(S)-(+)-methyl 2-(chloroformyl)-2-(4-methylphenyl)propionate

Base Information

• Chemical Name: (S)-(+)-methyl 2-(chloroformyl)-2-(4-methylphenyl)propionate
• CAS No.: 141045-62-7
• Molecular Formula: C₁₂H₁₃ClO₃
• Molecular Weight: 240.686
• Mol file: 141045-62-7.mol

Synonyms:(S)-(+)-methyl 2-(chloroformyl)-2-(4-methylphenyl)propionate

Chemical Property of (S)-(+)-methyl 2-(chloroformyl)-2-(4-methylphenyl)propionate

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (S)-(+)-methyl 2-(chloroformyl)-2-(4-methylphenyl)propionate

There total 3 articles about (S)-(+)-methyl 2-(chloroformyl)-2-(4-methylphenyl)propionate 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%

(R)-(+)-2-(methoxycarbonyl)-2-(4-methylphenyl)propionic acid (877077-49-1) → (S)-(+)-methyl 2-(chloroformyl)-2-(4-methylphenyl)propionate (141045-62-7)

Guidance literature:

With oxalyl dichloride; In benzene; at 45 ℃; for 12h;

DOI:10.1021/jo00038a041

Reference yield:

methyl 2-(4-methylphenyl)propanoate (79443-97-3) → (S)-(+)-methyl 2-(chloroformyl)-2-(4-methylphenyl)propionate (141045-62-7)

Guidance literature:

Multi-step reaction with 3 steps

1: 1) i-Pr₂NH, n-BuLi / 1) THF, -78 deg C, 1 h, 2) 0 deg C, 30 min

2: 95 percent / 2N NaOH / H₂O / 1 h / 25 °C / pig liver esterase, pH 7.2

3: 95 percent / oxalyl chloride / benzene / 12 h / 45 °C

With sodium hydroxide; n-butyllithium; oxalyl dichloride; diisopropylamine; In water; benzene;

DOI:10.1021/jo00038a041

Reference yield:

dimethyl 2-methyl-2-(4-methylphenyl)malonate (127047-04-5) → (S)-(+)-methyl 2-(chloroformyl)-2-(4-methylphenyl)propionate (141045-62-7)

Guidance literature:

Multi-step reaction with 2 steps

1: 95 percent / 2N NaOH / H₂O / 1 h / 25 °C / pig liver esterase, pH 7.2

2: 95 percent / oxalyl chloride / benzene / 12 h / 45 °C

With sodium hydroxide; oxalyl dichloride; In water; benzene;

DOI:10.1021/jo00038a041

upstream raw materials:

(R)-(+)-2-(methoxycarbonyl)-2-(4-methylphenyl)propionic acid

methyl 2-(4-methylphenyl)propanoate

dimethyl 2-methyl-2-(4-methylphenyl)malonate

Downstream raw materials:

(2R,3R)-3-hydroxy-2-methyl-2-(4-methylphenyl)-4-butanolide

(2R,3S)-3-hydroxy-2-methyl-2-(4-methylphenyl)-4-butanolide

(2R,3R/S)-3-hydroxy-2-methyl-2-(4-methylphenyl)-4-butanolide

(3S)-(-)-3-methyl-3-(4-methylphenyl)pentane-1,4-diol