1-ethyl 3-methyl 4-hydroxy-2-[4-(trifluoromethyl)phenyl]cyclohepta-1,3-diene-1,3-dicarboxylate

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Chemical Name:1-ethyl 3-methyl 4-hydroxy-2-[4-(trifluoromethyl)phenyl]cyclohepta-1,3-diene-1,3-dicarboxylate
CAS No.:1263677-02-6
Molecular Formula:C₁₉H₁₉F₃O₅
Molecular Weight:384.352
Hs Code.:

Synonyms:1-ethyl 3-methyl 4-hydroxy-2-[4-(trifluoromethyl)phenyl]cyclohepta-1,3-diene-1,3-dicarboxylate

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Chemical Property of 1-ethyl 3-methyl 4-hydroxy-2-[4-(trifluoromethyl)phenyl]cyclohepta-1,3-diene-1,3-dicarboxylate

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Technology Process of 1-ethyl 3-methyl 4-hydroxy-2-[4-(trifluoromethyl)phenyl]cyclohepta-1,3-diene-1,3-dicarboxylate

There total 3 articles about 1-ethyl 3-methyl 4-hydroxy-2-[4-(trifluoromethyl)phenyl]cyclohepta-1,3-diene-1,3-dicarboxylate 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: 73.0%

: 220652-97-1
methyl 3-[4-(trifluoromethyl)phenyl]prop-2-ynoate

: 611-10-9
2-ethoxycarbonyl-1-cyclopentanone

: 1263677-02-6
1-ethyl 3-methyl 4-hydroxy-2-[4-(trifluoromethyl)phenyl]cyclohepta-1,3-diene-1,3-dicarboxylate

Guidance literature:: 2-ethoxycarbonyl-1-cyclopentanone; With sodium hydride; In tetrahydrofuran; mineral oil; for 0.166667h; Inert atmosphere; Reflux;

methyl 3-[4-(trifluoromethyl)phenyl]prop-2-ynoate; In tetrahydrofuran; mineral oil; for 16h; Inert atmosphere; Reflux;
DOI:10.1021/ol102909t

Reference yield:

: 455-19-6
4-Trifluoromethylbenzaldehyde

: 1263677-02-6
1-ethyl 3-methyl 4-hydroxy-2-[4-(trifluoromethyl)phenyl]cyclohepta-1,3-diene-1,3-dicarboxylate

Guidance literature:: Multi-step reaction with 3 steps

1.1: triphenylphosphine / dichloromethane / 1 h / 0 °C / Inert atmosphere

1.2: 1 h / 0 °C / Inert atmosphere

2.1: n-butyllithium / tetrahydrofuran / 2 h / -78 - 20 °C / Inert atmosphere

2.2: 4 h / -78 - 20 °C / Inert atmosphere

3.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / Inert atmosphere; Reflux

3.2: 16 h / Inert atmosphere; Reflux

With n-butyllithium; sodium hydride; triphenylphosphine; In tetrahydrofuran; dichloromethane; mineral oil; 2.1: Corey-Fuchs reaction / 2.2: Corey-Fuchs reaction;
DOI:10.1021/ol102909t

Reference yield:

: 131356-53-1
1-(2,2-dibromovinyl)-4-(trifluoromethyl)benzeney

: 1263677-02-6
1-ethyl 3-methyl 4-hydroxy-2-[4-(trifluoromethyl)phenyl]cyclohepta-1,3-diene-1,3-dicarboxylate

Guidance literature:: Multi-step reaction with 2 steps

1.1: n-butyllithium / tetrahydrofuran / 2 h / -78 - 20 °C / Inert atmosphere

1.2: 4 h / -78 - 20 °C / Inert atmosphere

2.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / Inert atmosphere; Reflux

2.2: 16 h / Inert atmosphere; Reflux

With n-butyllithium; sodium hydride; In tetrahydrofuran; mineral oil; 1.1: Corey-Fuchs reaction / 1.2: Corey-Fuchs reaction;
DOI:10.1021/ol102909t