54889-59-7

Basic information

• Product Name: 3,5,6,7-Tetrahydro-4,8-dimethyl-s-indacen-1(2H)-one
• Synonyms: 3,5,6,7-Tetrahydro-4,8-dimethyl-s-indacen-1(2H)-one
• CAS NO: 54889-59-7
• Molecular Formula: C14H16O
• Molecular Weight: 200.28
• Mol File: 54889-59-7.mol
• Article Data: 1

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 3,5,6,7-Tetrahydro-4,8-dimethyl-s-indacen-1(2H)-one(CAS DataBase Reference)
• NIST Chemistry Reference: 3,5,6,7-Tetrahydro-4,8-dimethyl-s-indacen-1(2H)-one(54889-59-7)
• EPA Substance Registry System: 3,5,6,7-Tetrahydro-4,8-dimethyl-s-indacen-1(2H)-one(54889-59-7)

Safety Data

• Hazardous Substances Data: 54889-59-7(Hazardous Substances Data)

Upstream product

• 106-42-3 para-xylene 
• 6682-71-9 4,7-dimethylindane 
• 22422-19-1 3-chloro-1-(2,5-dimethylphenyl)propan-1-one 
• 5037-60-5 4,7-dimethyl-indan-1-one 

Downstream Products

• 55836-31-2 4,8-dimethyl-1,2,3,5,6,7-hexahydrobenzo<1,2:4,5>dicyclopentene 

Relevant articles and documents

Electron Paramagnetic Resonance Spectra of the Radical Cations of Some Benzocyclobutenes, Benzocyclopentenes and Benzocyclohexenes

1,2,4,5-Tetrahydrobenzodicyclobutene, 1,2,3,5,6,7-hexahydrobenzodicyclopentene and 1,2,3,4,6,7,8,9-octahydrobenzodicyclohexene, and their dimethyl derivatives, and tetramethylbenzocyclo-butene, -pentene and -hexene have been prepared.All except the first compound have been oxidised to their corresponding radical cations, and the EPR spectra have been analysed by assigning McConnell-type Q-values to the substituents in the benzene ring.It is suggested that the ordering of the orbital energy levels (ΨA above ΨS) in 3,6-dimethylbenzobiscyclobutene and -pentene is a manifestation of the Mills-Nixon effect, and results from rehybridisation of the strained molecular framework.In the radical cations of 5,10-dimethyl-1,2,3,4,6,7,8,9-octahydrobenzodicyclohexene and 5,6,7,8-tetramethyl-1,2,3,4-tetrahydrobenzocyclohexene the total unpaired electron density, as implied by the McConnell type of relationship, appears to be less than unity.Various possible causes of this are examined.