Structure and reactivity of [(L.Pd)n.(1,5-cyclooctadiene)] (n=1-2) complexes bearing biaryl phosphine ligands
Structure and reactivity of [(L.Pd)n.(1,5-cyclooctadiene)] (n=1-2) complexes bearing biaryl phosphine ligands
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DOI：
10.1016/j.ica.2014.06.008
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发表时间：
2014-10-01
影响因子：
2.8
通讯作者：
Buchwald, Stephen L.
中科院分区：
文献类型：
--
作者：
Lee, Hong Geun;Milner, Phillip J.;Buchwald, Stephen L.
用固体核磁共振和X射线晶体衍射法研究了Pd（0）催化芳基三氟甲磺酸酯缩合反应的稳定预催化剂[（1，5-环辛烯）（L.Pd）（2）] = AdBrettPhos）的结构.该复合物与CDCl 3形成脱芳构化复合物的反应性也被提出。此外，研究表明相关的大体积联芳基膦配体形成类似的络合物，尽管较小的配体BrettPhos形成单体[（1，5-环辛烯）（L.Pd）]物质。(C)2014 Elsevier By. All rights reserved.
The structure of the stable Pd(0) precatalyst [(1,5-cyclooctadiene)(L.Pd)(2)] = AdBrettPhos) for the Pd-catalyzed fluorination of aryl triflates has been further studied by solid state NMR and X-ray cystrallography of the analogous N-phenylmaleimide complex. The reactivity of this complex with CDCl3 to form a dearomatized complex is also presented. In addition, studies suggest that related bulky biaryl phosphine ligands form similar complexes, although the smaller ligand BrettPhos forms a monomeric [(1,5-cyclooctadiene)(L.Pd)] species instead. (C) 2014 Elsevier By. All rights reserved.