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- W2023802653 abstract "A long-distance chirality transfer was observed in the Ni(II)-catalysed polymerization of 5,6,9,10-tetrahydro[5]helicene- and [5]helicene-based iso-cyanides bearing a remote chiral group. Polymerizations of N-[(S)-(-)-α-methyl-benzyl]-3-isocyanido-5,6,9,10-tetrahydro[5]helicene-7,8-dicarboxylic imide and N-[(S)-(-)-α-methylbenzyl]-3-isocyanido-[5]helicene-7,8-dicarboxylic imide, which are laevorotatory, afforded optically active polyisocyanides having dextro-rotations at 589nm and circular dichroism exciton couplets in the UV/vis. region. The chirality transfer from the remote stereogenic centre to the reactive isocyanido group was responsible for the helix-sense-selective polymerization. ©1997 SCI" @default.
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- W2023802653 date "1997-09-01" @default.
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- W2023802653 title "Long-distance chirality transfer in polymerization of isocyanides bearing a remote chiral group" @default.
- W2023802653 doi "https://doi.org/10.1002/(sici)1097-0126(199709)44:1<83::aid-pi820>3.0.co;2-t" @default.
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