Highly Efficient Proline Ester-based Nickel Catalysts for Michael Addition of Thiophenols to α,β-Enones
作者:Way-Zen Lee、Chien-Wei Chiang、Girish M. Kulkarni、Ting-Shen Kuo
DOI:10.1002/jccs.201200386
日期:2013.3
Two N3O2 pentadentate ligands, BMPP and BPPP, were prepared for synthesizing highlyefficient nickel catalysts, [Ni(BMPP)(CH3CN)](ClO4)2 (1) and [Ni(BPPP)(CH3CN)](BPh4)(ClO4) (2), for thia‐Michaeladdition of thiophenols to α,β‐enones. X‐ray structures of 1 and 2 revealed that a labile CH3CN molecule was bound to the nickel center of the catalysts. ESI‐MS spectroscopy indicated that thiolate replaced
A Bioinspired Zn<sup>II</sup>/Fe<sup>III</sup> Heterobimetallic Catalyst for Thia-Michael Addition
作者:Way-Zen Lee、Tzu-Li Wang、Hao-Ching Chang、Yi-Ting Chen、Ting-Shen Kuo
DOI:10.1021/om300275a
日期:2012.6.11
A novel tetranuclear Zn-II/Fe-III heterobimetallic complex was synthesized, and the complex can efficiently catalyze the Michael addition of thiophenols to alpha,beta-unsaturated enones, even for tertiary carbon sulfur bond formation.