| 摘要 |
Multifunctional polymerizable vinyl cyclopropane derivatives, stereoisomers thereof, and mixtures of such stereoisomers, suitable for use in dental materials. The derivatives are of the following general formula (I) (see formula I) where R1, R2, R3, R4, X, Y and n independently of one another have the following meanings: R1 = H, substituted or unsubstituted C1 to C12 alkyl or substituted or unsubstituted C6 to C14 aryl; R2 = n-times substituted C1 to C20 alkylene which can be interrupted by O, S, N or NH, or n-times substituted C6 to C14 arylene; X = CO, CO-O, CO-S, CO-NR3, SO2 or is absent, where R3 = H, C1 to C6 alkyl or C6 to C14 aryl; Y = CO, CO-O, CO-S, CO-NR4 or SO2, whereR4 = H, C1 to C6 alkyl or C6 to C14 aryl; and n = 2 to 6.
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