Highly Regio- and <italic style="font-style: italic">trans</italic>-Selective Ring-opening Metathesis Polymerization of Chiral Aza-norbornene with a Simple Phenylimido-Tungsten Catalyst

Xun Ci; Jing Bai; Yu Wang; Wei You

doi:10.1007/s10118-026-3696-4

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Highly Regio- and trans-Selective Ring-opening Metathesis Polymerization of Chiral Aza-norbornene with a Simple Phenylimido-Tungsten Catalyst

RESEARCH ARTICLE | Updated：2026-06-24

- Highly Regio- and trans-Selective Ring-opening Metathesis Polymerization of Chiral Aza-norbornene with a Simple Phenylimido-Tungsten Catalyst
- Chinese Journal of Polymer Science Vol. 44, Pages: 1-8(2026)
- Affiliations：
  
  a.Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
  b.University of Chinese Academy of Sciences, Beijing 100049, China
- Author bio：
  
  weiyou@iccas.ac.cn (Y.W.)
  ywang507@iccas.ac.cn (W.Y.)
- Funds：
- DOI：10.1007/s10118-026-3696-4
  CLC：
- Received：27 February 2026，
  
  Accepted：02 April 2026，
  
  Online First：24 June 2026，
  
  Published：2026-05
- Accepted：
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Ci, X.; Bai, J.; Wang, Y.; You, W. Highly regio- and trans-selective ring-opening metathesis polymerization of chiral aza-norbornene with a simple phenylimido-tungsten catalyst. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3696-4

Xun Ci, Jing Bai, Yu Wang, et al. Highly Regio- and trans-Selective Ring-opening Metathesis Polymerization of Chiral Aza-norbornene with a Simple Phenylimido-Tungsten Catalyst[J/OL]. Chinese Journal of Polymer Science, 2026, 441-8. DOI: 10.1007/s10118-026-3696-4.
Ci, X.; Bai, J.; Wang, Y.; You, W. Highly regio- and trans-selective ring-opening metathesis polymerization of chiral aza-norbornene with a simple phenylimido-tungsten catalyst. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3696-4 DOI：

Xun Ci, Jing Bai, Yu Wang, et al. Highly Regio- and trans-Selective Ring-opening Metathesis Polymerization of Chiral Aza-norbornene with a Simple Phenylimido-Tungsten Catalyst[J/OL]. Chinese Journal of Polymer Science, 2026, 441-8. DOI: 10.1007/s10118-026-3696-4. DOI：

摘要

Abstract

Stereochemical control in ring-opening metathesis polymerization (ROMP) is essential for tailoring polymer properties. While several existing studies have achieved tunable regioselectivity with asymmetric monomers through catalyst design

yet achieving high

trans

-selectivity alongside defined regiochemistry remains challenging. Here we report the ROMP of a chiral aza-norbornene monomer derived from Vince lactam using a readily prepared phenylimido tungsten catalyst. The resulting polymer exhibited high head-to-head regioselectivity and high

trans

-selectivity

which stands in stark contrast to our previous work where Ru-based catalysts afforded predominantly

cis

-selective polymers from the same monomer. Moreover

together with our previously reported polymers

specific rotation measurements and circular dichroism spectra demonstrated that varied stereochemical configurations significantly influenced the optical activity and ch

iral expression of polymers derived from the same chiral monomer. This work provides a complementary approach to stereochemical control in ROMP

offering valuable insights for design and synthesis of structurally well-defined chiral polymers.

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⁰

Highly Regio- and trans-Selective Ring-opening Metathesis Polymerization of Chiral Aza-norbornene with a Simple Phenylimido-Tungsten Catalyst

DOI：10.1007/s10118-026-3696-4

摘要

Abstract

关键词

Keywords

references