(S)-2-tert-Butoxycarbonylamino-5-(4-chloro-phenyl)-5-oxo-pentanoic acid ethyl ester

Base Information

• Chemical Name: (S)-2-tert-Butoxycarbonylamino-5-(4-chloro-phenyl)-5-oxo-pentanoic acid ethyl ester
• CAS No.: 153783-19-8
• Molecular Formula: C₁₈H₂₄ClNO₅
• Molecular Weight: 369.845
• Mol file: 153783-19-8.mol

Synonyms:(S)-2-tert-Butoxycarbonylamino-5-(4-chloro-phenyl)-5-oxo-pentanoic acid ethyl ester

Chemical Property of (S)-2-tert-Butoxycarbonylamino-5-(4-chloro-phenyl)-5-oxo-pentanoic acid ethyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (S)-2-tert-Butoxycarbonylamino-5-(4-chloro-phenyl)-5-oxo-pentanoic acid ethyl ester

There total 1 articles about (S)-2-tert-Butoxycarbonylamino-5-(4-chloro-phenyl)-5-oxo-pentanoic 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: 97.0%

(4-chlorphenyl)magnesium bromide (873-77-8) + (S)-ethyl N-tert-butoxycarbonylpyroglutamate (144978-35-8,144978-12-1,251924-83-1) → (S)-2-tert-Butoxycarbonylamino-5-(4-chloro-phenyl)-5-oxo-pentanoic acid ethyl ester (153783-19-8)

Guidance literature:

In tetrahydrofuran; at -40 ℃;

DOI:10.1016/S0040-4039(00)73741-5

Reference yield: 90.0%

(S)-2-tert-Butoxycarbonylamino-5-(4-chloro-phenyl)-5-oxo-pentanoic acid ethyl ester (153783-19-8) → (S)-5-(4-Chloro-phenyl)-3,4-dihydro-2H-pyrrole-2-carboxylic acid ethyl ester (153783-24-5)

Guidance literature:

With trifluoroacetic acid; In dichloromethane;

DOI:10.1016/S0040-4039(00)73741-5

Reference yield:

(S)-2-tert-Butoxycarbonylamino-5-(4-chloro-phenyl)-5-oxo-pentanoic acid ethyl ester (153783-19-8) → 2-carbethoxy-5-(4-chlorophenyl)pyrrole (65117-64-8)

Guidance literature:

Multi-step reaction with 2 steps

1: 90 percent / TFA / CH₂Cl₂

2: NBS, AIBN / CCl₄

With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile); trifluoroacetic acid; In tetrachloromethane; dichloromethane;

DOI:10.1016/S0040-4039(00)73741-5

upstream raw materials:

(4-chlorphenyl)magnesium bromide

(S)-ethyl N-tert-butoxycarbonylpyroglutamate

Downstream raw materials:

(S)-5-(4-Chloro-phenyl)-3,4-dihydro-2H-pyrrole-2-carboxylic acid ethyl ester

2-carbethoxy-5-(4-chlorophenyl)pyrrole

5-(4-chlorophenyl)-1H-pyrrole-2-carboxylic acid