3-(4-bromophenyl)-7-hydroxy-4-oxo-4H-1-benzopyran-8-carboxaldehyde

Base Information

• Chemical Name: 3-(4-bromophenyl)-7-hydroxy-4-oxo-4H-1-benzopyran-8-carboxaldehyde
• CAS No.: 1415465-13-2
• Molecular Formula: C₁₆H₉BrO₄
• Molecular Weight: 345.149
• Mol file: 1415465-13-2.mol

Synonyms:3-(4-bromophenyl)-7-hydroxy-4-oxo-4H-1-benzopyran-8-carboxaldehyde

Chemical Property of 3-(4-bromophenyl)-7-hydroxy-4-oxo-4H-1-benzopyran-8-carboxaldehyde

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 3-(4-bromophenyl)-7-hydroxy-4-oxo-4H-1-benzopyran-8-carboxaldehyde

There total 4 articles about 3-(4-bromophenyl)-7-hydroxy-4-oxo-4H-1-benzopyran-8-carboxaldehyde 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%

hexamethylenetetramine (100-97-0) + 7-hydroxy-3-(4’-bromophenyl)-4H-1-benzopyran-4-one (96644-05-2) → 3-(4-bromophenyl)-7-hydroxy-4-oxo-4H-1-benzopyran-8-carboxaldehyde (1415465-13-2)

Guidance literature:

hexamethylenetetramine; 7-hydroxy-3-(4’-bromophenyl)-4H-1-benzopyran-4-one; With acetic acid; at 100 ℃; for 6h;

With hydrogenchloride; In water; at 100 ℃; for 0.0833333h;

DOI:10.1002/cbdv.201400337

Reference yield:

4-Bromophenylacetonitrile (16532-79-9) → 3-(4-bromophenyl)-7-hydroxy-4-oxo-4H-1-benzopyran-8-carboxaldehyde (1415465-13-2)

Guidance literature:

Multi-step reaction with 4 steps

1.1: hydrogenchloride; zinc(II) chloride / diethyl ether

2.1: water / 1 h / Reflux

3.1: boron trifluoride diethyl etherate / 50 °C

3.2: 1 h / 100 °C

4.1: acetic acid / 6 h / 100 °C

4.2: 0.08 h / 100 °C

With hydrogenchloride; boron trifluoride diethyl etherate; water; acetic acid; zinc(II) chloride; In diethyl ether; 4.1: |Duff Aldehyde Synthesis / 4.2: |Duff Aldehyde Synthesis;

DOI:10.1002/cbdv.201400337

Reference yield:

2-(4-bromophenyl)-1-(2,4-dihydroxyphenyl)ethan-1-one (92152-60-8) → 3-(4-bromophenyl)-7-hydroxy-4-oxo-4H-1-benzopyran-8-carboxaldehyde (1415465-13-2)

Guidance literature:

Multi-step reaction with 2 steps

1.1: boron trifluoride diethyl etherate / 50 °C

1.2: 1 h / 100 °C

2.1: acetic acid / 6 h / 100 °C

2.2: 0.08 h / 100 °C

With boron trifluoride diethyl etherate; acetic acid; 2.1: |Duff Aldehyde Synthesis / 2.2: |Duff Aldehyde Synthesis;

DOI:10.1002/cbdv.201400337

upstream raw materials:

hexamethylenetetramine

7-hydroxy-3-(4’-bromophenyl)-4H-1-benzopyran-4-one

2-(4-bromophenyl)-1-(2,4-dihydroxyphenyl)ethan-1-one

4-Bromophenylacetonitrile

Downstream raw materials:

C₂₀H₁₃BrO₄