33693-77-5

Basic information

• Product Name: 2-bromo-3,3-dimethylbut-1-ene
• CAS NO: 33693-77-5
• Molecular Formula: C₆H₁₁Br
• Molecular Weight: 163.0555
• Mol File: 33693-77-5.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 124.2°C at 760 mmHg
• Flash Point: 37.3°C
• Density: 1.201g/cm³
• Vapor Pressure: 15.6mmHg at 25°C
• Refractive Index: 1.459
• CAS DataBase Reference: 2-bromo-3,3-dimethylbut-1-ene(CAS DataBase Reference)
• NIST Chemistry Reference: 2-bromo-3,3-dimethylbut-1-ene(33693-77-5)
• EPA Substance Registry System: 2-bromo-3,3-dimethylbut-1-ene(33693-77-5)

Safety Data

• Hazardous Substances Data: 33693-77-5(Hazardous Substances Data)

Upstream product

• 640-21-1 1,2-dibromo-3,3-dimethylbutane 
• 917-92-0 3,3-Dimethylbut-1-yne 

Downstream Products

• 157945-83-0 (E)-2-(3,3-dimethylbut-1-en-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 
• 261638-97-5 2-(3,3-dimethylbut-1-en-2-yl)-4,4,5 ,5-tetramethyl-1,3 ,2-dioxaborolane 

Relevant articles and documents

Removal of water - a factor influencing the synthesis of alkynes in a phase-transfer catalyzed β-elimination reaction

Acetylene derivatives 4 were synthesized from the corresponding vicinal bromo compounds 2 in the phase-transfer catalyzed hydrogen bromide β-elimination reaction using solid potassium hydroxide as a base, xylene as a solvent, and a phase-transfer catalyst. The yields of the synthesized acetylene derivatives 4 were substantially improved when water formed in the process had been removed.