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Long-distance chirality transfer in polymerization of isocyanides bearing a remote chiral group

✍ Scribed by Chen, Jian Ping; Gao, Jian Ping; Wang, Zhi Yuan

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
245 KB
Volume
44
Category
Article
ISSN
0959-8103

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✦ Synopsis

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 isocyanides bearing a remote chiral group.

imide, which are laevorotatory, a †orded optically active polyisocyanides having dextrorotations at 589 nm 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.

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