2-amino-5-<<(phenoxycarbonyl)amino>methyl>-4-methylthiophene-3-carboxylic acid

Base Information

Chemical Name:2-amino-5-<<(phenoxycarbonyl)amino>methyl>-4-methylthiophene-3-carboxylic acid
CAS No.:136667-88-4
Molecular Formula:C₁₄H₁₄N₂O₄S
Molecular Weight:306.342
Hs Code.:

Synonyms:2-amino-5-<<(phenoxycarbonyl)amino>methyl>-4-methylthiophene-3-carboxylic acid

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Chemical Property of 2-amino-5-<<(phenoxycarbonyl)amino>methyl>-4-methylthiophene-3-carboxylic acid

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Technology Process of 2-amino-5-<<(phenoxycarbonyl)amino>methyl>-4-methylthiophene-3-carboxylic acid

There total 8 articles about 2-amino-5-<<(phenoxycarbonyl)amino>methyl>-4-methylthiophene-3-carboxylic 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: 62.0%

: 136667-91-9
benzyl 2-<<(phenylmethoxy)carbonyl>amino>-5-<<(phenoxycarbonyl)amino>methyl>-4-methylthiophene-3-carboxylate

: 136667-88-4
2-amino-5-<<(phenoxycarbonyl)amino>methyl>-4-methylthiophene-3-carboxylic acid

Guidance literature:: With triethylsilane; palladium diacetate; In dichloromethane; for 1.5h;
DOI:10.1021/jo00025a044

Reference yield:

: 136667-89-5
3-benzyl 5-<2-(trimethylsilyl)ethyl> 2-amino-4-methylthiophene-3,5-dicarboxylate

: 136667-88-4
2-amino-5-<<(phenoxycarbonyl)amino>methyl>-4-methylthiophene-3-carboxylic acid

Guidance literature:: Multi-step reaction with 8 steps

1: 48 percent / 4-(dimethylamino)pyridine, Et₃N / CH₂Cl₂ / 12 h

2: 98 percent / 1.0 M tetrabutylammonium fluoride (TBAF) / tetrahydrofuran / 1) 12 h, 2) 7 h

3: SOCl₂ / CH₂Cl₂; dimethylformamide / 0.5 h

4: NaBH₄ / dioxane / 1) 0 deg C to RT, 15 min., 2) 10 deg C

5: NaN₃, Ph₃P, CCl₄ / dimethylformamide / 13 h / Ambient temperature

6: Ph₃P, pyridine / 19 h

7: Et₃N / CH₂Cl₂ / 16 h

8: 62 percent / Pd(II)-acetate, triethylsilane / CH₂Cl₂ / 1.5 h

With pyridine; triethylsilane; tetrachloromethane; dmap; palladium diacetate; sodium tetrahydroborate; thionyl chloride; sodium azide; tetrabutyl ammonium fluoride; triethylamine; triphenylphosphine; In tetrahydrofuran; 1,4-dioxane; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/jo00025a044

Reference yield:

: 136667-90-8
benzyl 2-<<(phenylmethoxy)carbonyl>amino>-5-(hydroxymethyl)-4-methylthiophene-3-carboxylate

: 136667-88-4
2-amino-5-<<(phenoxycarbonyl)amino>methyl>-4-methylthiophene-3-carboxylic acid

Guidance literature:: Multi-step reaction with 4 steps

1: NaN₃, Ph₃P, CCl₄ / dimethylformamide / 13 h / Ambient temperature

2: Ph₃P, pyridine / 19 h

3: Et₃N / CH₂Cl₂ / 16 h

4: 62 percent / Pd(II)-acetate, triethylsilane / CH₂Cl₂ / 1.5 h

With pyridine; triethylsilane; tetrachloromethane; palladium diacetate; sodium azide; triethylamine; triphenylphosphine; In dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/jo00025a044