Some dichloro compounds derived from OCTAPHENYLCYCLOTETRASILANE (cas 1065-95-8) and decaphenylcyclopentasilane

Add time:07/24/2019    Source:sciencedirect.com

A study of the preparation of α,ω-dichloropolydiphenylsilanes from OCTAPHENYLCYCLOTETRASILANE (cas 1065-95-8) (I) and decaphenylcyclopentasilane (II) with chlorinating reagents such as 1,1,2,2-tetrachloroethane, phosphorus pentachloride and chlorine is discussed. The study has led to the preparation of compounds of the general formula Cl(SiPh2)nCl, where n equals 2 to 5. The conditions for the addition of chlorine to (I) and (II) with or without silicon-silicon cleavage of the polysilane after initial ring-opening are described. Some derivatives are described, and infrared absorptions are presented.

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