Nickel Complexes Bearing N,N,O-Tridentate Salicylaldiminato Ligand: Efficient Catalysts for Imines Formation via Dehydrogenative Coupling of Primary Alcohols with Amines
作者:Xiaoying Zhang、Junhua Zhang、Zhiqiang Hao、Zhangang Han、Jin Lin、Guo-Liang Lu
DOI:10.1021/acs.organomet.1c00552
日期:2021.11.22
characterized by high-resolution mass spectrometry, infrared spectroscopy, elemental analysis, and X-ray diffraction analysis. All the three Ni(II) complexes exhibited efficient activity and good selectivity in the acceptorless dehydrogenative coupling of alcohols and amines to produce imines and diimines. The present protocol provides an atom-economical and sustainable route for the synthesis of various imine
水杨醛配体的治疗L1H - L2H(L1H = 2,4-二-叔丁基-6 - ((喹啉-8-基亚氨基)甲基)苯酚; L2H = 2,4-二-叔丁基-6 - (( (2-(二乙氨基)乙基)亚氨基)甲基)苯酚)与Ni(OAc) 2 ·4H 2 O在乙醇回流中得到镍配合物[( L1 )Ni(OAc)]( 1 )和[( L2 )Ni(OAc) )] ( 2 ) 分别。的反应L3H(L3H =(2,4-二-叔丁基-6 - (((2-(吡啶-2-基)乙基)亚氨基)甲基)苯酚)),与镍(OAC)2 ·4H 2在过量三乙胺存在下,O 得到双配体配位的镍配合物 [( L2 ) 2 Ni] ( 3 )。配合物1 - 3分别充分表征通过高分辨率质谱法,红外光谱,元素分析,X-射线衍射分析。所有三种 Ni(II) 配合物在醇和胺的无受体脱氢偶联生成亚胺和二亚胺方面均表现出有效的活性和良好的选择性。本协议通过使用地球