REACTIONS OF ALPHA-ELIMINATION OF SILANONES AS A PATH FOR FORMATION AND DESTRUCTION OF SILOXANE STRUCTURES

Based on modem stereoelectronic concepts, our results, and published d ata, we explained the paths of formation and destruction of linear and cyclic oligo- and polysiloxanes via intramolecular geminal decomposit ion of SI(QR)X groups, which results in the intermediate formation of short-lived silanones R2Si=O. The latter are subsequently oligomerized , polymerized, or inserted into the Si-X bonds (X = O, Cl, etc.) of th e trapping agents.