The present invention relates to binaphthyl compounds of the formula (I), which are suitable as monomers for preparing polycarbonate resins having beneficial optical properties and which can be used for producing optical lenses: Formula (I) where X is C2-C4-alkandiyl or C1-C4-alkandiyl-C(O)-, where C(O) is bound to the oxygen atom of the hydroxyl group and where C2-C4-alkandiyl or C1-C4-alkandiyl, respectively, are unsubstituted or carry a phenyl ring; R and R' are identical or different and selected from mono or polycyclic aryl having from 6 to 36 carbon atoms and mono- or polycyclic hetaryl having a total of 5 to 36 atoms, which are ring members, where 1, 2, 3 or 4 of these atoms are selected from nitrogen, sulfur and oxygen, while the remainder of these atoms are carbon atoms, where mono- or polycyclic aryl and mono- or polycyclic hetaryl are unsubstituted or carry 1 or 2 radicals Ra, which are selected from the group consisting of CN, CH3, OCH3, O-phenyl, O-naphthyl, S-phenyl, S-naphthyl, CI or F; and, if X is C1-C4-alkandiyl-C(O)-, the esters thereof, in particular the C1-C4-aIkyIesters thereof.
本发明涉及通式(I)的双
萘基化合物,其适于作为单体用于制备具有有益光学性能的聚
碳酸酯
树脂,并可用于生产光学透镜:式(I)中,X为C2-C4-亚烷基或C1-C4-亚烷基-C(O)-,其中C(O)键合于羟基的氧原子上,且所述C2-C4-亚烷基或C1-C4-亚烷基分别为未取代的或带有苯环;R和R'相同或不同,选自具有6至36个碳原子的单环或多环芳基以及具有总共5至36个原子的单环或多环杂芳基,这些原子为环成员,其中1、2、3或4个原子选自氮、
硫和氧,其余原子为碳原子,其中单环或多环芳基和单环或多环杂芳基为未取代的或带有1或2个选自CN、
CH3、O 、O-苯基、O-
萘基、S-苯基、S-
萘基、Cl或F的基团Ra;并且,如果X为C1-C4-亚烷基-C(O)-,则为其酯,特别是其C1-C4-烷基酯。