Enantioselective Polymerization of 1,2‐Diisocyanoarenes—Synthesis of Optically Active, Helical Poly(quinoxaline‐2,3‐diyl)s

The helical pentamer 1, active in polymerizations, was obtained from the appropriate 1,2-dgaiisocyanoarene and the chiral Pd complex trans-[PdBr(CH3)L]. With diastereomerically pure 1 as the polymerization initiator helical polyquinoxalinediyls can be prepared enantioselectively from 1,2-diisocyanoarene. L* = PPh[(S)-2-methylbutyl]2.