Toluene-4-sulfonic acid 5,7-dimethoxy-6-methoxymethoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-3-yl ester

Base Information

Chemical Name:Toluene-4-sulfonic acid 5,7-dimethoxy-6-methoxymethoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-3-yl ester
CAS No.:170234-94-3
Molecular Formula:C₂₇H₂₆O₁₀S
Molecular Weight:542.563
Hs Code.:

Synonyms:Toluene-4-sulfonic acid 5,7-dimethoxy-6-methoxymethoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-3-yl ester

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Chemical Property of Toluene-4-sulfonic acid 5,7-dimethoxy-6-methoxymethoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-3-yl ester

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Technology Process of Toluene-4-sulfonic acid 5,7-dimethoxy-6-methoxymethoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-3-yl ester

There total 7 articles about Toluene-4-sulfonic acid 5,7-dimethoxy-6-methoxymethoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-3-yl ester 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: 98.0%

: 98-59-9
p-toluenesulfonyl chloride

: 170234-68-1
3-Hydroxy-5,7-dimethoxy-6-methoxymethoxy-2-(4-methoxy-phenyl)-chromen-4-one

: 170234-94-3
Toluene-4-sulfonic acid 5,7-dimethoxy-6-methoxymethoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-3-yl ester

Guidance literature:: With potassium carbonate; In acetone; Heating;
DOI:10.1246/bcsj.68.2033

Reference yield:

: 6938-19-8
6-hydroxy-5,7-dimethoxy-2-(4-methoxyphenyl)-4H-chromen-4-one

: 170234-94-3
Toluene-4-sulfonic acid 5,7-dimethoxy-6-methoxymethoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-3-yl ester

Guidance literature:: Multi-step reaction with 3 steps

1: 95 percent / i-Pr₂NEt / CH₂Cl₂ / Ambient temperature

2: 1.) dimethyldioxirane, 2.) TsOH / 1.) CH₂Cl₂, Me₂CO, 0 deg C, 2.) CH₂Cl₂, 0 deg C, 0.5 h

3: 98 percent / K₂CO₃ / acetone / Heating

With 3,3-dimethyldioxirane; potassium carbonate; toluene-4-sulfonic acid; N-ethyl-N,N-diisopropylamine; In dichloromethane; acetone;
DOI:10.1246/bcsj.68.2033

Reference yield:

: 6962-57-8
3,6-dihydroxy-2,4-dimethoxyacetophenone

: 170234-94-3
Toluene-4-sulfonic acid 5,7-dimethoxy-6-methoxymethoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-3-yl ester

Guidance literature:: Multi-step reaction with 7 steps

1: i-Pr₂NEt / CH₂Cl₂

2: pyridine / 50 - 60 °C

3: KOH, pyridine / 80 °C

4: 89 percent / conc. H₂SO₄, AcOH / 60 °C

5: 95 percent / i-Pr₂NEt / CH₂Cl₂ / Ambient temperature

6: 1.) dimethyldioxirane, 2.) TsOH / 1.) CH₂Cl₂, Me₂CO, 0 deg C, 2.) CH₂Cl₂, 0 deg C, 0.5 h

7: 98 percent / K₂CO₃ / acetone / Heating

With pyridine; potassium hydroxide; sulfuric acid; 3,3-dimethyldioxirane; potassium carbonate; toluene-4-sulfonic acid; acetic acid; N-ethyl-N,N-diisopropylamine; In dichloromethane; acetone;
DOI:10.1246/bcsj.68.2033