2-(Ethoxyoxalyl-methyl-amino)-4,5,6,7-tetrahydro-benzo[b]thiophene-3-carboxylic acid benzyl ester

Base Information

Chemical Name:2-(Ethoxyoxalyl-methyl-amino)-4,5,6,7-tetrahydro-benzo[b]thiophene-3-carboxylic acid benzyl ester
CAS No.:188411-49-6
Molecular Formula:C₂₁H₂₃NO₅S
Molecular Weight:401.483
Hs Code.:

Synonyms:2-(Ethoxyoxalyl-methyl-amino)-4,5,6,7-tetrahydro-benzo[b]thiophene-3-carboxylic acid benzyl ester

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Chemical Property of 2-(Ethoxyoxalyl-methyl-amino)-4,5,6,7-tetrahydro-benzo[b]thiophene-3-carboxylic acid benzyl ester

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Technology Process of 2-(Ethoxyoxalyl-methyl-amino)-4,5,6,7-tetrahydro-benzo[b]thiophene-3-carboxylic acid benzyl ester

There total 4 articles about 2-(Ethoxyoxalyl-methyl-amino)-4,5,6,7-tetrahydro-benzo[b]thiophene-3-carboxylic acid benzyl 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: 94.0%

: 188411-48-5
2-(Ethoxyoxalyl-amino)-4,5,6,7-tetrahydro-benzo[b]thiophene-3-carboxylic acid benzyl ester

: 74-88-4
methyl iodide

: 188411-49-6
2-(Ethoxyoxalyl-methyl-amino)-4,5,6,7-tetrahydro-benzo[b]thiophene-3-carboxylic acid benzyl ester

Guidance literature:: With potassium carbonate; In N,N-dimethyl-formamide; at 80 ℃; for 20h;
DOI:10.1080/00397919708006049

Reference yield:

: 4506-71-2
ethyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate

: 188411-49-6
2-(Ethoxyoxalyl-methyl-amino)-4,5,6,7-tetrahydro-benzo[b]thiophene-3-carboxylic acid benzyl ester

Guidance literature:: Multi-step reaction with 4 steps

1: 78 percent / aq. NaOH / methanol / Heating

2: 76 percent / K₂CO₃ / dimethylformamide / 20 h / Ambient temperature

3: 100 percent / Et₃N / CH₂Cl₂ / 0 deg C, 0.5 h; room temperature, 20 h

4: 94 percent / K₂CO₃ / dimethylformamide / 20 h / 80 °C

With sodium hydroxide; potassium carbonate; triethylamine; In methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1080/00397919708006049

Reference yield:

: 188411-47-4
benzyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate

: 188411-49-6
2-(Ethoxyoxalyl-methyl-amino)-4,5,6,7-tetrahydro-benzo[b]thiophene-3-carboxylic acid benzyl ester

Guidance literature:: Multi-step reaction with 2 steps

1: 100 percent / Et₃N / CH₂Cl₂ / 0 deg C, 0.5 h; room temperature, 20 h

2: 94 percent / K₂CO₃ / dimethylformamide / 20 h / 80 °C

With potassium carbonate; triethylamine; In dichloromethane; N,N-dimethyl-formamide;
DOI:10.1080/00397919708006049