5,6-dihydro-4-hydroxy-6-((naphthalen-2-yloxy)methyl)-6-phenylpyran-2-one

Base Information

• Chemical Name: 5,6-dihydro-4-hydroxy-6-((naphthalen-2-yloxy)methyl)-6-phenylpyran-2-one
• CAS No.: 959425-66-2
• Molecular Formula: C₂₂H₁₈O₄
• Molecular Weight: 346.383
• Mol file: 959425-66-2.mol

Synonyms:5,6-dihydro-4-hydroxy-6-((naphthalen-2-yloxy)methyl)-6-phenylpyran-2-one

Chemical Property of 5,6-dihydro-4-hydroxy-6-((naphthalen-2-yloxy)methyl)-6-phenylpyran-2-one

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 5,6-dihydro-4-hydroxy-6-((naphthalen-2-yloxy)methyl)-6-phenylpyran-2-one

There total 2 articles about 5,6-dihydro-4-hydroxy-6-((naphthalen-2-yloxy)methyl)-6-phenylpyran-2-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: 67.0%

2-(naphthalene-2-yloxy)-1-phenylethanone (14538-46-6) + acetoacetic acid methyl ester (105-45-3) → 5,6-dihydro-4-hydroxy-6-((naphthalen-2-yloxy)methyl)-6-phenylpyran-2-one (959425-66-2)

Guidance literature:

acetoacetic acid methyl ester; With sodium hydride; In tetrahydrofuran; at 0 ℃; for 0.25h;

With n-butyllithium; In tetrahydrofuran; at 0 ℃; for 0.25h;

2-(naphthalene-2-yloxy)-1-phenylethanone; Further stages;

DOI:10.1007/s00044-010-9307-4

Reference yield:

α-bromoacetophenone (70-11-1) → 5,6-dihydro-4-hydroxy-6-((naphthalen-2-yloxy)methyl)-6-phenylpyran-2-one (959425-66-2)

Guidance literature:

Multi-step reaction with 2 steps

1.1: potassium carbonate / acetone / 2 h / Reflux

2.1: sodium hydride / tetrahydrofuran / 0.25 h / 0 °C

2.2: 0.25 h / 0 °C

With sodium hydride; potassium carbonate; In tetrahydrofuran; acetone;

DOI:10.1007/s00044-010-9307-4

Reference yield:

5,6-dihydro-4-hydroxy-6-((naphthalen-2-yloxy)methyl)-6-phenylpyran-2-one (959425-66-2) → 5,6-dihydro-4-hydroxy-6-((naphthalen-2-yloxy)methyl)-6-phenyl-3-(phenylthio)pyran-2-one (959425-56-0)

Guidance literature:

Multi-step reaction with 2 steps

1: N-Bromosuccinimide / tert-butyl alcohol / 2 h / Darkness; Reflux

2: piperidine / chloroform / 2 h / 0 - 20 °C

With piperidine; N-Bromosuccinimide; In chloroform; tert-butyl alcohol;

DOI:10.1007/s00044-010-9307-4

upstream raw materials:

2-(naphthalene-2-yloxy)-1-phenylethanone

acetoacetic acid methyl ester

α-bromoacetophenone

Downstream raw materials:

5,6-dihydro-4-hydroxy-6-((naphthalen-2-yloxy)methyl)-6-phenyl-3-(phenylthio)pyran-2-one

3-(o-tolylthio)-5,6-dihydro-4-hydroxy-6-((naphthalen-2-yloxy)methyl)-6-phenylpyran-2-one

3-(2-ethylphenylthio)-5,6-dihydro-4-hydroxy-6-((naphthalen-2-yloxy)methyl)-6-phenylpyran-2-one

3-(2-chlorophenylthio)-5,6-dihydro-4-hydroxy-6-((naphthalen-2-yloxy)methyl)-6-phenylpyran-2-one