Abstract:
Cyclocarbosiloxanes are a comparatively new class of heterocyclic silicon compounds 1,2 the cyclic skeleton of which consists of alternating siloxane and carbon groups. During the last decade, considerable advances have been made in the chemistry of cyclocarbosiloxanes. The present review considers the methods of preparative synthesis of cyclocarbosiloxanes and certain reactions leading to the formation of carbosiloxane rings (including reactions in complex polycondensation and polymerisation systems), their physical properties and structure, and also chemical properties. The latter have been divided into reactions involving the cleavage of the heterocyclic skeleton and the reactions of groups and atoms functioning as substituents in the carbosiloxane ring. The polymerisation of cyclocarbosiloxanes, thermal reactions in the gas phase, and dissociations on electron impact have been considered separately. The bibliography includes 135 references.