21593-13-5

Basic information

• Product Name: 2r-methoxy-4-trans,6-trans-dimethyl-1,3-dioxane
• CAS NO: 21593-13-5
• Molecular Weight: 130.187
• Mol File: 21593-13-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2r-methoxy-4-trans,6-trans-dimethyl-1,3-dioxane(CAS DataBase Reference)
• NIST Chemistry Reference: 2r-methoxy-4-trans,6-trans-dimethyl-1,3-dioxane(21593-13-5)
• EPA Substance Registry System: 2r-methoxy-4-trans,6-trans-dimethyl-1,3-dioxane(21593-13-5)

Safety Data

• Hazardous Substances Data: 21593-13-5(Hazardous Substances Data)

Upstream product

• 1825-14-5 pentane-1,3-diol 
• 149-73-5 trimethyl orthoformate 

Relevant articles and documents

Stereoelectronic Control in the Gas-Phase Ionization of Cyclic Ortho Esters

As a test of stereoelectronic control in the gas phase, the rates of ionic cleavage of the exocyclic methoxyl group of 2-methoxy-cis-4,6-dimethyl-1,3-dioxane diastereomers have been measured by ion cyclotron resonance techniques.The reactant ions were isopropyl and (methylthio)methyl cations derived from electron impact cleavage of 2-methylpropane and 2-(methylthio)ethanol, respectively.Within experimental error, the rates of cleavage of the equatorial methoxyl were the same as those of the axial methoxyl with a given reactant ion.With use of mixtures of deuterium-labeled and unlabeled diastereomers and reactant ions derived from isopropyl ether and acetylacetone, a slight (10percent) preference was seen for cleavage of the axial methoxyl group.The significance of these results in terms of stereoelectronic and conformational effects is discussed.