6414-34-2

Basic information

• Product Name: 4,5-dimethyl-2-propyl-1,3-dioxolane
• CAS NO: 6414-34-2
• Molecular Formula: C₈H₁₆O₂
• Molecular Weight: 144.2114
• Mol File: 6414-34-2.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 163.7°C at 760 mmHg
• Flash Point: 51.4°C
• Density: 0.874g/cm³
• Vapor Pressure: 2.67mmHg at 25°C
• Refractive Index: 1.405
• CAS DataBase Reference: 4,5-dimethyl-2-propyl-1,3-dioxolane(CAS DataBase Reference)
• NIST Chemistry Reference: 4,5-dimethyl-2-propyl-1,3-dioxolane(6414-34-2)
• EPA Substance Registry System: 4,5-dimethyl-2-propyl-1,3-dioxolane(6414-34-2)

Safety Data

• Hazardous Substances Data: 6414-34-2(Hazardous Substances Data)

Upstream product

• 1029272-42-1 (2R,3S)-2,3-butanediol 
• 6982-25-8 d,l-2,3-butanediol 
• 513-85-9 2.3-butanediol 

Relevant articles and documents

Transformation of 1,2-diols over perfluorinated resinsulfonic acids (Nafion-H)

The transformations of 1,2-diols over perfluorinated resinsulfonic acids (Nafion-H) were studied, and correlations were examined between the structures of the investigated diols, the possible dehydration routes and the catalytic properties of Nafion-H. Comparisons were also made between the catalytic properties of Nafion-H and NaHX zeolite. Because of its stronger acidity, Nafion-H functions at temperatures considerably lower than those for the usual dehydrating catalysts, e.g. the zeolites. As is well established for other solid electrophilic catalysts, the dehydration of 1,2-diols mainly proceeds via the pinacol rearrangement. The lower temperatures and the stronger acidity of Nafion-H strongly favour the pinacol rearrangement versus 1,2-elimination. The reaction conditions are also advantageous for the formation of substituted 1,3-dioxolanes in a secondary condensation step between the unreacted diol and the primarily formed carbonyl compounds. Nafion-H gradually deactivates during long use, but it can be partially reactivated by washing with acetone.