4359-51-7

Basic information

• Product Name: 2-ethyl-2,4,5-trimethyl-1,3-dioxolane
• Synonyms: 1,3-Dioxolane, 2-ethyl-2,4,5-trimethyl-; 2-Ethyl-2,4,5-trimethyl-1,3-dioxolane
• CAS NO: 4359-51-7
• Molecular Formula: C₈H₁₆O₂
• Molecular Weight: 144.2114
• Mol File: 4359-51-7.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 147.5°C at 760 mmHg
• Flash Point: 42.3°C
• Density: 0.864g/cm³
• Vapor Pressure: 5.59mmHg at 25°C
• Refractive Index: 1.399
• CAS DataBase Reference: 2-ethyl-2,4,5-trimethyl-1,3-dioxolane(CAS DataBase Reference)
• NIST Chemistry Reference: 2-ethyl-2,4,5-trimethyl-1,3-dioxolane(4359-51-7)
• EPA Substance Registry System: 2-ethyl-2,4,5-trimethyl-1,3-dioxolane(4359-51-7)

Safety Data

• Hazardous Substances Data: 4359-51-7(Hazardous Substances Data)

Usage

General Description

2-ethyl-2,4,5-trimethyl-1,3-dioxolane is a chemical compound with the molecular formula C9H18O2. It is a colorless liquid with a fruity odor and is commonly used as a solvent in the production of perfumes, cosmetics, and pharmaceuticals. It is also used as a flavoring agent in the food industry. 2-ethyl-2,4,5-trimethyl-1,3-dioxolane is flammable and should be handled with care. It is known to be harmful if swallowed or inhaled and can cause skin and eye irritation. Additionally, it is important to follow proper safety precautions when working with this chemical, including wearing protective clothing and ensuring adequate ventilation in the work area.

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

Conversion of 2,3-Butanediol over Phosphate Catalysts

2,3-Butanediol (BDO) is an excellent feedstock for expanding the network of bio-based chemicals through catalytic technologies. The dehydration of BDO provides an alternative green route to important chemicals such as methyl ethyl ketone (MEK) and 1,3-butadiene (BD). In this contribution, we report on the catalytic performance of boron (BP), aluminum (AlP), titanium (TiP), zirconium (ZrP), and niobium (NbP) phosphates in BDO dehydration. The kinetic study points to three reaction pathways operating over phosphate catalysts, leading to MEK, 2-methyl-propanal (MP), and BD via intermediate 3-butene-2-ol (3B2OL) formation. The major reaction pathway is shown to involve pinacol rearrangement to MEK. The reactivity of phosphates is found to increase in the order: BPTiPZrP=NbPAlP. The best catalytic performance is achieved over AlP, which shows the highest selectivity towards MEK (78 %) at 100 % 2,3-butanediol conversion.

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.