34859-98-8

Basic information

• Product Name: 2-methylpentan-2-yl acetate
• Synonyms: 2-Pentanol, 2-methyl-, acetate
• CAS NO: 34859-98-8
• Molecular Formula: C₈H₁₆O₂
• Molecular Weight: 144.2114
• Mol File: 34859-98-8.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 143.6°C at 760 mmHg
• Flash Point: 39.1°C
• Density: 0.878g/cm³
• Vapor Pressure: 5.3mmHg at 25°C
• Refractive Index: 1.412
• CAS DataBase Reference: 2-methylpentan-2-yl acetate(CAS DataBase Reference)
• NIST Chemistry Reference: 2-methylpentan-2-yl acetate(34859-98-8)
• EPA Substance Registry System: 2-methylpentan-2-yl acetate(34859-98-8)

Safety Data

• Hazardous Substances Data: 34859-98-8(Hazardous Substances Data)

Upstream product

• 4127-45-1 1,1,2-trimethylcyclopropane 
• 64-19-7 acetic acid 

Relevant articles and documents

Electrophilic Cleavage of Cyclopropanes. Acetolysis of Alkylcyclopropanes

The solvent kinetic hydrogen isotope effect showed that proton transfer is at least partially rate determining for the acetolysis of cyclopropanes which span a range of 1010 in reactivity.The energies and structures of protonated cyclobutanes were calculated and provide an explanation for the large difference in reactivity between cyclopropanes and cyclobutanes despite their similarity in enthalpies of reaction.The rates and products of acetolysis of a series of alkyl-substituted cyclopropanes were examined.The data, along with the results of ab initio calculations, indicate that for alkyl-substituted cyclopropanes, the protonated species is highly unsymmetrical.Cleavage of the cyclopropane ring always occurs so that the nucleophile becomes attached to the most substituted carbon, but the proton may attack either of the remaining carbons.Proton attack may lead to either retention or inversion of configuration depending on the orientation of the attacking proton with respect to the ring.