Nsc21187

Base Information

• Chemical Name: Nsc21187
• CAS No.: 87932-49-8
• Molecular Formula: C7H5ClO4
• Molecular Weight: 188.567
• Hs Code.: 2918290000
• Mol file: 87932-49-8.mol

Synonyms:5-chloro-3,4-dihydrocarbostyril;5-chloro-3,4-dihydroxybenzoic acid;2(1H)-Quinolinone,5-chloro-3,4-dihydro;5-chloro-3,4-dihydroquinolin-2(1H)-one;5-Chlor-3,4-dihydro-carbostyril;5-chloro-3,4-dihydro-2(1H)-quinolinone;

Chemical Property of Nsc21187

Chemical Property:

• Vapor Pressure: 7.75E-07mmHg at 25°C
• Boiling Point: 391.7°Cat760mmHg
• PKA: 4.08±0.10(Predicted)
• Flash Point: 190.7°C
• PSA: 77.76000
• Density: 1.702g/cm³
• LogP: 1.44940
• Storage Temp.: Sealed in dry,Room Temperature

Purity/Quality:

97% ^*data from raw suppliers

3-Chloro-4,5-dihydroxybenzoicacid 95+% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of Nsc21187

There total 1 articles about Nsc21187 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: 79.0%

3-chloro-4-hydroxy-5-methoxybenzoic acid (62936-23-6) → 3-chloro-4,5-dihydroxybenzoic acid (87932-49-8)

Guidance literature:

With boron tribromide; In dichloromethane; at 0 ℃; for 2h; Inert atmosphere;

Reference yield: 90.0%

tert-butyl ((2H-spiro[benzofuran-3,4'-piperidin]-5-yl)methyl)carbamate (1313498-37-1) + 3-chloro-4,5-dihydroxybenzoic acid (87932-49-8) → C25H29ClN2O6

Guidance literature:

With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; In dichloromethane; at 20 ℃; for 12h;

Reference yield: 82.0%

methanol (67-56-1) + 3-chloro-4,5-dihydroxybenzoic acid (87932-49-8) → methyl 3,4-dihydroxy-5-chlorobenzoate (132496-77-6)

Guidance literature:

With chloro-trimethyl-silane; In methanol; at 50 ℃; Inert atmosphere;

upstream raw materials:

3-chloro-4-hydroxy-5-methoxybenzoic acid

Downstream raw materials:

3,4-diacetoxy-5-chlorobenzoic acid

tert-butyl 2-(3-chloro-4,5-dihydroxybenzoyl)acetate

3-chloro-4,5-diacetoxybenzoyl chloride

7-amino-3-<3-(3-chloro-4,5-dihydroxyphenl)-3-oxopropyl>ceph-3-em-4-carboxylic acid

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