The synthesis and characterization of 1-formyl-2-acylcyclopentadienylthallium compounds
摘要:
The reaction of sodium cyclopentadienide with RCOOEt (R = Me, Ph, 2-thienyl, or OEt) or Bu'COCl followed by Vilsmeier reagent in the presence of excess sodium methoxide produces the 2-substituted-6-dimethylaminofulvenes la-C in modest yields. Basic hydrolysis results in the formation of 2-substituted-6-hydroxyfulvenes 2a-e in very good yields, Subsequent deprotonation with TlOEt yields the 1-formyl-2-acyl or carboethoxy cyclopentadienylthallium compounds 3a-e. (C) 2002 Elsevier Science B.V. All rights reserved.
The synthesis and characterization of 1-formyl-2-acylcyclopentadienylthallium compounds
摘要:
The reaction of sodium cyclopentadienide with RCOOEt (R = Me, Ph, 2-thienyl, or OEt) or Bu'COCl followed by Vilsmeier reagent in the presence of excess sodium methoxide produces the 2-substituted-6-dimethylaminofulvenes la-C in modest yields. Basic hydrolysis results in the formation of 2-substituted-6-hydroxyfulvenes 2a-e in very good yields, Subsequent deprotonation with TlOEt yields the 1-formyl-2-acyl or carboethoxy cyclopentadienylthallium compounds 3a-e. (C) 2002 Elsevier Science B.V. All rights reserved.
Rhodium and iridium complexes of a new ferrocene-derived chelating bis(NHC) ligand
作者:Dmitriy M. Panov、Pavel V. Petrovskii、Mariam G. Ezernitskaya、Alexander F. Smol'yakov、Fedor M. Dolgushin、Avthandil A. Koridze
DOI:10.1039/c2dt30898c
日期:——
Rhodium and iridium complexes of a new ferrocene-derived bis(N-heterocyclic carbene) ligand, [M(cod)1,2-(MeNCHCHNCCH2)2C5H3}Fe(C5H5)]BF4 (M = Rh, 8a; M = Ir, 8b; cod = 1,5-cyclooctadiene), were synthesized from the corresponding bis(imidazolium) salt 6. The molecular structure of 8a was determined by single-crystal X-ray diffraction. Complexes 8a and 8b smoothly react with CO with displacement of
新的二茂铁衍生的双(N-杂环卡宾)配体[M(cod)1,2-(MeNCHCHNCCH 2)2 C 5 H 3 } Fe(C 5 H 5)] BF 4( M = Rh,8a; M = Ir,8b; cod =1,5-环辛二烯),是由相应的双(咪唑)盐6合成。通过单晶X射线衍射确定8a的分子结构。配合物8a和8b与CO平稳地反应,置换了螯合的鳕鱼配体,得到了相应的二羰基衍生物9a和9b。