3149-12-0

Basic information

• Product Name: 2,6-diethoxytetrahydro-2H-pyran
• Synonyms: 2,6-Diethoxy-tetrahydropyran
• CAS NO: 3149-12-0
• Molecular Formula: C₉H₁₈O₃
• Molecular Weight: 174.2374
• Mol File: 3149-12-0.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 224.2°C at 760 mmHg
• Flash Point: 72.6°C
• Density: 0.97g/cm³
• Vapor Pressure: 0.138mmHg at 25°C
• Refractive Index: 1.436
• CAS DataBase Reference: 2,6-diethoxytetrahydro-2H-pyran(CAS DataBase Reference)
• NIST Chemistry Reference: 2,6-diethoxytetrahydro-2H-pyran(3149-12-0)
• EPA Substance Registry System: 2,6-diethoxytetrahydro-2H-pyran(3149-12-0)

Safety Data

• Hazardous Substances Data: 3149-12-0(Hazardous Substances Data)

Usage

Physical appearance

colorless to pale yellow liquid

Odor

sweet and fruity, reminiscent of apple and pear

Uses

flavor and fragrance additive, solvent in industrial and laboratory applications

Structure

six-membered ring containing oxygen, two ethoxy (C2H5O) groups attached

Stability

relatively stable and inert

Common applications

production of perfumes, cosmetics, consumer products

Upstream product

• 103-75-3 2-ethoxy-2,3-dihydro-4H-pyran 
• 53084-07-4 2-(2-hydroxyethoxy)-3,4-dihydropyran 
• 64-17-5 ethanol 
• 111-30-8 Glutaraldehyde 

Downstream Products

• 27611-76-3 5-Ethoxy-1,5-diphenyl-pentan-1-ol 

Relevant articles and documents

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Biomimetically relevant self-condensations of C5 units derived from lysine

In various conditions, dimerization of pentanedial-derived units gives rise to interesting skeletons, which are reminiscent of alkaloids known to be biosynthesized in Nature via lysine metabolism. The Royal Society of Chemistry 2010.

Une voie d'acces aux alcoxy-5 trimethyl-4,4,7a hexahydro-3aα,4,5,6,7,7aα (3H)-benzofurannones-2

Starting from 2-methoxy (or ethoxy)-3,4-dihydro-2H-pyran, a series of four reactions allows to obtain a good yield of two 4-alcoxy-3,3-dimethyl-1-hydroxymethyl cyclohexenes which are converted to methylenecyclohexylacetic acids by different or sigmatropic reactions.These acids are cyclized at room temperature with concentrated sulfuric acid into bicyclic γ-lactones having a cis-junction.The stereospecificity of this reaction and the stability of the isomers obtained are discussed.