54653-26-8

Basic information

• Product Name: 2,2-dibromopentane
• Synonyms: 2,2-dibromopentane
• CAS NO: 54653-26-8
• Molecular Formula: C₅H₁₀Br₂
• Molecular Weight: 229.94
• Mol File: 54653-26-8.mol
• Article Data: 1

Chemical Properties

• Melting Point: -28.63°C (estimate)
• Boiling Point: 189°C (estimate)
• Appearance: /
• Density: 1.6400
• Refractive Index: 1.5000
• CAS DataBase Reference: 2,2-dibromopentane(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2-dibromopentane(54653-26-8)
• EPA Substance Registry System: 2,2-dibromopentane(54653-26-8)

Safety Data

• Hazardous Substances Data: 54653-26-8(Hazardous Substances Data)

Upstream product

• 591-95-7 penta-1,2-diene 
• 55904-98-8 2,2-dimethoxypentane 
• 10035-10-6 hydrogen bromide 
• 64-19-7 acetic acid 
• 107-87-9 2-Pentanone 
• 34835-94-4 2-methyl-2-(n-propyl)-1,3-benzodioxole 
• 31844-95-8 2-bromopent-1-ene 
• 627-19-0 1-Pentyne 

Downstream Products

• 10035-10-6 hydrogen bromide 

Relevant articles and documents

Halogenative Deoxygenation of Ketones; Vinyl Bromides and/or gem-Dibromides by Cleavage of 1,3-Benzodioxoles (Ketone Phenylene Acetals) with Boron Tribromide

Representative ketones 1 have been converted in generally good yields to the respective 1,3-benzodioxoles 5 by trans-acetalization of ketone dimethyl acetals with 1,2-dihydroxybenzene, and cleaved with boron tribromide. 1,3-Benzodioxoles derived from α-unbranched aliphatic ketones gave in general a mixture of vinyl bromides and gem-dibromides; pure gem-dibromides could be selectively obtained in most of cases using a suitable reaction time. 1,3-Benzodioxoles derived from α-branched ketones gave complex mixtures and their cleavage appears to be of little synthetic signifance. 1,3-Benzodioxoles of aromatic ketones gave vinyl bromides only.Aliphatic cyclic gem-dibromides 3 were converted to the respective vinyl bromides 2 by phase-transfer-catalysed dehydrobromination.