Azetidines as ligands in the Pd(II) complexes series
摘要:
The preparation of palladium (II) complexes having sterically congested azetidines as ligands is described. Diastereomerically pure alpha-alkylamino and alpha-alkylimino azetidines react with Na2PdCl4 to afford the corresponding bidendate Pd(II) complexes, whereas 2-cyano azetidines can be used to access bidendate Pd(11) complexes containing an amino-imidate moiety. Preliminary study of the catalytic activity of these new complexes in the Suzuki cross-coupling reaction is presented. (c) 2005 Elsevier B.V. All rights reserved.
Substrate Profiling of the Cobalt Nitrile Hydratase from Rhodococcus rhodochrous ATCC BAA 870
作者:Adelaide R. Mashweu、Varsha P. Chhiba-Govindjee、Moira L. Bode、Dean Brady
DOI:10.3390/molecules25010238
日期:——
cross-coupling reactions and imidazo[1,2-a]pyridines prepared by the Groebke–Blackburn–Bienaymé multicomponent reaction. The enzyme active site was moderately accommodating, accepting almost all of the small aromatic nitriles, the diarylpyridines and most of the bi-aryl compounds and Morita–Baylis–Hillman products but not the Groebke–Blackburn–Bienaymé products. Nitrile conversion was influenced by steric
An efficient strategy for the nickel-catalysed synthesis of biaryls and terphenyls has been developed in environmentally-friendly reaction media. In the presence of β-diketone and PPh3 ligands, Ni(TFA)2 acted as an effective catalyst for the Suzuki–Miyaura cross-coupling of aryl halides and arylboronic acids in an ionic liquid solution. Biaryls and terphenyls were obtained in good yields under this
The preparation of palladium (II) complexes having sterically congested azetidines as ligands is described. Diastereomerically pure alpha-alkylamino and alpha-alkylimino azetidines react with Na2PdCl4 to afford the corresponding bidendate Pd(II) complexes, whereas 2-cyano azetidines can be used to access bidendate Pd(11) complexes containing an amino-imidate moiety. Preliminary study of the catalytic activity of these new complexes in the Suzuki cross-coupling reaction is presented. (c) 2005 Elsevier B.V. All rights reserved.