Method for the preparation of pentamethylcyclotrisiloxane

Details Method for the preparation of pentamethylcyclotrisiloxane Method for the preparation of pentamethylcyclotrisiloxane

1984-11-16

1985-09-03

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

556460, C07F 708

Patent

active

045394180

ABSTRACT:
A very efficient method is proposed for the synthetic preparation of pentamethylcyclotrisiloxane by the ring-closing reaction between 1,1,3,3-tetramethyl-1,3-dihydroxy disiloxane and a methyl dialkenyloxysilane such as methyl diisopropenyloxysilane at a moderate temperature in a solution with an organic solvent.

REFERENCES:
patent: 2595891 (1952-05-01), Sauer
patent: 3234180 (1966-02-01), Wu
patent: 3317578 (1967-05-01), Prescott et al.
patent: 3576023 (1971-04-01), Curry
patent: 3714213 (1973-01-01), Miller et al.
patent: 4412080 (1983-10-01), Williams

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