1-(3-ethyl-7-hydroxy-4-methyl-2-oxo-2H-1-benzopyran-8-yl)-3-(4-chlorophenyl)urea

Base Information

Chemical Name:1-(3-ethyl-7-hydroxy-4-methyl-2-oxo-2H-1-benzopyran-8-yl)-3-(4-chlorophenyl)urea
CAS No.:1592003-42-3
Molecular Formula:C₁₉H₁₇ClN₂O₄
Molecular Weight:372.808
Hs Code.:

Synonyms:1-(3-ethyl-7-hydroxy-4-methyl-2-oxo-2H-1-benzopyran-8-yl)-3-(4-chlorophenyl)urea

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Chemical Property of 1-(3-ethyl-7-hydroxy-4-methyl-2-oxo-2H-1-benzopyran-8-yl)-3-(4-chlorophenyl)urea

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Technology Process of 1-(3-ethyl-7-hydroxy-4-methyl-2-oxo-2H-1-benzopyran-8-yl)-3-(4-chlorophenyl)urea

There total 3 articles about 1-(3-ethyl-7-hydroxy-4-methyl-2-oxo-2H-1-benzopyran-8-yl)-3-(4-chlorophenyl)urea 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: 57.0%

: 1592003-39-8
8-amino-3-ethyl-7-hydroxy-4-methyl-2H-1-benzopyran-2-one

: 104-12-1
p-chlorphenylisocyanate

: 1592003-42-3
1-(3-ethyl-7-hydroxy-4-methyl-2-oxo-2H-1-benzopyran-8-yl)-3-(4-chlorophenyl)urea

Guidance literature:: In dichloromethane; for 6h; Reflux;
DOI:10.1016/j.bioorg.2014.02.003

Reference yield:

: 53666-71-0
3-ethyl-7-hydroxy-4-methyl-chromen-2-one

: 1592003-42-3
1-(3-ethyl-7-hydroxy-4-methyl-2-oxo-2H-1-benzopyran-8-yl)-3-(4-chlorophenyl)urea

Guidance literature:: Multi-step reaction with 3 steps

1: sodium hydroxide / 1 h / 20 °C

2: sodium dithionite; ammonium hydroxide; water / 0.25 h / Reflux

3: dichloromethane / 6 h / Reflux

With ammonium hydroxide; sodium dithionite; water; sodium hydroxide; In dichloromethane;
DOI:10.1016/j.bioorg.2014.02.003

Reference yield:

: 1592003-38-7
3-ethyl-7-hydroxy-4-methyl-8-phenylazo-2H-1-benzopyran-2-one

: 1592003-42-3
1-(3-ethyl-7-hydroxy-4-methyl-2-oxo-2H-1-benzopyran-8-yl)-3-(4-chlorophenyl)urea

Guidance literature:: Multi-step reaction with 2 steps

1: sodium dithionite; ammonium hydroxide; water / 0.25 h / Reflux

2: dichloromethane / 6 h / Reflux

With ammonium hydroxide; sodium dithionite; water; In dichloromethane;
DOI:10.1016/j.bioorg.2014.02.003