2,5-dichloro-3,6-diethoxy-4-hydroxy-4-<(2-methylphenyl)ethynyl>-2,5-cyclohexadien-1-one

Base Information

• Chemical Name: 2,5-dichloro-3,6-diethoxy-4-hydroxy-4-<(2-methylphenyl)ethynyl>-2,5-cyclohexadien-1-one
• CAS No.: 108213-34-9
• Molecular Formula: C₁₉H₁₈Cl₂O₄
• Molecular Weight: 381.256

Synonyms:2,5-dichloro-3,6-diethoxy-4-hydroxy-4-<(2-methylphenyl)ethynyl>-2,5-cyclohexadien-1-one

Chemical Property of 2,5-dichloro-3,6-diethoxy-4-hydroxy-4-<(2-methylphenyl)ethynyl>-2,5-cyclohexadien-1-one

Chemical Property:

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Technology Process of 2,5-dichloro-3,6-diethoxy-4-hydroxy-4-<(2-methylphenyl)ethynyl>-2,5-cyclohexadien-1-one

There total 1 articles about 2,5-dichloro-3,6-diethoxy-4-hydroxy-4-<(2-methylphenyl)ethynyl>-2,5-cyclohexadien-1-one 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:

1-ethynyl-2-methylbenzene (766-47-2) + 2,5-Dichloro-3,6-diethoxy-2,5-cyclohexadiene-1,4-dione (20764-96-9) → 2,5-dichloro-3,6-diethoxy-4-hydroxy-4-<(2-methylphenyl)ethynyl>-2,5-cyclohexadien-1-one (108213-34-9)

Guidance literature:

With n-butyllithium; Yield given. Multistep reaction; 1.) THF, hexane, -78 deg C, 30 min, 2.) THF, hexane, -78 deg C, 1 h;

DOI:10.1021/jo00388a035

Reference yield: 77.0%

2,5-dichloro-3,6-diethoxy-4-hydroxy-4-<(2-methylphenyl)ethynyl>-2,5-cyclohexadien-1-one (108213-34-9) → 3,6-dichloro-4-ethoxy-5-<(2-methylphenyl)ethynyl>-3,5-clohexadiene-1,2-dione (108213-46-3)

Guidance literature:

With sulfuric acid; trifluoroacetic anhydride; In diethyl ether; for 1h;

DOI:10.1021/jo00388a035

upstream raw materials:

1-ethynyl-2-methylbenzene

2,5-Dichloro-3,6-diethoxy-2,5-cyclohexadiene-1,4-dione

Downstream raw materials:

3,6-dichloro-4-ethoxy-5-<(2-methylphenyl)ethynyl>-3,5-clohexadiene-1,2-dione

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