3-bromo-2-phenyl-4H-chromen-4-one → 7-Amino-3-bromo-2-phenyl-1-benzopyran-4-one

Participants

Role	Name	HCID	Charge
Reactant	3-bromo-2-phenyl-4H-chromen-4-one	HCID 466278	—
Reactant	7-Aminoflavone	HCID 16217321	—
Product	7-Amino-3-bromo-2-phenyl-1-benzopyran-4-one	HCID 67067676	80%

Reaction Steps

Following the procedure for 3-bromo-2-phenyl-1-benzopyran-4-one, 7-amino-2-phenyl-1-benzopyran-4-one (1.08 g, 4.55 mmol) was reacted to give the title compound as a yellow solid (1.15 g, 80%). 1H-NMR (400 MHz, CDCl3) δ 7.97-8.02 (m, 3H), 7.53-7.56 (m, 3H), 6.79-6.82 (m, 2H), 4.77 (bs, 2H).

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08546376B2
Source dataset	uspto-grants-2013_10
ORD ID	ord-11e5f2c9262943738a35031877d5b00b
Source note	uspto-grants-2013_10