359688-89-4

Basic information

• Product Name: 4H-Pyran-4-one, 5-bromo-2,3-dihydro- (9CI)
• Synonyms: 4H-Pyran-4-one, 5-bromo-2,3-dihydro- (9CI)
• CAS NO: 359688-89-4
• Molecular Formula: C5H5BrO2
• Molecular Weight: 177
• Mol File: 359688-89-4.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 187.9±29.0 °C(Predicted)
• Appearance: /
• Density: 1.776±0.06 g/cm3(Predicted)
• CAS DataBase Reference: 4H-Pyran-4-one, 5-bromo-2,3-dihydro- (9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: 4H-Pyran-4-one, 5-bromo-2,3-dihydro- (9CI)(359688-89-4)
• EPA Substance Registry System: 4H-Pyran-4-one, 5-bromo-2,3-dihydro- (9CI)(359688-89-4)

Safety Data

• Hazardous Substances Data: 359688-89-4(Hazardous Substances Data)

Upstream product

• 84302-42-1 2,3-dihydro-4H-pyran-4-one 

Relevant articles and documents

Electrochemical and yeast-catalysed ring-opening of isoxazoles in the synthesis of analogues of the herbicide Grasp

Isoxazoles substituted with an electron-withdrawing group at the 4-position undergo electrochemical and yeast-catalysed N-O bond cleavage. The electrolysis is much more efficient and, with acyl- and alkoxycarbonyl-substituted isoxazoles, it affords the enolised dicarbonylimine functionality characteristic of the herbicide Grasp. Regioisomeric 4- and 5-substituted isoxazoles are accessible through nitrile oxide cycloaddition chemistry, using halogen as a steric auxiliary to control the regiochemistry of reaction. Crystal data for compounds 11 and 19b are presented.