3,7-dimethoxy-11,11,12-tris(4-methoxyphenyl)-11Hbenzo[5,6]pentaleno[1,2-b]naphthalene-5-one

Base Information

• Chemical Name: 3,7-dimethoxy-11,11,12-tris(4-methoxyphenyl)-11Hbenzo[5,6]pentaleno[1,2-b]naphthalene-5-one
• CAS No.: 1259944-71-2
• Molecular Formula: C₄₃H₃₄O₆
• Molecular Weight: 646.739

Synonyms:3,7-dimethoxy-11,11,12-tris(4-methoxyphenyl)-11Hbenzo[5,6]pentaleno[1,2-b]naphthalene-5-one

Chemical Property of 3,7-dimethoxy-11,11,12-tris(4-methoxyphenyl)-11Hbenzo[5,6]pentaleno[1,2-b]naphthalene-5-one

Chemical Property:

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Technology Process of 3,7-dimethoxy-11,11,12-tris(4-methoxyphenyl)-11Hbenzo[5,6]pentaleno[1,2-b]naphthalene-5-one

There total 4 articles about 3,7-dimethoxy-11,11,12-tris(4-methoxyphenyl)-11Hbenzo[5,6]pentaleno[1,2-b]naphthalene-5-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: 76.0%

9-methoxy-5-[1,1-bis(4-methoxyphenyl)-1-hydroxymethyl]-2,2-bis(4-methoxyphenyl)-2H-naphtho[1,2-b]pyran (1259944-67-6) → 3,7-dimethoxy-11,11,12-tris(4-methoxyphenyl)-11Hbenzo[5,6]pentaleno[1,2-b]naphthalene-5-one (1259944-71-2)

Guidance literature:

With toluene-4-sulfonic acid; In toluene; at 60 ℃; for 20h;

DOI:10.1039/c0cc02986f

Reference yield:

ethyl 4-hydroxy-6-methoxynaphthalene-2-carboxylate (538343-03-2) → 3,7-dimethoxy-11,11,12-tris(4-methoxyphenyl)-11Hbenzo[5,6]pentaleno[1,2-b]naphthalene-5-one (1259944-71-2)

Guidance literature:

Multi-step reaction with 3 steps

1.1: aluminum oxide / toluene / Reflux

2.1: n-butyllithium / tetrahydrofuran; hexane; cyclohexane / 2 h / -70 °C / Inert atmosphere

2.2: -70 - 20 °C / Inert atmosphere

3.1: toluene-4-sulfonic acid / toluene / 20 h / 60 °C

With aluminum oxide; n-butyllithium; toluene-4-sulfonic acid; In tetrahydrofuran; hexane; cyclohexane; toluene;

DOI:10.1016/j.dyepig.2011.07.004

Reference yield:

1,1-bis(4-methoxyphenyl)-2-propyn-1-ol (101597-25-5) → 3,7-dimethoxy-11,11,12-tris(4-methoxyphenyl)-11Hbenzo[5,6]pentaleno[1,2-b]naphthalene-5-one (1259944-71-2)

Guidance literature:

Multi-step reaction with 3 steps

1.1: aluminum oxide / toluene / Reflux

2.1: n-butyllithium / tetrahydrofuran; hexane; cyclohexane / 2 h / -70 °C / Inert atmosphere

2.2: -70 - 20 °C / Inert atmosphere

3.1: toluene-4-sulfonic acid / toluene / 20 h / 60 °C

With aluminum oxide; n-butyllithium; toluene-4-sulfonic acid; In tetrahydrofuran; hexane; cyclohexane; toluene;

DOI:10.1016/j.dyepig.2011.07.004

upstream raw materials:

9-methoxy-5-[1,1-bis(4-methoxyphenyl)-1-hydroxymethyl]-2,2-bis(4-methoxyphenyl)-2H-naphtho[1,2-b]pyran

1,1-bis(4-methoxyphenyl)-2-propyn-1-ol

ethyl 4-hydroxy-6-methoxynaphthalene-2-carboxylate

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