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ChemicalBook CAS DataBase List Amentoflavone

Amentoflavone synthesis

2synthesis methods
-

Yield:-

Reaction Conditions:

with pyridine hydrochloride at 180;

Steps:


Treatment of isoginkgetin with a large excess of methyl iodide (5 equiv) under basic conditions furnished fully methylated compound 11 [cf. Scheme 2 (Fig. 6)] . The use of 3 equivalents of Mel produced a mixture of trialkylated products 9 and 10 which were easily separated by column chromatography. Reaction of isoginkgetin with pyridinium chloride allows ether cleavage and afforded the polyphenolic compound 12. Scheme 2 (cf. Figure 6):

References:

INSTITUT GUSTAVE ROUSSY;APCHER, Sébastien;PIERSON, Alison;BOULPICANTE, Mathilde;DOLOR, Renko, Zafiarisoa;ALAMI, Mouad;DARRIGRAND, Romain WO2018/189210, 2018, A1 Location in patent:Page/Page column 23-24

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