3-(4-bromophenyl)-7-ethyl-8-methyl-2,6-dihydropyrano[6,5-f]-1,4-benzoxazin-6-one

Base Information

Chemical Name:3-(4-bromophenyl)-7-ethyl-8-methyl-2,6-dihydropyrano[6,5-f]-1,4-benzoxazin-6-one
CAS No.:1592003-56-9
Molecular Formula:C₂₀H₁₆BrNO₃
Molecular Weight:398.256
Hs Code.:

Synonyms:3-(4-bromophenyl)-7-ethyl-8-methyl-2,6-dihydropyrano[6,5-f]-1,4-benzoxazin-6-one

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Chemical Property of 3-(4-bromophenyl)-7-ethyl-8-methyl-2,6-dihydropyrano[6,5-f]-1,4-benzoxazin-6-one

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Technology Process of 3-(4-bromophenyl)-7-ethyl-8-methyl-2,6-dihydropyrano[6,5-f]-1,4-benzoxazin-6-one

There total 3 articles about 3-(4-bromophenyl)-7-ethyl-8-methyl-2,6-dihydropyrano[6,5-f]-1,4-benzoxazin-6-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: 65.0%

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

: 99-73-0,132309-76-3
para-bromophenacyl bromide

: 1592003-56-9
3-(4-bromophenyl)-7-ethyl-8-methyl-2,6-dihydropyrano[6,5-f]-1,4-benzoxazin-6-one

Guidance literature:: With sodium ethanolate; In ethanol; for 2h; Reflux;
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

: 1592003-56-9
3-(4-bromophenyl)-7-ethyl-8-methyl-2,6-dihydropyrano[6,5-f]-1,4-benzoxazin-6-one

Guidance literature:: Multi-step reaction with 2 steps

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

2: sodium ethanolate / ethanol / 2 h / Reflux

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

Reference yield:

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

: 1592003-56-9
3-(4-bromophenyl)-7-ethyl-8-methyl-2,6-dihydropyrano[6,5-f]-1,4-benzoxazin-6-one

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: sodium ethanolate / ethanol / 2 h / Reflux

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