1-phenyl-3H-<1>benzothieno<2,3-c>pyran-3-thione 9,9-dioxide

Base Information

• Chemical Name: 1-phenyl-3H-<1>benzothieno<2,3-c>pyran-3-thione 9,9-dioxide
• CAS No.: 87894-79-9
• Molecular Formula: C₁₇H₁₀O₃S₂
• Molecular Weight: 326.397

Synonyms:

Chemical Property of 1-phenyl-3H-<1>benzothieno<2,3-c>pyran-3-thione 9,9-dioxide

Chemical Property:

Purity/Quality:

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Technology Process of 1-phenyl-3H-<1>benzothieno<2,3-c>pyran-3-thione 9,9-dioxide

There total 3 articles about 1-phenyl-3H-<1>benzothieno<2,3-c>pyran-3-thione 9,9-dioxide 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:

ethyl benzothiophen-3-ylacetate (7597-68-4) → 1-phenyl-3H-<1>benzothieno<2,3-c>pyran-3-thione 9,9-dioxide (87894-79-9)

Guidance literature:

Multi-step reaction with 3 steps

1: 97 percent / polyphosphoric acid / 2 h / 115 °C

2: 85 percent / 28percent hydrogen peroxide / acetic acid; acetic anhydride / Heating

3: 66 percent / tetraphosphorus decasulphide / xylene / 8 h / Heating

With PPA; tetraphosphorus decasulfide; dihydrogen peroxide; In acetic anhydride; acetic acid; xylene;

DOI:10.1039/P19830001427

Reference yield:

1-phenyl-3H-<1>benzothieno<2,3-c>pyran-3-one (87894-73-3) → 1-phenyl-3H-<1>benzothieno<2,3-c>pyran-3-thione 9,9-dioxide (87894-79-9)

Guidance literature:

Multi-step reaction with 2 steps

1: 85 percent / 28percent hydrogen peroxide / acetic acid; acetic anhydride / Heating

2: 66 percent / tetraphosphorus decasulphide / xylene / 8 h / Heating

With tetraphosphorus decasulfide; dihydrogen peroxide; In acetic anhydride; acetic acid; xylene;

DOI:10.1039/P19830001427

Reference yield:

benzoic acid (65-85-0,8013-63-6) → 1-phenyl-3H-<1>benzothieno<2,3-c>pyran-3-thione 9,9-dioxide (87894-79-9)

Guidance literature:

Multi-step reaction with 3 steps

1: 97 percent / polyphosphoric acid / 2 h / 115 °C

2: 85 percent / 28percent hydrogen peroxide / acetic acid; acetic anhydride / Heating

3: 66 percent / tetraphosphorus decasulphide / xylene / 8 h / Heating

With PPA; tetraphosphorus decasulfide; dihydrogen peroxide; In acetic anhydride; acetic acid; xylene;

DOI:10.1039/P19830001427

upstream raw materials:

ethyl benzothiophen-3-ylacetate

1-phenyl-3H-<1>benzothieno<2,3-c>pyran-3-one

benzoic acid

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