1-(2,4-dichlorophenyl)-6-(diethylamino)-3,4-dihydropyrimido[1,2-a]benzimidazol-2(1H)-one

Base Information

Chemical Name:1-(2,4-dichlorophenyl)-6-(diethylamino)-3,4-dihydropyrimido[1,2-a]benzimidazol-2(1H)-one
CAS No.:1173977-75-7
Molecular Formula:C₂₀H₂₀Cl₂N₄O
Molecular Weight:403.311
Hs Code.:

Synonyms:1-(2,4-dichlorophenyl)-6-(diethylamino)-3,4-dihydropyrimido[1,2-a]benzimidazol-2(1H)-one

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Chemical Property of 1-(2,4-dichlorophenyl)-6-(diethylamino)-3,4-dihydropyrimido[1,2-a]benzimidazol-2(1H)-one

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Technology Process of 1-(2,4-dichlorophenyl)-6-(diethylamino)-3,4-dihydropyrimido[1,2-a]benzimidazol-2(1H)-one

There total 7 articles about 1-(2,4-dichlorophenyl)-6-(diethylamino)-3,4-dihydropyrimido[1,2-a]benzimidazol-2(1H)-one 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: 82.0%

: 1173983-02-2
3-[2-[(2,4-dichlorophenyl)amino]-7-(diethylamino)-1H-benzimidazol-1-yl]propanoic acid

: 1173977-75-7
1-(2,4-dichlorophenyl)-6-(diethylamino)-3,4-dihydropyrimido[1,2-a]benzimidazol-2(1H)-one

Guidance literature:: With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; In N,N-dimethyl-formamide; at 20 ℃; for 1h;

Reference yield:

: 1173983-00-0
ethyl 3-[2-[(2,4-dichlorophenyl)amino]-7-(diethylamino)-1H-benzimidazol-1-yl]propanoate

: 1173977-75-7
1-(2,4-dichlorophenyl)-6-(diethylamino)-3,4-dihydropyrimido[1,2-a]benzimidazol-2(1H)-one

Guidance literature:: Multi-step reaction with 2 steps

1: sodium hydroxide / methanol; tetrahydrofuran / 1 h / 0 - 20 °C

2: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine / N,N-dimethyl-formamide / 24 h / 20 °C

With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; sodium hydroxide; In tetrahydrofuran; methanol; N,N-dimethyl-formamide;
DOI:10.1016/j.bmc.2018.01.020

Reference yield:

: 1173982-98-3
ethyl N-[2-amino-6-({[(2,4-dichlorophenyl)amino]carbonothioyl}amino)phenyl]-β-alaninate

: 1173977-75-7
1-(2,4-dichlorophenyl)-6-(diethylamino)-3,4-dihydropyrimido[1,2-a]benzimidazol-2(1H)-one

Guidance literature:: Multi-step reaction with 4 steps

1.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / tetrahydrofuran / 2 h / 50 °C

2.1: acetic acid / methanol / 0.5 h / 0 °C

2.2: 12 h / 0 - 20 °C

3.1: sodium hydroxide / methanol; tetrahydrofuran / 1 h / 0 - 20 °C

4.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine / N,N-dimethyl-formamide / 24 h / 20 °C

With acetic acid; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; sodium hydroxide; In tetrahydrofuran; methanol; N,N-dimethyl-formamide;
DOI:10.1016/j.bmc.2018.01.020