ESI-MS spectral methods. Further, structures of two of the complexes have been determined by single crystal X-ray diffraction technique which revealed a pseudo octahedral geometry with the coordination of the quinoline nitrogen and quinoline oxygen atoms of the ligand. All the newcomplexes have been employed as efficient catalysts in N-alkylation reactions for the synthesis of tertiary amines by the coupling
一系列新的通式为[RuH(CO)(EPh 3)2 L](1-6)的8-羟基喹啉-2-羧醛的Ru(II)配合物(E = P或As,L = N '-(((8-羟基喹啉-2-基)亚甲基)噻吩-2-碳酰肼(HQ-THy),N'-(((8-羟基喹啉-2-基)亚甲基)异烟酰肼(HQ-IHy),N'-已经合成了((8-羟基喹啉-2-基)亚甲基)苯甲酰肼(HQ-BHy)。它们已通过元素分析,IR,NMR(1 H,13 C和31P)和ESI-MS光谱方法。此外,已经通过单晶X射线衍射技术确定了两种配合物的结构,该技术揭示了配体的喹啉氮和喹啉氧原子配位的伪八面体几何形状。通过将仲胺与芳族伯醇在低催化剂负载下以最大收率偶联,所有新的络合物已被用作N-烷基化反应中合成叔胺的有效催化剂。另外,已经充分研究了取代基对配体,不同溶剂以及碱和催化剂负载量对配合物催化活性的影响。综合大楼1业已发现,AlO3是醇与胺的N-烷
N-Alkylation and N,C-Dialkylation of Amines with Alcohols in the Presence of Ruthenium Catalysts with Chelating N-Heterocyclic Carbene Ligands
A series of new benzimidazolium salts and ruthenium(II) complexes containing chelating N-heterocyclic carbenes (NHCs) functionalized with a benzylic group and an acetal group were prepared. All of the synthesized compounds were characterized by elemental analysis and NMR spectroscopy, and the molecular structures of 2c and 2d were determined by X-ray crystallography. All of the,complexes were tested in the alkylation of cyclic amine derivatives with alcohols and showed excellent activity in this reaction. Cyclic amines were alkylated with primary and heteroaromatic alcohols. The Ru-NHC Complexes also catalyzed N,C3-dialkylation of cyclic amines.
Ley, Steven V.; Bolli, Martin H.; Hinzen, Berthold, Journal of the Chemical Society. Perkin transactions I, 1998, # 15, p. 2239 - 2241
作者:Ley, Steven V.、Bolli, Martin H.、Hinzen, Berthold、Gervois, Anne-Geraldine、Hall, Beverley J.
DOI:——
日期:——
Boehme,H.; Mueller,A., Archiv der Pharmazie und Berichte der Deutschen Pharmazeutischen Gesellschaft, 1963, vol. 296, p. 65 - 67
作者:Boehme,H.、Mueller,A.
DOI:——
日期:——
HEANEY, HARRY;PAPAGEORGIOU, GEORGE;WILKINS, ROBERT F., TETRAHEDRON LETT., 29,(1988) N 19, 2377-2380
作者:HEANEY, HARRY、PAPAGEORGIOU, GEORGE、WILKINS, ROBERT F.