摘要:
The present invention relates to oligomeric binaphtyl compounds of the formula (I) that are suitable as monomers for preparing thermoplastic resins, such as polycarbonate resins, which have beneficial optical and mechanical properties and can be used for producing optical devices. where X1and X2are independently selected from hydrogen, -Alk1-OH, -CH2-A2-CH2-OH, -Alk2-C(O)ORx, -CH2-A2-C(O)ORxand -C(O)-A2-C(O)ORx, where Rxis selected from the group consisting of hydrogen, phenyl, benzyl and C1-C4-alkyl; Y1and Y2are independently selected from -CH2-, -CHArY- and -CH(CH2ArY)-; A1is e. g. a single bond, -CH2-, -CHArA-, -CH(CH2ArA)-, -C(CH2ArA)2-, a moiety of the formula (A), mono- or polycyclic arylene having from 6 to 26 carbon atoms as ring members or mono- or polycyclic hetarylene having a total of 5 to 26 atoms, which are ring members, alternatively, the moiety -Y1-A1-Y2- in formula (I) may be -CH2- or -CHArY-, n is 1, 2 or 3; m, p, q and r are independently 0,1 or 2; R1, R2, R3and R4are independently selected from the group consisting of halogen, C2- C3-alkynyl, CN, R, OR, CH8R'3-8, NR2, C(O)R and CH=CHR", it being possible that R1, R2, R3or R4is identical or different if more than 1 of R1, R2, R3or R4is present, where s on each occurrence is 0,1 or 2.