2,2-dimethyl-6-oxo-2H,6H-benzofuro[3,2-c]pyrano[2,3-h]chromen-9-yl 4-methylbenzenesulfonate

Base Information

Chemical Name:2,2-dimethyl-6-oxo-2H,6H-benzofuro[3,2-c]pyrano[2,3-h]chromen-9-yl 4-methylbenzenesulfonate
CAS No.:870456-51-2
Molecular Formula:C₂₇H₂₀O₇S
Molecular Weight:488.518
Hs Code.:

Synonyms:2,2-dimethyl-6-oxo-2H,6H-benzofuro[3,2-c]pyrano[2,3-h]chromen-9-yl 4-methylbenzenesulfonate

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Chemical Property of 2,2-dimethyl-6-oxo-2H,6H-benzofuro[3,2-c]pyrano[2,3-h]chromen-9-yl 4-methylbenzenesulfonate

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Technology Process of 2,2-dimethyl-6-oxo-2H,6H-benzofuro[3,2-c]pyrano[2,3-h]chromen-9-yl 4-methylbenzenesulfonate

There total 11 articles about 2,2-dimethyl-6-oxo-2H,6H-benzofuro[3,2-c]pyrano[2,3-h]chromen-9-yl 4-methylbenzenesulfonate 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: 61.0%

: 870456-50-1
6-(3-iodo-6-{[(4-methylphenyl)sulfonyl]oxy}-1-benzofuran-2-yl)-2,2-dimethyl-2H-chromen-5-yl acetate

: 201230-82-2
carbon monoxide

: 870456-51-2
2,2-dimethyl-6-oxo-2H,6H-benzofuro[3,2-c]pyrano[2,3-h]chromen-9-yl 4-methylbenzenesulfonate

Guidance literature:: With bis-triphenylphosphine-palladium(II) chloride; potassium carbonate; In N,N-dimethyl-formamide; at 60 ℃; for 6h;
DOI:10.1021/jo0517038

Reference yield:

: 870456-47-6
6-iodo-2,2-dimethyl-2H-chromen-5-ol

: 870456-51-2
2,2-dimethyl-6-oxo-2H,6H-benzofuro[3,2-c]pyrano[2,3-h]chromen-9-yl 4-methylbenzenesulfonate

Guidance literature:: Multi-step reaction with 4 steps

1: 90 percent / pyridine / 2 h / 20 °C

2: 60 percent / PdCl₂(PPh₃)2; CuI; iPr₂NH / dimethylformamide / 1 h / 60 °C

3: 78 percent / I₂ / CH₂Cl₂ / 12 h / 25 °C

4: 61 percent / PdCl₂(PPh₃)2; K₂CO₃ / dimethylformamide / 6 h / 60 °C

With pyridine; bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; iodine; potassium carbonate; diisopropylamine; In dichloromethane; N,N-dimethyl-formamide; 2: Sonogashira cross-coupling reaction;
DOI:10.1021/jo0517038

Reference yield:

: 870456-48-7
6-iodo-2,2'-dimethyl-2H-chromen-5-yl acetate

: 870456-51-2
2,2-dimethyl-6-oxo-2H,6H-benzofuro[3,2-c]pyrano[2,3-h]chromen-9-yl 4-methylbenzenesulfonate

Guidance literature:: Multi-step reaction with 3 steps

1: 60 percent / PdCl₂(PPh₃)2; CuI; iPr₂NH / dimethylformamide / 1 h / 60 °C

2: 78 percent / I₂ / CH₂Cl₂ / 12 h / 25 °C

3: 61 percent / PdCl₂(PPh₃)2; K₂CO₃ / dimethylformamide / 6 h / 60 °C

With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; iodine; potassium carbonate; diisopropylamine; In dichloromethane; N,N-dimethyl-formamide; 1: Sonogashira cross-coupling reaction;
DOI:10.1021/jo0517038