5-amino-7-ethyl-3-(4-nitrophenyl)-4-oxo-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylic acid ethyl ester

Base Information

Chemical Name:5-amino-7-ethyl-3-(4-nitrophenyl)-4-oxo-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylic acid ethyl ester
CAS No.:1234571-25-5
Molecular Formula:C₁₇H₁₆N₄O₅S
Molecular Weight:388.404
Hs Code.:

Synonyms:5-amino-7-ethyl-3-(4-nitrophenyl)-4-oxo-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylic acid ethyl ester

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Chemical Property of 5-amino-7-ethyl-3-(4-nitrophenyl)-4-oxo-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylic acid ethyl ester

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Technology Process of 5-amino-7-ethyl-3-(4-nitrophenyl)-4-oxo-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylic acid ethyl ester

There total 3 articles about 5-amino-7-ethyl-3-(4-nitrophenyl)-4-oxo-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylic acid ethyl 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: 98.0%

: 1234571-15-3
5-cyano-1-(4-nitrophenyl)-6-oxo-4-propyl-1,6-dihydropyridazine-3-carboxylic acid ethyl ester

: 1234571-25-5
5-amino-7-ethyl-3-(4-nitrophenyl)-4-oxo-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylic acid ethyl ester

Guidance literature:: With sulfur; triethylamine; for 0.166667h; Microwave irradiation;
DOI:10.1016/j.ultsonch.2009.12.008

Reference yield:

: 15873-51-5
4-nitroaniline hydrochloride

: 1234571-25-5
5-amino-7-ethyl-3-(4-nitrophenyl)-4-oxo-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 3 steps

1.1: water; sodium nitrite / Cooling

1.2: 20 °C / Cooling

2.1: ammonium acetate; acetic acid / 0.33 h / Microwave irradiation

3.1: sulfur; triethylamine / 0.17 h / Microwave irradiation

With ammonium acetate; water; sulfur; acetic acid; triethylamine; sodium nitrite;
DOI:10.1016/j.ultsonch.2009.12.008

Reference yield:

: 1234571-13-1
2-[(4-nitrophenyl)hydrazono]-3-oxohexanoic acid ethyl ester

: 1234571-25-5
5-amino-7-ethyl-3-(4-nitrophenyl)-4-oxo-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 2 steps

1: ammonium acetate; acetic acid / 0.33 h / Microwave irradiation

2: sulfur; triethylamine / 0.17 h / Microwave irradiation

With ammonium acetate; sulfur; acetic acid; triethylamine;
DOI:10.1016/j.ultsonch.2009.12.008