1-(3-bromopropyl)-2-methyl-4-oxocyclohexa-2,5-dienecarboxylic acid tert-butyl ester

Base Information

• Chemical Name: 1-(3-bromopropyl)-2-methyl-4-oxocyclohexa-2,5-dienecarboxylic acid tert-butyl ester
• CAS No.: 945546-59-8
• Molecular Formula: C₁₅H₂₁BrO₃
• Molecular Weight: 329.234
• Mol file: 945546-59-8.mol

Synonyms:1-(3-bromopropyl)-2-methyl-4-oxocyclohexa-2,5-dienecarboxylic acid tert-butyl ester

Chemical Property of 1-(3-bromopropyl)-2-methyl-4-oxocyclohexa-2,5-dienecarboxylic acid tert-butyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 1-(3-bromopropyl)-2-methyl-4-oxocyclohexa-2,5-dienecarboxylic acid tert-butyl ester

There total 2 articles about 1-(3-bromopropyl)-2-methyl-4-oxocyclohexa-2,5-dienecarboxylic acid tert-butyl 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: 70.0%

1-(3-bromopropyl)-2-methylcyclohexa-2,5-dienecarboxylic acid tert-butyl ester (945546-57-6) → 1-(3-bromopropyl)-2-methyl-4-oxocyclohexa-2,5-dienecarboxylic acid tert-butyl ester (945546-59-8)

Guidance literature:

With chromium(VI) oxide; acetic anhydride; acetic acid; In benzene; at 7 ℃; for 1h;

DOI:10.1021/ol070849l

Reference yield:

tert-butyl 2-methylbenzoate (16537-18-1) → 1-(3-bromopropyl)-2-methyl-4-oxocyclohexa-2,5-dienecarboxylic acid tert-butyl ester (945546-59-8)

Guidance literature:

Multi-step reaction with 2 steps

1.1: liquid NH₃; Li; Na / tetrahydrofuran; 2-methyl-propan-2-ol / -78 °C

1.2: 80 percent / tetrahydrofuran; 2-methyl-propan-2-ol / 1 h / -78 °C

2.1: 70 percent / CrO₃; Ac₂O; AcOH / benzene / 1 h / 7 °C

With chromium(VI) oxide; ammonia; sodium; acetic anhydride; lithium; acetic acid; In tetrahydrofuran; tert-butyl alcohol; benzene; 1.1: Birch reduction;

DOI:10.1021/ol070849l

Reference yield: 75.0%

1-(3-bromopropyl)-2-methyl-4-oxocyclohexa-2,5-dienecarboxylic acid tert-butyl ester (945546-59-8) → 1-(3-iodopropyl)-2-methyl-4-oxocyclohexa-2,5-dienecarboxylic acid tert-butyl ester (945546-61-2)

Guidance literature:

With sodium iodide; In acetone; for 17h; Heating;

DOI:10.1021/ol070849l

upstream raw materials:

1-(3-bromopropyl)-2-methylcyclohexa-2,5-dienecarboxylic acid tert-butyl ester

tert-butyl 2-methylbenzoate

Downstream raw materials:

1-(3-iodopropyl)-2-methyl-4-oxocyclohexa-2,5-dienecarboxylic acid tert-butyl ester

tert-butyl 4-[(4-bromophenyl)ethynyl]-1-(3-bromopropyl)-4-hydroxy-2-methylcyclohexa-2,5-dienecarboxylate

tert-butyl 1-(3-bromopropyl)-4-hydroxy-2-methyl-4-(phenylethynyl)cyclohexa-2,5-dienecarboxylate