9-(2-benzenesulfonylamino-2-oxo-ethyl)-4-oxo-5,10-dihydro-4H-imidazo[1,2-a]indeno[1,2-e]pyrazine-2-carboxylic acid ethyl ester

Base Information

Chemical Name:9-(2-benzenesulfonylamino-2-oxo-ethyl)-4-oxo-5,10-dihydro-4H-imidazo[1,2-a]indeno[1,2-e]pyrazine-2-carboxylic acid ethyl ester
CAS No.:193814-14-1
Molecular Formula:C₂₄H₂₀N₄O₆S
Molecular Weight:492.512
Hs Code.:

9-(2-benzenesulfonylamino-2-oxo-ethyl)-4-oxo-5,10-dihydro-4<i>H</i>-imidazo[1,2-<i>a</i>]indeno[1,2-<i>e</i>]pyrazine-2-carboxylic acid ethyl ester

Synonyms:9-(2-benzenesulfonylamino-2-oxo-ethyl)-4-oxo-5,10-dihydro-4H-imidazo[1,2-a]indeno[1,2-e]pyrazine-2-carboxylic acid ethyl ester

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Chemical Property of 9-(2-benzenesulfonylamino-2-oxo-ethyl)-4-oxo-5,10-dihydro-4H-imidazo[1,2-a]indeno[1,2-e]pyrazine-2-carboxylic acid ethyl ester

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Technology Process of 9-(2-benzenesulfonylamino-2-oxo-ethyl)-4-oxo-5,10-dihydro-4H-imidazo[1,2-a]indeno[1,2-e]pyrazine-2-carboxylic acid ethyl ester

There total 9 articles about 9-(2-benzenesulfonylamino-2-oxo-ethyl)-4-oxo-5,10-dihydro-4H-imidazo[1,2-a]indeno[1,2-e]pyrazine-2-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:

: 18698-97-0
ortho-bromophenylacetic acid

: 193814-14-1
9-(2-benzenesulfonylamino-2-oxo-ethyl)-4-oxo-5,10-dihydro-4H-imidazo[1,2-a]indeno[1,2-e]pyrazine-2-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 9 steps

1.1: Pd(OAc)2; tri-o-tolylphosphine

2.1: H₂ / Pd/C

3.1: conc. H₂SO₄

4.1: 84 percent / AcOH; 47 percent HBr; Br₂ / 1 h / 20 °C

5.1: 36 percent / toluene / 10 h / 80 °C

6.1: 90 percent / K₂CO₃ / acetone / 4 h / Heating

7.1: 89 percent / 6N HCl / dioxane

8.1: CDI / tetrahydrofuran / 1.5 h / 20 °C

8.2: 65 percent / NaH / tetrahydrofuran / 1 h / 20 °C

9.1: AcONH₄; AcOH / Heating

With hydrogenchloride; palladium diacetate; sulfuric acid; ammonium acetate; hydrogen bromide; hydrogen; bromine; potassium carbonate; acetic acid; tris-(o-tolyl)phosphine; 1,1'-carbonyldiimidazole; palladium on activated charcoal; In tetrahydrofuran; 1,4-dioxane; acetone; toluene; 1.1: Heck reaction / 3.1: Friedel-Craft cyclization;
DOI:10.1016/S0960-894X(00)00592-8

Reference yield:

: 183734-98-7
3-(2-carboxymethylphenyl)acrylic acid

: 193814-14-1
9-(2-benzenesulfonylamino-2-oxo-ethyl)-4-oxo-5,10-dihydro-4H-imidazo[1,2-a]indeno[1,2-e]pyrazine-2-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 8 steps

1.1: H₂ / Pd/C

2.1: conc. H₂SO₄

3.1: 84 percent / AcOH; 47 percent HBr; Br₂ / 1 h / 20 °C

4.1: 36 percent / toluene / 10 h / 80 °C

5.1: 90 percent / K₂CO₃ / acetone / 4 h / Heating

6.1: 89 percent / 6N HCl / dioxane

7.1: CDI / tetrahydrofuran / 1.5 h / 20 °C

7.2: 65 percent / NaH / tetrahydrofuran / 1 h / 20 °C

8.1: AcONH₄; AcOH / Heating

With hydrogenchloride; sulfuric acid; ammonium acetate; hydrogen bromide; hydrogen; bromine; potassium carbonate; acetic acid; 1,1'-carbonyldiimidazole; palladium on activated charcoal; In tetrahydrofuran; 1,4-dioxane; acetone; toluene; 2.1: Friedel-Craft cyclization;
DOI:10.1016/S0960-894X(00)00592-8

Reference yield:

: 70526-40-8
3-(2-carboxymethylphenyl)propionic acid

: 193814-14-1
9-(2-benzenesulfonylamino-2-oxo-ethyl)-4-oxo-5,10-dihydro-4H-imidazo[1,2-a]indeno[1,2-e]pyrazine-2-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 7 steps

1.1: conc. H₂SO₄

2.1: 84 percent / AcOH; 47 percent HBr; Br₂ / 1 h / 20 °C

3.1: 36 percent / toluene / 10 h / 80 °C

4.1: 90 percent / K₂CO₃ / acetone / 4 h / Heating

5.1: 89 percent / 6N HCl / dioxane

6.1: CDI / tetrahydrofuran / 1.5 h / 20 °C

6.2: 65 percent / NaH / tetrahydrofuran / 1 h / 20 °C

7.1: AcONH₄; AcOH / Heating

With hydrogenchloride; sulfuric acid; ammonium acetate; hydrogen bromide; bromine; potassium carbonate; acetic acid; 1,1'-carbonyldiimidazole; In tetrahydrofuran; 1,4-dioxane; acetone; toluene; 1.1: Friedel-Craft cyclization;
DOI:10.1016/S0960-894X(00)00592-8