,5-dihydro-1H-5λ6-benzo[4,5]thieno[3,2-b]pyridine-3-carbothioic acid O-ethyl ester (111677-46-4)

Guidance literature:

In acetic acid; for 0.5h; Heating;

DOI:10.1007/BF00471815

upstream raw materials:

2-[(Ξ)-benzylidene-1,1-dioxo-1λ⁶-benzo[b]thiophen-3-one

Acetothioacetic Acid O-Ethyl Ester

β-Aminothiocrotonic Acid O-Ethyl Ester

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