Abstract
Aliphatic polyethers are one of the most widely used polymers, whose synthesis is
largely dependent on metallic compounds. Recent development of organocatalysts may
break the limits of this long-standing field and infuse vitality into polyether production.
In this Synpacts article, the recent advances of organocatalysts for polyether production
is introduced in aspects of catalytic performance and mechanism. Moreover, attentions
are paid to the latest contributions of bifunctional organoboron catalysts which can
be prepared with high yields from cost-effective raw materials in two facile reactions
and show excellent performance in the polyether production with remarkable catalytic
efficiency, controllability on molecular weight, and explicit polymerization mechanism.
Based on these advances, it is envisioned that new discoveries using organocatalysts
will continue in the foreseeable future.
1 Introduction
2 Challenges in Metallic Catalysts
3 Previous Advances in Organocatalysts
4 Recent Contributions of Bifunctional Organoboron Catalysts
5 Conclusion
Key words
organocatalysts - polyethers - ring-opening polymerization - epoxides - organoboron
- mechanism