77630-20-7

Basic information

• Product Name: 2,2,4,4-Tetramethyl-4-(phenylselenenyl)heptane-3,5-dione
• CAS NO: 77630-20-7
• Molecular Weight: 339.336
• Mol File: 77630-20-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2,2,4,4-Tetramethyl-4-(phenylselenenyl)heptane-3,5-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2,4,4-Tetramethyl-4-(phenylselenenyl)heptane-3,5-dione(77630-20-7)
• EPA Substance Registry System: 2,2,4,4-Tetramethyl-4-(phenylselenenyl)heptane-3,5-dione(77630-20-7)

Safety Data

• Hazardous Substances Data: 77630-20-7(Hazardous Substances Data)

Upstream product

• 5707-04-0 Phenylselenyl chloride 
• 1118-71-4 2,2,6,6-tetramethylheptane-3,5-dione 

Relevant articles and documents

A Simple Method for the Efficient Synthesis of Unsaturated β-Dicarbonyl Compounds

β-Dicarbonyl compounds which are substantially enolized can be readily converted to their corresponding unsaturated derivative by (a) selenation using a 1:1 complex of phenylselenenyl chloride/pyridine and (b) in situ oxidation with 30percent H2O2 (after removal of the pyridine).The isolated yields of unsaturated β-dicarbonyl compounds obtained in this way are typically between 80percent and 100percent.If the selenation step (step a) is carried out in the presence of excess reagent, a slow ''nonoxidative'' elimination occurs.Synthetic and mechanistic details of this ''nonoxidative''process are discussed.