ETHYL-4-BROMO-3-METHYLBUT-2-ENOATE

Base Information

• Chemical Name: ETHYL-4-BROMO-3-METHYLBUT-2-ENOATE
• CAS No.: 26918-14-9
• Molecular Formula: C₇H₁₁BrO₂
• Molecular Weight: 207.067
• Hs Code.: 2916199590
• Mol file: 26918-14-9.mol

Synonyms:Crotonicacid, 4-bromo-3-methyl-, ethyl ester (6CI,7CI); Ethyl4-bromo-3-methyl-2-butenoate; Ethyl 4-bromosenecioate; Ethyl g-bromo-b,b-dimethylacrylate

Chemical Property of ETHYL-4-BROMO-3-METHYLBUT-2-ENOATE

Chemical Property:

• Boiling Point: 108 °C(Press: 14 Torr)
• PSA: 26.30000
• Density: 1.3683 g/cm3(Temp: 20.3 °C)
• LogP: 1.89070

Purity/Quality:

97% ^*data from raw suppliers

Ethyl-4-bromo-3-methylbut-2-enoate ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of ETHYL-4-BROMO-3-METHYLBUT-2-ENOATE

There total 8 articles about ETHYL-4-BROMO-3-METHYLBUT-2-ENOATE 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: 95.0%

ethyl 2-bromo-3-methyl-3-butenoate → ethyl 4-bromo-3-methylcrotonate (51318-62-8,51371-55-2,26918-14-9)

Guidance literature:

With tetrabutylammomium bromide; In N,N-dimethyl-formamide; at 20 ℃; for 24h; Reagent/catalyst;

Reference yield: 67.0%

(E)-Ethyl-4-hydroxy-3-methylbut-2-enoate (70423-43-7) → ethyl 4-bromo-3-methylcrotonate (51318-62-8,51371-55-2,26918-14-9)

Guidance literature:

With 1H-imidazole; carbon tetrabromide; triphenylphosphine; In dichloromethane; at 0 ℃; for 1h; Inert atmosphere;

Reference yield: 67.0%

ethyl 3-methylbut-2-enoate (638-10-8) → ethyl 4-bromo-3-methylcrotonate (51318-62-8,51371-55-2,26918-14-9)

Guidance literature:

With N-Bromosuccinimide; In tetrachloromethane; for 2h; Heating;

DOI:10.1016/S0040-4039(00)89300-4

upstream raw materials:

ethyl 3-methylbut-2-enoate

ethyl (E)-4-hydroxy-3-methyl-2-butenoate

ethyl (E)-3-formyl-2-butenoate

3-Methylbutenoic acid

Downstream raw materials:

(+/-)-6-chloromethyl-4-methyl-5,6-dihydro-pyran-2-one

ethyl 3-methyl-4-phenoxybut-2-enoate

3-methyl-4-phthalimido-crotonic acid ethyl ester

3-methyl-hex-2-enedioic acid diethyl ester

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