Transacetylation of 1,3-dioxa-2-silacycloalkanes by diols

Journal Article · Mon Oct 10 04:00:00 EDT 1988 · J. Appl. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6084874

Nedogrel, E P; Musavirov, R S; Zhurkina, I P; Kantor, E A; Rakhmankulov, D L

The authors studied the reaction of 1,3-dioxa-2-silacyclohexanes with diols and pentaerythritol leading to a new pair of compounds, 1,3-dioxa-2-silacycloalkane-diol. The reaction reaches equilibrium in a few minutes at room temperature. The conversion of the initial compounds usually reaches 25-45%. Increase in temperature to 80-100/sup 0/C increases the conversion of the initial reagents by 20-26% but leads to decrease in the concentration of the end products, possibly because of increase in the role of the polymerization processes. The reaction of 1,3-dioxa-2-silacycloalkanes with diols at 16-20/sup 0/C in the presence of acid catalysts leads to a new pair of compounds and is a convenient method for introducing substituents into different positions of the ring and changing the number of units in the ring. In contrast to the carbon analogs, the organosilicon acetals do not react with pentaerythritol.

• OSTI ID: 6084874
• Journal Information: J. Appl. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Appl. Chem. USSR (Engl. Transl.); (United States) Vol. 61:4; ISSN JAPUA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACETALS
ALCOHOLS
ALKANES
BORON COMPOUNDS
BORON FLUORIDES
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMATOGRAPHY
CYCLOALKANES
CYCLOHEXANE
DISTILLATION
ETHERS
FLUORIDES
FLUORINE COMPOUNDS
GLYCOLS
HALIDES
HALOGEN COMPOUNDS
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
KINETICS
MATERIALS TESTING
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SILICON COMPOUNDS
REACTION KINETICS
SEPARATION PROCESSES
SILANES
SILICON COMPOUNDS
TESTING