1H,3H-Naphtho(1,8-cd)pyran-1,3-dione, 6-bromo- → HCID 22624038, compound

HRID 566966

Reaction equation

HRID 566966 reaction equation
Cl.[CH2:2]([O:9][NH2:10])[C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[CH:11]1[CH:20]=[C:19]2[C:21]([O:23][C:24](=O)[C:17]3=[C:18]2[C:13](=[C:14]([Br:26])[CH:15]=[CH:16]3)[CH:12]=1)=[O:22]>N1C=CC=CC=1>[CH2:2]([O:9][N:10]1[C:24](=[O:23])[C:17]2[CH:16]=[CH:15][C:14]([Br:26])=[C:13]3[C:18]=2[C:19](=[CH:20][CH:11]=[CH:12]3)[C:21]1=[O:22])[C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1

Participants

4

Reactant 2

HCID 664931H,3H-Naphtho(1,8-cd)pyran-1,3-dione, 6-bromo-HCID 102312Benzyloxyamine hydrochloride

Product 1

HCID 22624038HCID 22624038, compoundYield 87.2%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

O-Benzyl hydroxylamine hydrochloride (2.0 g, 12.5 mmol) and 4-bromo-1,8-naphthalic anhydride (2.9 g, 10.5 mmol) were reacted in pyridine (50 mL) following the procedure of Example D to give 3.5 g of the title compound.

Sources & evidence

ORD record
ord-3aef29a4c6f249d3aa331bf3e433efb1
Source dataset
uspto-grants-2001_01
Patent number
US06177423B1

Linked notes

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