5669-09-0

Basic information

• Product Name: 1,1'-[ethylidenebis(oxy)]bis[2-methylpropane]
• Synonyms: 1,1'-[ethylidenebis(oxy)]bis[2-methylpropane];Propane, 1,1-ethylidenebis(oxy)bis2-methyl-;1,1-DI-ISOBUTOXYETHANE;1-(1-isobutoxyethoxy)-2-methyl-propane;2-methyl-1-[1-(2-methylpropoxy)ethoxy]propane
• CAS NO: 5669-09-0
• Molecular Formula: C₁₀H₂₂O₂
• Molecular Weight: 174.28048
• EINECS: 227-129-7
• Mol File: 5669-09-0.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 245.28°C (rough estimate)
• Flash Point: 35.9°C
• Appearance: /
• Density: 0.8200
• Refractive Index: 1.4021 (estimate)
• CAS DataBase Reference: 1,1'-[ethylidenebis(oxy)]bis[2-methylpropane](CAS DataBase Reference)
• NIST Chemistry Reference: 1,1'-[ethylidenebis(oxy)]bis[2-methylpropane](5669-09-0)
• EPA Substance Registry System: 1,1'-[ethylidenebis(oxy)]bis[2-methylpropane](5669-09-0)

Safety Data

• Hazardous Substances Data: 5669-09-0(Hazardous Substances Data)

Usage

Physical state

Colorless, odorless liquid

Uses

Lubricant, solvent, and fuel additive

Derivation

Reaction of 2,2-dimethyl-1,3-dioxolane with ethylene oxide

Acute toxicity

Low

Potential hazards

Irritation to skin, eyes, and respiratory system upon exposure

Carcinogenicity

Not known to be a carcinogen

Mutagenicity

Not known to be a mutagen

Environmental effects

Limited data available

Safety precautions

Handle with care and follow safety guidelines to minimize health and environmental hazards

Upstream product

• 109-53-5 isobutyl vinyl ether 
• 78-83-1 2-methyl-propan-1-ol 
• 75-07-0 acetaldehyde 
• 123-63-7 paracetaldehyde 
• 74-86-2 acetylene 
• 57155-06-3 (Z)-4-methoxybut-3-en-2-one 

Downstream Products

• 109-53-5 isobutyl vinyl ether 
• 110-19-0 2-methylpropyl acetate 

Relevant articles and documents

Cationic polymerization of isobutyl vinyl ether coinitiated with heteropolyacid or its salts in aqueous medium

The suspension cationic polymerization of isobutyl vinyl ether (IBVE) in aqueous medium could be achieved by using H3PW12O 40, AlPW12O40, FePW12O40, K3PW12O40, or Na3PW 12O40 as efficient water-tolerant coinitiators in the presence of HCl. The addition reaction of IBVE with H2O occurred to form IBVE-H2O adduct and then subsequent decomposition immediately took place or turned to acetaldehyde diisobutyl acetal (A) in the presence of AlPW12O40, and (A) decomposed rapidly to form 2-isobutanol (B) and acetaldehyde (C). Cationic polymerization of IBVE in aqueous medium was promoted greatly with increasing HCl concentration and proceeded extremely rapidly to get high polymer yield even at low concentration of AlPW 12O40 of 0.3 mM. A sufficient amount of HCl was needed to decrease the hydrolysis of initiator IBVE-HCl and to accelerate the polymerization in aqueous medium simultaneously. The yield and molecular weight of poly(IBVE) increased with increasing concentrations of HCl and AlPW 12O40 or with decreasing temperature. The isotactic-rich poly(IBVE)s with m diad of around 60%, having Mn of 1200-4500 g mol-1 and monomodal molecular weight distribution could be obtained via cationic polymerization of IBVE in aqueous medium. This is the first example of cationic polymerization of IBVE in aqueous medium coinitiated by heteropolyacid and its salts.

A HIGHLY DIASTEREOSELECTIVE SYNTHESIS OF DL-OLEANDROSE

Racemic oleandrose (2,6-dideoxy-3-O-methyl-arabino-hexose) has been obtained starting from the Diels-Alder adduct between 4-methoxy-3-buten-2-one and isobutyl vinyl ether, which was converted into a mixture of the isobutyl β- and α-oleandrosides through hydroboration-oxidation.The latter reaction is highly diastereoselective since attack by borane takes place exclusively anti to the OMe group; none of the diastereoisomeric cymarosides are formed.The only side-products are small amounts of the isobutyl β- and α-amicetosides formed by a demethoxylation occuring during the hydroboration step.