768-58-1

Basic information

• Product Name: 2-ethyl-5,5-dimethyl-1,3-dioxane
• Synonyms: 2-ethyl-5,5-dimethyl-1,3-dioxane;2-Ethyl-5,5-dimethyl-1,3-dioxane solution in acetonitrile
• CAS NO: 768-58-1
• Molecular Formula: C₈H₁₆O₂
• Molecular Weight: 144.21144
• EINECS: 212-197-2
• Mol File: 768-58-1.mol
• Article Data: 6

Chemical Properties

• Boiling Point: 154℃
• Flash Point: 50°(122°F)
• Appearance: /
• Density: 0.88
• Vapor Pressure: 2.94mmHg at 25°C
• Refractive Index: 1.404
• CAS DataBase Reference: 2-ethyl-5,5-dimethyl-1,3-dioxane(CAS DataBase Reference)
• NIST Chemistry Reference: 2-ethyl-5,5-dimethyl-1,3-dioxane(768-58-1)
• EPA Substance Registry System: 2-ethyl-5,5-dimethyl-1,3-dioxane(768-58-1)

Safety Data

• HazardClass: 3
• Hazardous Substances Data: 768-58-1(Hazardous Substances Data)

Usage

Uses

2-Ethyl-5,5-dimethyl-1,3-dioxane (CAS: 768-58-1) is a useful research compound.

InChI:InChI=1/C8H16O2/c1-4-7-9-5-8(2,3)6-10-7/h7H,4-6H2,1-3H3

Upstream product

• 62999-86-4 5,5-Dimethyl-2-N,N-dimethylamino-1,3-dioxane 
• 126-30-7 2,2-Dimethyl-1,3-propanediol 
• 123-38-6 propionaldehyde 
• 122557-77-1 2,5,5-trimethyl-2-chloro-1,3-dioxa-2-silacyclohexane 
• 84566-32-5 bis(2,5,5-trimethyl-1,3-dioxa-2-silacyclohexan-2-yl)ether 
• 84566-29-0 2-isopropoxy-2,5,5-trimethyl-1,3-dioxa-2-silacyclohexane 
• 925-90-6 ethylmagnesium bromide 

Relevant articles and documents

Synthesis of novel solid acidic ionic liquid polymer and its catalytic activities

The novel solid acidic ionic liquid polymer has been synthesized through the copolymerization of acidic ionic liquid oligomers and resorcinol- formaldehyde (RF resin). The catalytic activities were investigated through the acetalization. The results showed that the PIL was very efficient for the reactions with the average yield over 99.0%. The procedure was quite simple with just one-step to complete both the reactions. The high hydrophobic BET surface, high catalytic activities and high stability gave the PIL great potential for green chemical processes. Pleiades Publishing, Ltd., 2013.

Identification of 1,3-dioxanes and 1,3-dioxolanes as malodorous compounds at trace levels in river water, groundwater, and tap water

A study of organic compounds imparting odor problems in river waters and groundwaters has been conducted. The Tordera aquifer located in Barcelona and Girona (NE Spain) is the water supply reserve for many seasonally crowded villages on the coast. Closed loop stripping analysis (CLSA) and flavor profile analysis (FPA) have been employed as analytical tools to identify the compounds responsible for the odor complaints. The feasibility of purge-and- trap (P and T) has also been evaluated. The 2-alkyl-5,5-dimethyl-1,3-dioxanes and 2-alkyl-4-methyl-1,3-dioxolanes were the most significant compounds identified in river water and groundwater with a threshold odor of 10 ng/L for 2-ethyl-5,5-dimethyl-1,3-dioxane (2EDD), the most malodorous compound. The analyses were carried out by HRGC/MS, and the synthesized 1,3-dioxanes and dioxolanes were characterized by CI-MS and EI-MS/MS techniques. A company, currently manufacturing saturated and unsaturated polyester resins, located in the upper course of the river, produced these compounds as byproducts during the synthesis of resins. The pollution by dioxanes and dioxolanes affected all the aquifer and slowly diminished to the ppt levels when the company was forced to correctly treat their wastewaters. Additional examples of the presence of dioxanes and dioxolanes in wastewaters of other resin plants and also tap water of Barcelona are shown. A study of organic compounds imparting odor problems in river waters and groundwaters has been conducted. The Tordera aquifer located in Barcelona and Girona (NE Spain) is the water supply reserve for many seasonally crowded villages on the coast. Closed loop stripping analysis (CLSA) and flavor profile analysis (FPA) have been employed as analytical tools to identify the compounds responsible for the odor complaints. The feasibility of purge-and-trap (P&T) has also been evaluated. The 2-alkyl-5,5-dimethyl-1,3-dioxanes and 2-alkyl-4-methyl-1,3-dioxolanes were the most significant compounds identified in river water and groundwater with a threshold odor of 10 ng/L for 2-ethyl-5,5-dimethyl-1,3-dioxane (2EDD), the most malodorous compound. The analyses were carried out by HRGC/MS, and the synthesized 1,3-dioxanes and dioxolanes were characterized by CI-MS and EI-MS/MS techniques. A company, currently manufacturing saturated and unsaturated polyester resins, located in the upper course of the river, produced these compounds as byproducts during the synthesis of resins. The pollution by dioxanes and dioxolanes affected all the aquifer and slowly diminished to the ppt levels when the company was forced to correctly treat their wastewaters. Additional examples of the presence of dioxanes and dioxolanes in wastewaters of other resin plants and also tap water of Barcelona are shown.

SYNTHESIS AND CERTAIN CHEMICAL PROPERTIES OF 2-METHYL-2-ALKOXY-2-SILA-1,3-DIOXACYCLOHEXANES

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