3-amino-4-(4-chlorophenylsulfonyl)-5-methyl-2-thiophenecarboxylic acid

Base Information

Chemical Name:3-amino-4-(4-chlorophenylsulfonyl)-5-methyl-2-thiophenecarboxylic acid
CAS No.:243984-75-0
Molecular Formula:C₁₂H₁₀ClNO₄S₂
Molecular Weight:331.801
Hs Code.:

Synonyms:3-amino-4-(4-chlorophenylsulfonyl)-5-methyl-2-thiophenecarboxylic acid

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Chemical Property of 3-amino-4-(4-chlorophenylsulfonyl)-5-methyl-2-thiophenecarboxylic acid

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Technology Process of 3-amino-4-(4-chlorophenylsulfonyl)-5-methyl-2-thiophenecarboxylic acid

There total 3 articles about 3-amino-4-(4-chlorophenylsulfonyl)-5-methyl-2-thiophenecarboxylic acid 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: 92.0%

: 243984-70-5
methyl 3-amino-4-(4-chlorophenylsulfonyl)-5-methyl-2-thiophenecarboxylate

: 243984-75-0
3-amino-4-(4-chlorophenylsulfonyl)-5-methyl-2-thiophenecarboxylic acid

Guidance literature:: With sodium hydroxide; In 1,4-dioxane; at 100 ℃;
DOI:10.1002/jhet.5570360314

Reference yield:

: 1851-09-8
2-(4-chlorobenzenesulfonyl)acetonitrile

: 243984-75-0
3-amino-4-(4-chlorophenylsulfonyl)-5-methyl-2-thiophenecarboxylic acid

Guidance literature:: Multi-step reaction with 3 steps

1: 68 percent / Ac₂O, ZnCl₂ / 125 - 130 °C

2: 38 percent / Et₃N / tetrahydrofuran / 4 h / 75 - 80 °C

3: 92 percent / 5N aq. NaOH / dioxane / 100 °C

With sodium hydroxide; acetic anhydride; triethylamine; zinc(II) chloride; In tetrahydrofuran; 1,4-dioxane;
DOI:10.1002/jhet.5570360314

Reference yield:

: 243984-82-9
2-(4-chlorophenylsulfonyl)-3-methoxy-3-methylacrylonitrile

: 243984-75-0
3-amino-4-(4-chlorophenylsulfonyl)-5-methyl-2-thiophenecarboxylic acid

Guidance literature:: Multi-step reaction with 2 steps

1: 38 percent / Et₃N / tetrahydrofuran / 4 h / 75 - 80 °C

2: 92 percent / 5N aq. NaOH / dioxane / 100 °C

With sodium hydroxide; triethylamine; In tetrahydrofuran; 1,4-dioxane;
DOI:10.1002/jhet.5570360314