5,5-bis(4-bromophenyl)-3-(4-methoxyphenyl)-2-methylpenta-3,4-dienoic acid ethyl ester

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Chemical Name:5,5-bis(4-bromophenyl)-3-(4-methoxyphenyl)-2-methylpenta-3,4-dienoic acid ethyl ester
CAS No.:1310712-10-7
Molecular Formula:C₂₇H₂₄Br₂O₃
Molecular Weight:556.294
Hs Code.:

Synonyms:5,5-bis(4-bromophenyl)-3-(4-methoxyphenyl)-2-methylpenta-3,4-dienoic acid ethyl ester

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Chemical Property of 5,5-bis(4-bromophenyl)-3-(4-methoxyphenyl)-2-methylpenta-3,4-dienoic acid ethyl ester

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Technology Process of 5,5-bis(4-bromophenyl)-3-(4-methoxyphenyl)-2-methylpenta-3,4-dienoic acid ethyl ester

There total 6 articles about 5,5-bis(4-bromophenyl)-3-(4-methoxyphenyl)-2-methylpenta-3,4-dienoic acid 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: 69.0%

: 1310711-84-2
5,5-bis(4-bromophenyl)-2-methylpenta-2,3,4-trienoic acid ethyl ester

: 5720-07-0
4-methoxyphenylboronic acid

: 1310712-10-7
5,5-bis(4-bromophenyl)-3-(4-methoxyphenyl)-2-methylpenta-3,4-dienoic acid ethyl ester

Guidance literature:: With [Pd((CN(C₁₀H₆)C₆H₄NCH₃)2)(H₂O)2]⁽²⁺⁾*2O₃SCF₃^(1-)=[Pd((CN(C₁₀H₆)C₆H₄NCH₃)2)(H₂O)2][O₃SCF₃]2; triethylamine; In 1,4-dioxane; at 80 ℃; for 12h; optical yield given as %ee; enantioselective reaction; Inert atmosphere;
DOI:10.1002/chem.201100703

Reference yield:

: 1310711-68-2
C₁₅H₁₄Br₂O

: 1310712-10-7
5,5-bis(4-bromophenyl)-3-(4-methoxyphenyl)-2-methylpenta-3,4-dienoic acid ethyl ester

Guidance literature:: Multi-step reaction with 5 steps

1: bromine; acetic acid / 0.08 h / 80 °C / Inert atmosphere

2: bromine / chloroform / 3 h / Irradiation; Inert atmosphere

3: toluene / 3 h / 80 °C / Inert atmosphere

4: triethylamine / acetonitrile / 0 °C / Inert atmosphere

5: [Pd((CN(C₁₀H₆)C₆H₄NCH₃)2)(H₂O)2]⁽²⁺⁾*2O₃SCF₃^(1-)=[Pd((CN(C₁₀H₆)C₆H₄NCH₃)2)(H₂O)2][O₃SCF₃]2; triethylamine / 1,4-dioxane / 12 h / 80 °C / Inert atmosphere

With [Pd((CN(C₁₀H₆)C₆H₄NCH₃)2)(H₂O)2]⁽²⁺⁾*2O₃SCF₃^(1-)=[Pd((CN(C₁₀H₆)C₆H₄NCH₃)2)(H₂O)2][O₃SCF₃]2; bromine; acetic acid; triethylamine; In 1,4-dioxane; chloroform; toluene; acetonitrile;
DOI:10.1002/chem.201100703

Reference yield:

: 1310711-71-7
C₁₅H₁₃Br₃O

: 1310712-10-7
5,5-bis(4-bromophenyl)-3-(4-methoxyphenyl)-2-methylpenta-3,4-dienoic acid ethyl ester

Guidance literature:: Multi-step reaction with 4 steps

1: bromine / chloroform / 3 h / Irradiation; Inert atmosphere

2: toluene / 3 h / 80 °C / Inert atmosphere

3: triethylamine / acetonitrile / 0 °C / Inert atmosphere

4: [Pd((CN(C₁₀H₆)C₆H₄NCH₃)2)(H₂O)2]⁽²⁺⁾*2O₃SCF₃^(1-)=[Pd((CN(C₁₀H₆)C₆H₄NCH₃)2)(H₂O)2][O₃SCF₃]2; triethylamine / 1,4-dioxane / 12 h / 80 °C / Inert atmosphere

With [Pd((CN(C₁₀H₆)C₆H₄NCH₃)2)(H₂O)2]⁽²⁺⁾*2O₃SCF₃^(1-)=[Pd((CN(C₁₀H₆)C₆H₄NCH₃)2)(H₂O)2][O₃SCF₃]2; bromine; triethylamine; In 1,4-dioxane; chloroform; toluene; acetonitrile;
DOI:10.1002/chem.201100703