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ChemicalBook--->CAS DataBase List--->62208-68-8

62208-68-8

62208-68-8 Structure

62208-68-8 Structure
IdentificationBack Directory
[Name]

Benzofuro[3,2-d]pyriMidine-2,4(1H,3H)-dione
[CAS]

62208-68-8
[Synonyms]

1H-[1]benzofuro[3,2-d]pyrimidine-2,4-dione
BNZOFURO[3,2-D]PYRIMIDINE-2,4(1H,3H)-DIONE
Benzofuro[3,2-d]pyriMidine-2,4(1H,3H)-dione
1H-Benzo[4,5]furo[3,2-D]pyrimidine-2,4-dione
[Molecular Formula]

C10H6N2O3
[MDL Number]

MFCD00788168
[MOL File]

62208-68-8.mol
[Molecular Weight]

202.17
Chemical PropertiesBack Directory
[storage temp. ]

Inert atmosphere,Room Temperature
[Appearance]

Off-white to light yellow Solid
Safety DataBack Directory
[Symbol(GHS) ]


GHS07
[Signal word ]

Warning
[Hazard statements ]

H315-H319
[Precautionary statements ]

P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313
Hazard InformationBack Directory
[Synthesis]

Carbamic acid, N-[2-(aminocarbonyl)-3-benzofuranyl]-, ethyl ester

886950-29-4

Benzofuro[3,2-d]pyriMidine-2,4(1H,3H)-dione

62208-68-8

Ethyl 2-carbamoylbenzofuran-3-ylcarbamate (114 mg, 0.460 mmol, 1.0 eq.) was heated to reflux for 1 h in 5% NaOH solution (3.7 mL, 4.60 mmol, 10.0 eq.) and EtOH (2.2 mL). Upon completion of the reaction, the mixture was cooled to room temperature and the product was precipitated by addition of 37% HCl solution. The solid was collected by filtration and washed sequentially with water and ether. The resulting benzofuro[3,2-d]pyrimidine-2,4(1H,3H)-dione (40 mg, 43% yield) could be used in the next step of the reaction without further purification. The product was characterized as follows: 1H-NMR (500 MHz, DMSO): δ 12.03 (s, 1H), 11.43 (s, 1H), 8.00 (d, 3JHH = 7.3 Hz, 1H), 7.75 (d, 3JHH = 8.5 Hz, 1H), 7.64 (t, 3JHH = 7.3 Hz, 1H), 7.45 (t, 3JHH = 7.3 Hz, 1H), 7.45 (t, 3JHH = 7.3 Hz). 3JHH = 7.3 Hz, 1H); 13C-NMR (100 MHz, DMSO): δ 155.5, 154.9, 151.3, 133.3, 130.6, 129.8, 123.9, 121.6, 117.6, 112.9.

[References]

[1] Patent: WO2010/52569, 2010, A2. Location in patent: Page/Page column 242
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