(S,E)-4-(3-methoxy-2-((methylsulfonyl)oxy)phenyl)hept-5-enoic acid ethyl ester

Base Information

• Chemical Name: (S,E)-4-(3-methoxy-2-((methylsulfonyl)oxy)phenyl)hept-5-enoic acid ethyl ester
• CAS No.: 1603967-71-0
• Molecular Formula: C₁₇H₂₄O₆S
• Molecular Weight: 356.44
• Mol file: 1603967-71-0.mol

Synonyms:(S,E)-4-(3-methoxy-2-((methylsulfonyl)oxy)phenyl)hept-5-enoic acid ethyl ester

Chemical Property of (S,E)-4-(3-methoxy-2-((methylsulfonyl)oxy)phenyl)hept-5-enoic acid ethyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (S,E)-4-(3-methoxy-2-((methylsulfonyl)oxy)phenyl)hept-5-enoic acid ethyl ester

There total 3 articles about (S,E)-4-(3-methoxy-2-((methylsulfonyl)oxy)phenyl)hept-5-enoic 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: 85.5%

(S,E)-4-(2-hydroxy-3-methoxyphenyl)hept-5-enoic acid ethyl ester (1603967-26-5) + methanesulfonyl chloride (124-63-0) → (S,E)-4-(3-methoxy-2-((methylsulfonyl)oxy)phenyl)hept-5-enoic acid ethyl ester (1603967-71-0)

Guidance literature:

With triethylamine; In dichloromethane; at 0 ℃; for 0.166667h;

DOI:10.1021/ja503023h

Reference yield:

(R)-2-(2-methoxyphenoxy)propionic acid methyl ester (1603967-22-1) → (S,E)-4-(3-methoxy-2-((methylsulfonyl)oxy)phenyl)hept-5-enoic acid ethyl ester (1603967-71-0)

Guidance literature:

Multi-step reaction with 3 steps

1.1: diethylazodicarboxylate; diisobutylaluminium hydride / diethyl ether; hexane / 0.47 h / -78 - -40 °C

1.2: 0.45 h / -40 - 0 °C

2.1: 4-nitro-phenol / Reflux

3.1: triethylamine / dichloromethane / 0.17 h / 0 °C

With 4-nitro-phenol; diisobutylaluminium hydride; triethylamine; diethylazodicarboxylate; In diethyl ether; hexane; dichloromethane; 2.1: |Johnson-Claisen Rearrangement;

DOI:10.1021/ja503023h

Reference yield:

(4R)-4-(2-methoxyphenoxy)pent-1-en-3-ol → (S,E)-4-(3-methoxy-2-((methylsulfonyl)oxy)phenyl)hept-5-enoic acid ethyl ester (1603967-71-0)

Guidance literature:

Multi-step reaction with 2 steps

1: 4-nitro-phenol / Reflux

2: triethylamine / dichloromethane / 0.17 h / 0 °C

With 4-nitro-phenol; triethylamine; In dichloromethane; 1: |Johnson-Claisen Rearrangement;

DOI:10.1021/ja503023h

upstream raw materials:

(S,E)-4-(2-hydroxy-3-methoxyphenyl)hept-5-enoic acid ethyl ester

methanesulfonyl chloride

(R)-2-(2-methoxyphenoxy)propionic acid methyl ester

Downstream raw materials:

lepenine

(R)-5-hydroxy-4-(3-methoxy-2-((methylsulfonyl)oxy)phenyl)pentanoic acid ethyl ester

(R)-4-(3-methoxy-2-((methylsulfonyl)oxy)phenyl)-5-(pivaloyloxy)pentanoic acid ethyl ester

(R)-4-(3-methoxy-2-((methylsulfonyl)oxy)phenyl)-5-(pivaloyloxy)pentanoic acid