2-((E)-3-Bromo-but-1-enyl)-1,3-dimethyl-4-oxo-cyclohex-2-enecarboxylic acid ethyl ester

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Chemical Name:2-((E)-3-Bromo-but-1-enyl)-1,3-dimethyl-4-oxo-cyclohex-2-enecarboxylic acid ethyl ester
CAS No.:76681-56-6
Molecular Formula:C₁₅H₂₁BrO₃
Molecular Weight:329.234
Hs Code.:

Synonyms:2-((E)-3-Bromo-but-1-enyl)-1,3-dimethyl-4-oxo-cyclohex-2-enecarboxylic acid ethyl ester

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Chemical Property of 2-((E)-3-Bromo-but-1-enyl)-1,3-dimethyl-4-oxo-cyclohex-2-enecarboxylic acid ethyl ester

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Technology Process of 2-((E)-3-Bromo-but-1-enyl)-1,3-dimethyl-4-oxo-cyclohex-2-enecarboxylic acid ethyl ester

There total 4 articles about 2-((E)-3-Bromo-but-1-enyl)-1,3-dimethyl-4-oxo-cyclohex-2-enecarboxylic 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: 83.0%

: 76681-54-4
2-hydroxy-4-(2,6-dimethyl-6-ethoxycarbonyl-3-oxo-1-cyclohexenyl)-3-butene

: 76681-56-6
2-((E)-3-Bromo-but-1-enyl)-1,3-dimethyl-4-oxo-cyclohex-2-enecarboxylic acid ethyl ester

Guidance literature:: With phosphorus tribromide; In pyridine; dichloromethane; N,N-dimethyl-formamide; 1) -20 deg C, 40 min. 2) -5 deg C, 1.5 h;

Reference yield:

: 58105-12-7
2,4-dimethyl-3-diethoxymethyl-4-ethoxycarbonyl-2-cyclohexenone

: 76681-56-6
2-((E)-3-Bromo-but-1-enyl)-1,3-dimethyl-4-oxo-cyclohex-2-enecarboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 4 steps

1: 80 percent / acetic acid, water / ethanol / 12 h / Ambient temperature

2: 99 percent / benzene / 6 h / 90 °C / sealed tube

3: 66 percent / NaBH₄ / ethanol / 0.05 h / 0 - 5 °C

4: 83 percent / PBr₃ / CH₂Cl₂; dimethylformamide; pyridine / 1) -20 deg C, 40 min. 2) -5 deg C, 1.5 h

With sodium tetrahydroborate; water; phosphorus tribromide; acetic acid; In pyridine; ethanol; dichloromethane; N,N-dimethyl-formamide; benzene;

Reference yield:

: 67192-50-1
2-oxo-4-(2,6-dimethyl-6-ethoxycarbonyl-3-oxo-1-cyclohexenyl)-3-butene

: 76681-56-6
2-((E)-3-Bromo-but-1-enyl)-1,3-dimethyl-4-oxo-cyclohex-2-enecarboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 2 steps

1: 66 percent / NaBH₄ / ethanol / 0.05 h / 0 - 5 °C

2: 83 percent / PBr₃ / CH₂Cl₂; dimethylformamide; pyridine / 1) -20 deg C, 40 min. 2) -5 deg C, 1.5 h

With sodium tetrahydroborate; phosphorus tribromide; In pyridine; ethanol; dichloromethane; N,N-dimethyl-formamide;