3-(2,5-dimethoxy-4-methyl-phenyl)-3,4-dimethyl-pent-4-enoic acid

Base Information

• Chemical Name: 3-(2,5-dimethoxy-4-methyl-phenyl)-3,4-dimethyl-pent-4-enoic acid
• CAS No.: 936734-70-2
• Molecular Formula: C₁₆H₂₂O₄
• Molecular Weight: 278.348
• Mol file: 936734-70-2.mol

Synonyms:3-(2,5-dimethoxy-4-methyl-phenyl)-3,4-dimethyl-pent-4-enoic acid

Chemical Property of 3-(2,5-dimethoxy-4-methyl-phenyl)-3,4-dimethyl-pent-4-enoic acid

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 3-(2,5-dimethoxy-4-methyl-phenyl)-3,4-dimethyl-pent-4-enoic acid

There total 4 articles about 3-(2,5-dimethoxy-4-methyl-phenyl)-3,4-dimethyl-pent-4-enoic acid 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: 92.0%

ethyl 3-(2,5-dimethoxy-4-methylphenyl)-3,4-dimethylpent-4-enoate (936734-68-8) → 3-(2,5-dimethoxy-4-methyl-phenyl)-3,4-dimethyl-pent-4-enoic acid (936734-70-2)

Guidance literature:

With sodium hydroxide; In methanol; for 4h; Heating;

DOI:10.1055/s-2007-967971

Reference yield:

3-(2,5-dimethoxy-4-methyl-phenyl)-2-methyl-but-2-en-1-ol (936734-67-7) → 3-(2,5-dimethoxy-4-methyl-phenyl)-3,4-dimethyl-pent-4-enoic acid (936734-70-2)

Guidance literature:

Multi-step reaction with 2 steps

1: 90 percent / propionic acid / 48 h / 180 °C

2: 92 percent / sodium hydroxide / aq. methanol / 4 h / Heating

With sodium hydroxide; propionic acid; In methanol; 1: Claisen rearrangement;

DOI:10.1055/s-2007-967971

Reference yield:

3-(2,5-dimethoxy-4-methyl-phenyl)-2-methyl-but-2-enoic acid ethyl ester (936734-66-6) → 3-(2,5-dimethoxy-4-methyl-phenyl)-3,4-dimethyl-pent-4-enoic acid (936734-70-2)

Guidance literature:

Multi-step reaction with 3 steps

1: 93 percent / lithium aluminum hydride / diethyl ether / 2 h / -50 °C

2: 90 percent / propionic acid / 48 h / 180 °C

3: 92 percent / sodium hydroxide / aq. methanol / 4 h / Heating

With sodium hydroxide; lithium aluminium tetrahydride; propionic acid; In methanol; diethyl ether; 2: Claisen rearrangement;

DOI:10.1055/s-2007-967971

upstream raw materials:

ethyl 3-(2,5-dimethoxy-4-methylphenyl)-3,4-dimethylpent-4-enoate

3-(2,5-dimethoxy-4-methyl-phenyl)-2-methyl-but-2-en-1-ol

3-(2,5-dimethoxy-4-methyl-phenyl)-2-methyl-but-2-enoic acid ethyl ester

1-(2,5-Dimethoxy-4-methyl-phenyl)-ethanone

Downstream raw materials:

4-(2,5-dimethoxy-4-methylphenyl)-4,5-dimethylbicyclo[3.1.0]hexan-2-one

1-diazo-4-(2,5-dimethoxy-4-methyl-phenyl)-4,5-dimethyl-hex-5-en-2-one