59848-69-0

Basic information

• Product Name: 3,6-dihydro-4-methyl-2-(2-methylpropyl)-2H-pyran
• Synonyms: 3,6-dihydro-4-methyl-2-(2-methylpropyl)-2H-pyran;Einecs 261-954-3
• CAS NO: 59848-69-0
• Molecular Formula: C₁₀H₁₈O
• Molecular Weight: 154.24932
• EINECS: 261-954-3
• Mol File: 59848-69-0.mol
• Article Data: 15

Chemical Properties

• Boiling Point: 198.9°C at 760 mmHg
• Flash Point: 68.3°C
• Appearance: /
• Density: 0.858g/cm³
• Vapor Pressure: 0.495mmHg at 25°C
• Refractive Index: 1.441
• CAS DataBase Reference: 3,6-dihydro-4-methyl-2-(2-methylpropyl)-2H-pyran(CAS DataBase Reference)
• NIST Chemistry Reference: 3,6-dihydro-4-methyl-2-(2-methylpropyl)-2H-pyran(59848-69-0)
• EPA Substance Registry System: 3,6-dihydro-4-methyl-2-(2-methylpropyl)-2H-pyran(59848-69-0)

Safety Data

• Hazardous Substances Data: 59848-69-0(Hazardous Substances Data)

Usage

InChI:InChI=1/C10H18O/c1-8(2)6-10-7-9(3)4-5-11-10/h4,8,10H,5-7H2,1-3H3

Upstream product

• 763-32-6 2-methyl-1-buten-4-ol 
• 590-86-3 isovaleraldehyde 
• 7437-61-8 2-methyl-3,4-epoxy-1-butene 
• 108-10-1 4-methyl-2-pentanone 
• 23007-34-3 6-hydroxy-2,6-dimethyl-oct-7-en-4-one 
• 352-66-9 3-methylbutyroyl fluoride 
• 136123-55-2 isovaleryl fluorosulfonate 
• 78-79-5 isoprene 
• 50-00-0 formaldehyd 
• 115-11-7 isobutene 
• 101004-57-3 5-bromo-4-chloro-2-isobutyl-4-methyltetrahydropyran 
• 62032-60-4 2,6-Dimethyl-1-octen-3,5-diol 
• 58303-58-5 2-Isobutyl-4,4-dimethyl-1,3-dioxane 
• 766-15-4 4,4-dimethyl-1,3-dioxane 

Relevant articles and documents

Heteropoly acid catalysts in Prins cyclization for the synthesis of Florol

H3PW12O40 heteropoly acid supported on SiO2 and its bulk acidic cesium salt Cs2.5H0.5PW12O40 are demonstrated to be highly active and recyclable solid catalysts for Pr

Contribution to elucidation of the mechanism of preparation of 2-isobutyl-4-methyltetrahydro-2H-pyran-4-ol

The effects of catalyst type (sulfuric acid, Amberlyst 15, p-toluenesulfonic acid, and p-dodecylbenzenesulfonic acid) and of addition of water on the preparation of 2-isobutyl-4-methyltetrahydro-2H-pyran-4-ol by Prins cyclization were studied. It was discovered that in the absence of added water the amphiphilic character of the acid had the main effect and that organic acids were unsuitable for preparation of this compound. From the perspective of the ratio of the amount of the desired product to that of dihydropyrans, after addition of water the results obtained by use of p-toluenesulfonic acid (ratio 3.5, selectivity 67 %) were comparable with those obtained by use of sulfuric acid and were better than those obtained by use of Amberlyst 15 (ratio 2.3, selectivity 68 %). A detailed study of the mechanism confirmed that addition of water to the double bonds of dihydropyrans does not occur.

ACYLATION OF 1,3-ALKADIENES BY ACYL FLUOROSULFONATES. STEREOSPECIFIC SYNTHESIS OF E AND Z ISOMERS OF CONJUGATED DIENONES

Acyl fluorosulfonates generated from acyl fluorides and SO3 permits acylation of butadiene and isoprene to give triconjugated dienones.This reaction proceeds stereospecifically and leads to E isomers of the corresponding dienones in the case of butadiene and Z isomers in the case of isoprene.