Silicone compounds and process for producing the same

A process for preparing silicone compounds in which Si—O— at the end of the molecular chain of silanol-free cage and/or ladder polyphenylsilsesquioxanes represented by formula (1):

• wherein n is an integer from 2 to 5000,
• is linked to at least one triorganosilyl group containing reactive functional group X represented by formula (2):
• wherein
• X is selected from the group consisting of
• (A) CH2═CH—,
• (B) CH2═C(R4)—COO—R3—,
• (C)
• —CH2—O—R3—,
• (D) H2N—R3—,
• (E) HO—R3—, and
• (F) HS—R3—,
• R3 is an alkylene group containing 1 to 3 carbon atoms, and
• R4 is a hydrogen atom or a methyl group,
• said process comprising:
• subjecting cage-terminated and silanol-free cage and/or ladder polyphenylsilsesquioxanes to an equilibrium reaction under heat with a disiloxane containing reactive functional groups represented by formula (3):
• wherein X is the same as defined above, in an organic solvent in the presence of an alkaline rearrangement and condensation catalyst.