76192-30-8

Basic information

• Product Name: 2,4-diphenyl-5,6-dihydro-7,8-benzochromenylium bromide
• Synonyms: 2,4-diphenyl-5,6-dihydro-7,8-benzochromenylium bromide
• CAS NO: 76192-30-8
• Molecular Weight: 415.329
• Mol File: 76192-30-8.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: 2,4-diphenyl-5,6-dihydro-7,8-benzochromenylium bromide(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4-diphenyl-5,6-dihydro-7,8-benzochromenylium bromide(76192-30-8)
• EPA Substance Registry System: 2,4-diphenyl-5,6-dihydro-7,8-benzochromenylium bromide(76192-30-8)

Safety Data

• Hazardous Substances Data: 76192-30-8(Hazardous Substances Data)

Upstream product

• 65193-62-6 3,4-dihydro-2-(3-oxo-1,3-diphenylpropyl)naphthalen-1(2H)-one 
• 35339-16-3 (E)-2-(3-oxo-1,3-diphenylpropylidene)-3,4-dihydronaphthalen-1(2H)-one 

Downstream Products

• 87444-95-9 1-(2,2-dimethyl-propyl)-2,4-diphenyl-5,6-dihydro-benzo[h]quinolinium; bromide 
• 76192-22-8 2,4-Diphenyl-1-m-tolyl-5,6-dihydro-benzo[h]quinolinium; bromide 
• 76192-23-9 1,2,4-Triphenyl-5,6-dihydro-benzo[h]quinolinium; bromide 
• 76192-24-0 2,4-Diphenyl-1-p-tolyl-5,6-dihydro-benzo[h]quinolinium; bromide 
• 76192-25-1 2,4-Diphenyl-1-pyridin-2-yl-5,6-dihydro-benzo[h]quinolinium; bromide 

Relevant articles and documents

Heterocyclization of α,α′-dibromo 1,5-diketones

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Halogenation of propanonyl-5,6-benzocyclohexan-1-ones

Bromination and chlorination with phosphorus pentachloride of propanoyl-5,6-benzocyclohexan-1-one under different conditions was studied. It was established that basically existed a chance to obtain dibromo, tribromo, dichlorosubstituted condensed semicyclic 1,5-diketones. A process of heterocyclization was found to compete with halogenation. As a result of this side process which depends on the substituent character at the C3 atom of the aliphatic chain of dioxocompound formed benzohydrochromylium salt.

Improved Methods for Conversion of Primary Amines into Bromides

N-Alkyl- and N-benzyl-4-p-chlorophenyl-2,3,5,6-tetraphenyl- N-alkyl- and N-benzyl-2,3,4,5,6-pentaphenyl-, and N-alkyl- and N-benzyl-2,4,6-triphenyl-pyridinium bromides on pyrolysis at 180-220 deg C give the corresponding alkyl and benzyl bromides in high yield. 1-Benzyl-5,6-dihydro-2,4-diphenylbenzoquinolinium trifluoromethanesulphonate gave benzyl bromide on heating with KBr in dimethylformamide at 100 deg C, and n-octyl bromide (80percent) was obtained from the corresponding pentacyclic bromide in refluxing acetonitrile.