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ChemicalBook CAS DataBase List 6-Methoxy-3-(methoxycarbonyl)-2-(4-nitrophenyl)-4H-benzopyran-4-one
132018-13-4

6-Methoxy-3-(methoxycarbonyl)-2-(4-nitrophenyl)-4H-benzopyran-4-one synthesis

2synthesis methods
-

Yield:-

Steps:

Multi-step reaction with 2 steps
1: 1.) lithium bis(trimethylsilyl)amide / 1.) a.) THF, -78 deg C, b.) -10 deg C, 2 h, 2.) a.) from -78 deg C to 25 deg C, 3-4 h, b.) RT, 4 h
2: 1.) Mg, CCl4 / 1.) ethanol, 50 to 55 deg C, 5 to 6 h, 2.) benzene, reflux, 8 h

References:

Cushman, Mark;Nagarathnam, Dhanapalan;Burg, Debra L.;Geahlen, Robert L. [Journal of Medicinal Chemistry,1991,vol. 34,# 2,p. 798 - 806]

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