| Identification | More | [Name]
6-Bromo-2,3-dihydro-4H-chromen-4-one | [CAS]
49660-57-3 | [Synonyms]
4H-1-BENZOPYRAN-4-ONE, 6-BROMO-2,3-DIHYDRO-
6-BROMO-2,3-DIHYDRO-4H-CHROMEN-4-ONE
6-BROMOCHROMAN-4-ONE
6-BROMOCHROMANONE
AKOS BBS-00006811
BUTTPARK 35\07-34
6-Bromo-4-chromanone
6-Bromochromanone (6-Bromochroman-4-one) | [EINECS(EC#)]
663-717-3 | [Molecular Formula]
C9H7BrO2 | [MDL Number]
MFCD00546803 | [Molecular Weight]
227.05 | [MOL File]
49660-57-3.mol |
| Chemical Properties | Back Directory | [Melting point ]
77-83°C | [Boiling point ]
336.6±42.0 °C(Predicted) | [density ]
1.621±0.06 g/cm3(Predicted) | [storage temp. ]
Sealed in dry,Room Temperature | [form ]
powder to crystal | [color ]
White to Orange to Green | [InChI]
InChI=1S/C9H7BrO2/c10-6-1-2-9-7(5-6)8(11)3-4-12-9/h1-2,5H,3-4H2 | [InChIKey]
PFLPVOXSUCCZDH-UHFFFAOYSA-N | [SMILES]
C1OC2=CC=C(Br)C=C2C(=O)C1 | [CAS DataBase Reference]
49660-57-3(CAS DataBase Reference) |
| Questions And Answer | Back Directory | [Uses]
4-Dihydrochromone is a class of natural compounds with excellent biological activities, including anticancer, antibacterial, anti-inflammatory, and anti-allergic activities, as well as antiplatelet aggregation activities. 6-Bromo-4-dihydrochromone is a derivative of 4-dihydrochromone and can be used as a pharmaceutical intermediate. |
| Safety Data | Back Directory | [Hazard Codes ]
Xn | [Risk Statements ]
22 | [WGK Germany ]
3 | [HS Code ]
2914390090 | [Storage Class]
11 - Combustible Solids | [Hazard Classifications]
Acute Tox. 4 Oral |
| Hazard Information | Back Directory | [Chemical Properties]
Pale yellow crystalline solid | [Synthesis]
3-(4-Bromophenoxy)propionic acid (150 g, 0.61 mol) was slowly added to 1.0 liter of concentrated sulfuric acid at room temperature with continuous stirring for 1 hour. Upon completion of the reaction, the mixture was carefully poured into 500 g of ice water, whereupon a white solid precipitated. The white solid was separated by filtration and dried naturally in air. The crude product was purified by recrystallization using ethanol, resulting in 89 g (64% yield) of the target compound 6-bromobenzodihydropyran-4-one as a white solid. | [References]
[1] E-Journal of Chemistry, 2012, vol. 9, # 3, p. 1251 - 1256
[2] Patent: CN106699716, 2017, A. Location in patent: Paragraph 0022; 0035
[3] Australian Journal of Chemistry, 2010, vol. 63, # 11, p. 1582 - 1593
[4] Journal of the American Chemical Society, 1951, vol. 73, p. 4205,4207
[5] Tetrahedron, 2017, vol. 73, # 27-28, p. 3913 - 3922 |
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