5-[3,4-Dimethyl-5-thioxo-1,5-dihydro-pyrrol-(2Z)-ylidenemethyl]-3,4-dimethyl-1H-pyrrole-2-carboxylic acid benzyl ester

Base Information

• Chemical Name: 5-[3,4-Dimethyl-5-thioxo-1,5-dihydro-pyrrol-(2Z)-ylidenemethyl]-3,4-dimethyl-1H-pyrrole-2-carboxylic acid benzyl ester
• CAS No.: 959087-33-3
• Molecular Formula: C₂₁H₂₂N₂O₂S
• Molecular Weight: 366.484

Synonyms:5-[3,4-Dimethyl-5-thioxo-1,5-dihydro-pyrrol-(2Z)-ylidenemethyl]-3,4-dimethyl-1H-pyrrole-2-carboxylic acid benzyl ester

Chemical Property of 5-[3,4-Dimethyl-5-thioxo-1,5-dihydro-pyrrol-(2Z)-ylidenemethyl]-3,4-dimethyl-1H-pyrrole-2-carboxylic acid benzyl ester

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Technology Process of 5-[3,4-Dimethyl-5-thioxo-1,5-dihydro-pyrrol-(2Z)-ylidenemethyl]-3,4-dimethyl-1H-pyrrole-2-carboxylic acid benzyl ester

There total 3 articles about 5-[3,4-Dimethyl-5-thioxo-1,5-dihydro-pyrrol-(2Z)-ylidenemethyl]-3,4-dimethyl-1H-pyrrole-2-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: 95.0%

5-[5-Bromo-3,4-dimethyl-pyrrol-(2Z)-ylidenemethyl]-3,4-dimethyl-1H-pyrrole-2-carboxylic acid benzyl ester → 5-[3,4-Dimethyl-5-thioxo-1,5-dihydro-pyrrol-(2Z)-ylidenemethyl]-3,4-dimethyl-1H-pyrrole-2-carboxylic acid benzyl ester (959087-33-3)

Guidance literature:

With sodium hydrogensulfide; trifluoroacetic acid; In methanol; Ambient temperature;

DOI:10.1002/hlca.19810640520

Reference yield:

5-bromo-3,4-dimethyl-pyrrole-2-carboxaldehyde (19711-75-2) → 5-[3,4-Dimethyl-5-thioxo-1,5-dihydro-pyrrol-(2Z)-ylidenemethyl]-3,4-dimethyl-1H-pyrrole-2-carboxylic acid benzyl ester (959087-33-3)

Guidance literature:

Multi-step reaction with 2 steps

1: 83 percent / P₂O₃, H₂SO₄ / acetic acid / 40 °C

2: 95 percent / NaHS, CF₃COOH / methanol / Ambient temperature

With sodium hydrogensulfide; diphosphorus trioxide; sulfuric acid; trifluoroacetic acid; In methanol; acetic acid;

DOI:10.1002/hlca.19810640520

Reference yield:

3,4-dimethyl-pyrrole-2-carboxylic acid benzyl ester (954-92-7) → 5-[3,4-Dimethyl-5-thioxo-1,5-dihydro-pyrrol-(2Z)-ylidenemethyl]-3,4-dimethyl-1H-pyrrole-2-carboxylic acid benzyl ester (959087-33-3)

Guidance literature:

Multi-step reaction with 2 steps

1: 83 percent / P₂O₃, H₂SO₄ / acetic acid / 40 °C

2: 95 percent / NaHS, CF₃COOH / methanol / Ambient temperature

With sodium hydrogensulfide; diphosphorus trioxide; sulfuric acid; trifluoroacetic acid; In methanol; acetic acid;

DOI:10.1002/hlca.19810640520

upstream raw materials:

5-bromo-3,4-dimethyl-pyrrole-2-carboxaldehyde

3,4-dimethyl-pyrrole-2-carboxylic acid benzyl ester

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