Toluene-4-sulfonic acid 7-benzyloxy-5-hydroxy-6-methoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-3-yl ester

Base Information

Chemical Name:Toluene-4-sulfonic acid 7-benzyloxy-5-hydroxy-6-methoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-3-yl ester
CAS No.:188927-42-6
Molecular Formula:C₃₁H₂₆O₉S
Molecular Weight:574.608
Hs Code.:

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

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

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

There total 10 articles about Toluene-4-sulfonic acid 7-benzyloxy-5-hydroxy-6-methoxy-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: 91.0%

: 188927-52-8
Toluene-4-sulfonic acid 7-benzyloxy-5-isopropoxy-6-methoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-3-yl ester

: 188927-42-6
Toluene-4-sulfonic acid 7-benzyloxy-5-hydroxy-6-methoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-3-yl ester

Guidance literature:: With aluminium trichloride; In acetonitrile; for 0.5h; Ambient temperature;
DOI:10.1248/cpb.45.446

Reference yield:

: 3162-51-4
1-(2,4-Bis-benzyloxy-3,6-dimethoxy-phenyl)-ethanone

: 188927-42-6
Toluene-4-sulfonic acid 7-benzyloxy-5-hydroxy-6-methoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-3-yl ester

Guidance literature:: Multi-step reaction with 9 steps

1: 100 percent / conc. HCl, acetic acid / 1 h / Ambient temperature

2: 83 percent / K₂CO₃, KI / acetone; dimethylformamide / Heating

3: 75 percent / AlBr₃, NaI / acetonitrile / 0.25 h / 0 °C

4: pyridine / 2 h / 70 - 80 °C

5: KOH / pyridine / 80 °C

6: 87 percent / conc. H₂SO₄, acetic acid / 1 h / 50 °C

7: 71 percent / dimethyldioxirane / acetone / 0 °C

8: 96 percent / K₂CO₃ / acetone / Heating

9: 91 percent / AlCl₃ / acetonitrile / 0.5 h / Ambient temperature

With pyridine; hydrogenchloride; potassium hydroxide; aluminium trichloride; aluminum tri-bromide; sulfuric acid; 3,3-dimethyldioxirane; potassium carbonate; acetic acid; potassium iodide; sodium iodide; In pyridine; N,N-dimethyl-formamide; acetone; acetonitrile;
DOI:10.1248/cpb.45.446

Reference yield:

: 3162-52-5
1-(4-benzyloxy-2-hydroxy-3,6-dimethoxy-phenyl)-ethanone

: 188927-42-6
Toluene-4-sulfonic acid 7-benzyloxy-5-hydroxy-6-methoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-3-yl ester

Guidance literature:: Multi-step reaction with 8 steps

1: 83 percent / K₂CO₃, KI / acetone; dimethylformamide / Heating

2: 75 percent / AlBr₃, NaI / acetonitrile / 0.25 h / 0 °C

3: pyridine / 2 h / 70 - 80 °C

4: KOH / pyridine / 80 °C

5: 87 percent / conc. H₂SO₄, acetic acid / 1 h / 50 °C

6: 71 percent / dimethyldioxirane / acetone / 0 °C

7: 96 percent / K₂CO₃ / acetone / Heating

8: 91 percent / AlCl₃ / acetonitrile / 0.5 h / Ambient temperature

With pyridine; potassium hydroxide; aluminium trichloride; aluminum tri-bromide; sulfuric acid; 3,3-dimethyldioxirane; potassium carbonate; acetic acid; potassium iodide; sodium iodide; In pyridine; N,N-dimethyl-formamide; acetone; acetonitrile;
DOI:10.1248/cpb.45.446