[(2R,4R)-2-(3,4-Dichloro-benzyl)-6-fluoro-4-hydroxy-chroman-4-yl]-acetic acid

Base Information

• Chemical Name: [(2R,4R)-2-(3,4-Dichloro-benzyl)-6-fluoro-4-hydroxy-chroman-4-yl]-acetic acid
• CAS No.: 111502-94-4
• Molecular Formula: C₁₈H₁₅Cl₂FO₄
• Molecular Weight: 385.219
• Mol file: 111502-94-4.mol

Synonyms:[(2R,4R)-2-(3,4-Dichloro-benzyl)-6-fluoro-4-hydroxy-chroman-4-yl]-acetic acid

Chemical Property of [(2R,4R)-2-(3,4-Dichloro-benzyl)-6-fluoro-4-hydroxy-chroman-4-yl]-acetic acid

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of [(2R,4R)-2-(3,4-Dichloro-benzyl)-6-fluoro-4-hydroxy-chroman-4-yl]-acetic acid

There total 4 articles about [(2R,4R)-2-(3,4-Dichloro-benzyl)-6-fluoro-4-hydroxy-chroman-4-yl]-acetic 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:

[(2R,4R)-2-(3,4-Dichloro-benzyl)-6-fluoro-4-hydroxy-chroman-4-yl]-acetic acid ethyl ester (111477-65-7) → [(2R,4R)-2-(3,4-Dichloro-benzyl)-6-fluoro-4-hydroxy-chroman-4-yl]-acetic acid (111502-94-4)

Guidance literature:

With potassium hydroxide; In ethanol; at 23 ℃; for 4h;

DOI:10.1021/jm00090a004

Reference yield:

6-fluoro-4H-chromen-4-one (105300-38-7) → [(2R,4R)-2-(3,4-Dichloro-benzyl)-6-fluoro-4-hydroxy-chroman-4-yl]-acetic acid (111502-94-4)

Guidance literature:

Multi-step reaction with 3 steps

1: 1.) CuI / 1.) Et₂O, -20 deg C, 15 min, 2.) Et₂O, -20 deg C to RT, 20 h

2: 1.) LDA / 1.) THF, hexane, -78 deg C, 1.5 h, 2.) THF, hexane, -78 deg C, 1.5 h

3: KOH / ethanol / 4 h / 23 °C

With potassium hydroxide; copper(l) iodide; lithium diisopropyl amide; In ethanol;

DOI:10.1021/jm00090a004

Reference yield:

3,4-dichlorobenzylmagnesium chloride (61259-69-6) → [(2R,4R)-2-(3,4-Dichloro-benzyl)-6-fluoro-4-hydroxy-chroman-4-yl]-acetic acid (111502-94-4)

Guidance literature:

Multi-step reaction with 3 steps

1: 1.) CuI / 1.) Et₂O, -20 deg C, 15 min, 2.) Et₂O, -20 deg C to RT, 20 h

2: 1.) LDA / 1.) THF, hexane, -78 deg C, 1.5 h, 2.) THF, hexane, -78 deg C, 1.5 h

3: KOH / ethanol / 4 h / 23 °C

With potassium hydroxide; copper(l) iodide; lithium diisopropyl amide; In ethanol;

DOI:10.1021/jm00090a004

upstream raw materials:

[(2R,4R)-2-(3,4-Dichloro-benzyl)-6-fluoro-4-hydroxy-chroman-4-yl]-acetic acid ethyl ester

6-fluoro-4H-chromen-4-one

3,4-dichlorobenzylmagnesium chloride

6-fluoro-2-(3,4-dichlorobenzyl)chroman-4-one