634921-79-2

Basic information

• Product Name: (E)-9-phenyl-8-nonene-2,4-dione
• Synonyms: (E)-9-phenyl-8-nonene-2,4-dione
• CAS NO: 634921-79-2
• Molecular Weight: 230.307
• Mol File: 634921-79-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (E)-9-phenyl-8-nonene-2,4-dione(CAS DataBase Reference)
• NIST Chemistry Reference: (E)-9-phenyl-8-nonene-2,4-dione(634921-79-2)
• EPA Substance Registry System: (E)-9-phenyl-8-nonene-2,4-dione(634921-79-2)

Safety Data

• Hazardous Substances Data: 634921-79-2(Hazardous Substances Data)

Upstream product

• 7515-41-5 (E)-(4-bromobut-1-en-1-yl)benzene 
• 123-54-6 acetylacetone 

Downstream Products

• 575451-15-9 (6E)-1-diazo-7-phenyl-6-hepten-2-one 

Relevant articles and documents

Asymmetric intramolecular cyclopropanation of diazo compounds with metallosalen complexes as catalyst: Structural tuning of salen ligand

Intramolecular cyclopropanation of alkenyl α-diazoacetates and alkenyl diazomethyl ketones was examined by using optically active (ON+)Ru(II)(salen) and Co(II)(salen) complexes as catalysts. For the cyclization of 2-alkenyl α-diazoacetates, Co(II)(salen) complexes 9 and 10 were found to be superior catalysts to the corresponding (ON+)Ru(II)(salen) complexes 4 and 5. On the other hand, (ON+)Ru(II)(salen) complex 2 was found to be the catalyst of choice for the cyclization of 3-alkenyl diazomethyl ketones, and complex 4 was found to be a good catalyst for the cyclization of (E)-4-alkenyl diazomethyl ketones. The present study demonstrates that metallosalen complexes, especially optically active (ON+)Ru(II)(salen) and Co(II)(salen) complexes, can serve as efficient catalysts for the cyclization of alkenyl diazocarbonyl compounds, if a suitable salen ligand is used as the chiral auxiliary.