9H-Xanthen-9-one, 1-hydroxy-2,3,4,5-tetramethoxy- synthesis

2synthesis methods

Product Name:9H-Xanthen-9-one, 1-hydroxy-2,3,4,5-tetramethoxy-
CAS Number:22961-79-1
Molecular formula:C17H16O7
Molecular Weight:332.3

3-Methoxy-2-[(4-methoxyphenyl)methoxy]benzaldehyde

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9H-Xanthen-9-one, 1-hydroxy-2,3,4,5-tetramethoxy-

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Yield:-

Steps:

Multi-step reaction with 6 steps
1.1: tetrahydrofuran / 3 h / 0 °C
2.1: n-butyllithium / tetrahydrofuran; hexane / 0 °C / Inert atmosphere
2.2: Inert atmosphere
3.1: toluene / 130 °C / Inert atmosphere; Reflux
4.1: Jones reagent / acetone / 0 °C
5.1: trifluoroacetic acid / dichloromethane / 1 h / 20 °C / Inert atmosphere
6.1: potassium carbonate / acetone / 20 °C

References:

Nichols, Alexander L.;Zhang, Patricia;Martin, Stephen F. [Organic Letters,2011,vol. 13,# 17,p. 4696 - 4699]

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References