62346-44-5Relevant academic research and scientific papers
HEXAMETHYLSILIRANE. I. PREPARATION, CHARACTERIZATION AND THERMAL DECOMPOSITION
Seyferth, Dietmar,Annarelli, Dennis C.,Vick, Steven C.,Duncan, Don P.
, p. 179 - 195 (2007/10/02)
Hexamethylsilirane has been prepared by the action of magnesium on dimethyl-bis(α-bromoisopropyl)silane in tetrahydrofuran (THF) solution.It was found to be highly reactive toward atmospheric oxygen and moisture and to decompose when heated in solution at 60-75 deg C.Its decomposition results in the extrusion of dimethylsilylene which may add to the tetramethylethylene produced in the decomposition to regenerate the silirane, insert into the reactive SiC2 ring of the silirane to give octamethyl-1,2-disilacyclobutane or oligomerize to give (Me2Si)n oils.Dimethyldiisopropyl-, tetraisopropyl- and tert-butyltriisopropylsilane were prepared by catalytic hydrogenation of the corresponding isopropenylsilanes.Bromination of dimethyldiisopropylsilane at 65 deg C resulted in exclusive formation of dimethyl-bis(α-bromoisopropyl)silane.
REACTION OF DIMETHYLSILYLENE WITH CYCLOOCTENE OXIDE
Goure, William F.,Barton, Thomas J.
, p. 33 - 42 (2007/10/02)
The deoxygenation of cyclooctene oxide with both thermally and photochemically generated dimethylsilylene is described.Four mechanistic possibilities are considered; two involving initial silaoxetane formation, and two involving ylide formation.It is concluded that ylide formation must be favored.However, whether this ylide actually extrudes dimethylsilanone (Me2Si=O), or simply acts as a "silanone transfer agent" cannot be conclusively determined from the data.
