2-(4-hydroxy-2-methoxyphenyl)-5-hydroxy-8,8-dimethyl-3-(3-methyl-but-2-enyl)-pyrano[2,3-f]chromen-4-one

Base Information

• Chemical Name: 2-(4-hydroxy-2-methoxyphenyl)-5-hydroxy-8,8-dimethyl-3-(3-methyl-but-2-enyl)-pyrano[2,3-f]chromen-4-one
• CAS No.: 67690-76-0
• Molecular Formula: C₂₆H₂₆O₆
• Molecular Weight: 434.489

Synonyms:2-(4-hydroxy-2-methoxyphenyl)-5-hydroxy-8,8-dimethyl-3-(3-methyl-but-2-enyl)-pyrano[2,3-f]chromen-4-one

Chemical Property of 2-(4-hydroxy-2-methoxyphenyl)-5-hydroxy-8,8-dimethyl-3-(3-methyl-but-2-enyl)-pyrano[2,3-f]chromen-4-one

Chemical Property:

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Technology Process of 2-(4-hydroxy-2-methoxyphenyl)-5-hydroxy-8,8-dimethyl-3-(3-methyl-but-2-enyl)-pyrano[2,3-f]chromen-4-one

There total 2 articles about 2-(4-hydroxy-2-methoxyphenyl)-5-hydroxy-8,8-dimethyl-3-(3-methyl-but-2-enyl)-pyrano[2,3-f]chromen-4-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: 60.0%

2-(2,4-dimethoxyphenyl)-5-methoxy-8,8-dimethyl-3-(3-methyl-but-2-enyl)-pyrano[2,3-f]chromen-4-one (62596-33-2) → 2-(2-hydroxy-4-methoxyphenyl)-5-hydroxy-8,8-dimethyl-3-(3-methyl-but-2-enyl)-pyrano[2,3-f]chromen-4-one (64079-99-8) + 2-(4-hydroxy-2-methoxyphenyl)-5-hydroxy-8,8-dimethyl-3-(3-methyl-but-2-enyl)-pyrano[2,3-f]chromen-4-one (67690-76-0)

Guidance literature:

2-(2,4-dimethoxyphenyl)-5-methoxy-8,8-dimethyl-3-(3-methyl-but-2-enyl)-pyrano[2,3-f]chromen-4-one; With lithium thioethoxide; In N,N,N,N,N,N-hexamethylphosphoric triamide; at 10 - 70 ℃; Inert atmosphere;

With ammonium chloride; In N,N,N,N,N,N-hexamethylphosphoric triamide; Inert atmosphere;

DOI:10.1016/j.tet.2009.12.002

Reference yield:

→ 2-(4-hydroxy-2-methoxyphenyl)-5-hydroxy-8,8-dimethyl-3-(3-methyl-but-2-enyl)-pyrano[2,3-f]chromen-4-one (67690-76-0)

Guidance literature:

Morusin I m. CH2N2;

DOI:10.1248/cpb.25.1155

Reference yield:

2-(4-hydroxy-2-methoxyphenyl)-5-hydroxy-8,8-dimethyl-3-(3-methyl-but-2-enyl)-pyrano[2,3-f]chromen-4-one (67690-76-0) + p-Methoxybenzyl bromide (2746-25-0) → C34H34O7 (1216959-09-9)

Guidance literature:

With potassium carbonate; In acetone; at 70 ℃; for 1h; Inert atmosphere;

DOI:10.1016/j.tet.2009.12.002

upstream raw materials:

2-(2,4-dimethoxyphenyl)-5-methoxy-8,8-dimethyl-3-(3-methyl-but-2-enyl)-pyrano[2,3-f]chromen-4-one

Downstream raw materials:

C₃₄H₃₄O₇

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