6,7-dimethoxy-1-oxo-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester

Base Information

• Chemical Name: 6,7-dimethoxy-1-oxo-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester
• CAS No.: 243637-11-8
• Molecular Formula: C₁₆H₂₁NO₅
• Molecular Weight: 307.346

Synonyms:6,7-dimethoxy-1-oxo-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester

Chemical Property of 6,7-dimethoxy-1-oxo-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester

Chemical Property:

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Technology Process of 6,7-dimethoxy-1-oxo-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester

There total 2 articles about 6,7-dimethoxy-1-oxo-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl 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: 86.0%

6,7-dimethoxy-3,4-dihydro-2H-isoquinolin-1-one (493-49-2) + di-tert-butyl dicarbonate (24424-99-5) → 6,7-dimethoxy-1-oxo-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester (243637-11-8)

Guidance literature:

With sodium hydride; In tetrahydrofuran; at 18 - 22 ℃; for 4h;

DOI:10.1021/ol035746r

Reference yield: 50.0%

6,7-dimethoxy-3,4-dihydro-1H-isoquinoline-1,2-dicarboxylic acid 2-tert-butyl ester 1-ethyl ester → 6,7-dimethoxy-3,4-dihydro-2H-isoquinolin-1-one (493-49-2) + 6,7-dimethoxy-1-oxo-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester (243637-11-8) + 2-(2-((tert-butoxycarbonyl)amino)ethyl)-4,5-dimethoxybenzoic acid

Guidance literature:

With sodium hydride; In N,N-dimethyl-formamide; at 20 ℃;

DOI:10.1016/S0040-4039(01)00482-8

Reference yield: 95.0%

6,7-dimethoxy-1-oxo-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester (243637-11-8) → 6,7-dimethoxy-3,4-dihydro-2H-isoquinolin-1-one (493-49-2)

Guidance literature:

With trifluoroacetic acid; In dichloromethane; at 20 ℃; for 1h;

DOI:10.1039/c9gc02870f

upstream raw materials:

6,7-dimethoxy-3,4-dihydro-2H-isoquinolin-1-one

di-tert-butyl dicarbonate

Downstream raw materials:

[2-(2-acetyl-4,5-dimethoxy-phenyl)-ethyl]-carbamic acid tert-butyl ester

t-butyl-2-(4,5-dimethoxy-2-pent-4-enoylphenyl)-ethylcarbamate

t-butyl-2-(4,5-dimethoxy-2-hex-5-oxoylphenyl)-ethylcarbamate

t-butyl-2-[4,5-dimethoxy-2-(4-oxobutanoyl)phenyl]-ethylcarbamate

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