4916-74-9

Basic information

• Product Name: Benzene, 1,1'-(3,5-dimethyl-2,5-cyclopentadiene-1,2-diyl)bis-
• CAS NO: 4916-74-9
• Molecular Formula: C19H18
• Molecular Weight: 246.352
• Mol File: 4916-74-9.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Benzene, 1,1'-(3,5-dimethyl-2,5-cyclopentadiene-1,2-diyl)bis-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1,1'-(3,5-dimethyl-2,5-cyclopentadiene-1,2-diyl)bis-(4916-74-9)
• EPA Substance Registry System: Benzene, 1,1'-(3,5-dimethyl-2,5-cyclopentadiene-1,2-diyl)bis-(4916-74-9)

Safety Data

• Hazardous Substances Data: 4916-74-9(Hazardous Substances Data)

Upstream product

• 5423-06-3 (4S,5S)-4-hydroxy-2,5-dimethyl-3,4-diphenylcyclopent-2-en-1-one 
• 5141-37-7 2,5-Dimethyl-3,4-diphenyl-cyclopent-2-en-1-ol 
• 16643-55-3 2,5-dimethyl-3,4-diphenyl-2-cyclopentene-1-one 
• 5141-38-8 2,5-Dimethyl-3,4-diphenyl-cyclopent-2-en-1,4-diol 
• 5423-06-3 4-hydroxy-2,5-dimethyl-3,4-diphenylcyclopent-2-enone 
• 134-81-6 benzil 
• 96-22-0 pentan-3-one 

Downstream Products

• 1122614-29-2 (η5-cyclopentadienyl)(η5-1,4-dimethyl-2,3-diphenylcyclopentadienyl)zirconocene dichloride 
• 1122614-26-9 bis(η5-1,4-dimethyl-2,3-diphenylcyclopentadienyl)zirconocene dichloride 
• 1291-32-3 zirconocene dichloride 

Relevant articles and documents

Pd(II)-Catalyzed Enantioselective Desymmetrization of Polycyclic Cyclohexenediones: Conjugate Addition versus Oxidative Heck

Pd(II)-catalyzed desymmetrization of polycyclic cyclohexenediones has been achieved with high enantio- and diastereoselectivities. Up to five contiguous stereocenters are desymmetrized, while simultaneously, an additional stereocenter is created by the enantioselective conjugate addition. Surprisingly, the conjugate addition products dominate even under typical oxidative Heck conditions, and these observations may provide some insight into the competition between the two related reactions.