Phase-Transfer and Ion-Pairing Catalysis of Pentanidiums and Bisguanidiniums,Accounts of Chemical Research

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Phase-Transfer and Ion-Pairing Catalysis of Pentanidiums and Bisguanidiniums
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2017-04-05 00:00:00 , DOI: 10.1021/acs.accounts.6b00604
Lili Zong ₁ , Choon-Hong Tan ₁

Affiliation

Catalysts accelerate biological processes and organic reactions in a controlled and selective fashion. There are continuing efforts in asymmetric catalysis to develop efficient catalysts with broad reaction scope and industrial practicability. Among the various modes of asymmetric catalysis, phase-transfer catalysis has attracted intense interest due to its facile scale up and low catalyst loading. Chiral quaternary ammonium and phosphonium salts are well-studied classes of chiral phase-transfer catalysts, and they are typically composed of sp³-hybridized quaternary onium salts. In this Account, we describe our recent attempts to develop N-sp²-hybridized guanidinium-type salts as efficient phase-transfer catalysts as well as ion-pair catalysis based on N-sp² hybridized bisguanidinium-type salts.

中文翻译：

戊鎓和双胍鎓的相转移和离子对催化

催化剂以受控和选择性的方式加速了生物过程和有机反应。在不对称催化方面继续努力以开发具有宽反应范围和工业实用性的有效催化剂。在不对称催化的各种模式中，由于相转移催化的容易规模化和低催化剂装载量，引起了人们的极大兴趣。手性季铵盐和phospho盐是经过充分研究的手性相转移催化剂，通常由sp ^3-杂化的季鎓盐组成。在此报告中，我们描述了我们最近开发的N -sp ^2-杂交胍盐型盐作为有效的相转移催化剂以及基于此的离子对催化的尝试。N -sp ²杂交的双胍盐型盐。

更新日期：2017-04-05

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