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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2301351Generated: October 29, 2026

Boron tribromide → 3,6,3',4'-Tetrahydroxyflavone

https://huagongshe.com/reaction/2301351

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBoron tribromideHCID 25134—
ReactantHCID 18372877HCID 18372877—
Product3,6,3',4'-TetrahydroxyflavoneHCID 66758150,536,600%

Reaction Steps

The reaction was conducted according to the same procedure as Example 57 except that 50 mg (159 pmol) of the compound obtained in Example 5 instead of the compound obtained in Example 12 and 5.0 molar equivalents of boron tribromide (BBr3) were used. Then the resulting product was separated by preparative TLC to give 23 mg of the title compound in a yield of 51%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06500846B1
Source datasetuspto-grants-2002_12
ORD IDord-374bb4a5eb744f08b3a7cbc7eb1b3090
Source noteuspto-grants-2002_12