Silicone compound and a use thereof

摘要

One of the purposes of the present invention is to provide a silicone compound which has a specific number of silicon atoms, is well compatible with (meth)acryl monomers, is suitable as an ophthalmic monomer and provides a polymer having excellent durability of mechanical strength in a buffered phosphate solution. Another purpose of the present invention is to provide a silicone compound which functions well as a crosslinking agent for a polymerizable monomer. Further, another purpose is to provide a method for preparing the silicone compound, in particular the silicone compound having one specific structure at a high ratio. In the first aspect, the present invention provides a compound represented by the following formula (1-1):;
and a method for preparing the silicone compound. In the second aspect, the present invention provides a compound represented by the following formula (2-1):
;
and a method for preparing the silicone compound.

主权项

1. A compound represented by the following formula (1-1): wherein m is 3, n is 1 or 2, R1 is an alkyl group having 1 to 4 carbon atoms, and R2 and R6 are, independently of each other, a hydrogen atom or a methyl group, and wherein an amount of one kind of compound having each one value of m, n, R1, R2 and R6 in the formula (1-1) is more than 95 mass % of a total mass of the compound.