具有横向芳香基团和严格控制的链构象的聚合物和低聚物

Journal of The Chemical Society, Chemical Communications Pub Date : 1998-01-01 DOI:10.1039/A707389E

R. Alder, K. R. Anderson, P. Benjes, C. Butts, P. Koutentis, A. Orpen

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引用次数: 12

摘要

以氟烯基阴离子为引发剂的螺旋[环丙烷-1,9 ' -芴]阴离子开环聚合得到的聚合物链基本上是全反的，并且具有横向取向的氟烯基，中间链亚甲基和1,8-氟烯基质子的强前移表明;还报道了一些特定低聚物的合成路线。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Polymers and oligomers with transverse aromatic groups and tightly controlled chain conformations

Anionic ring-opening polymerisation of spiro[cyclopropane-1,9′-fluorene] with fluorenyl anion as initiator yields polymers 1 with chains which are essentially all-anti and have transversely-oriented fluorenyl groups, as shown by strong upfield shifts for the mid-chain methylene and 1,8-fluorenyl protons; synthetic routes to some specific oligomers are also reported.

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