Synthesis of β-hydroxyacetamides from unactivated ethyl acetates under base-free conditions and microwave irradiation
作者:Eugenio Hernández-Fernández、Pedro Pablo Sánchez-Lara、Mario Ordóñez、Oscar Abelardo Ramírez-Marroquín、Francisco G. Avalos-Alanís、Susana López-Cortina、Víctor M. Jiménez-Pérez、Tannya Rocio Ibarra-Rivera
DOI:10.1016/j.tetasy.2014.11.015
日期:2015.1
unactivated ethyl esters with achiral and chiral 1,2-amino alcohols under microwave irradiation and base-free conditions is described. This procedure provides a convenient method for the synthesis of β-hydroxyacetamides bearing pyrazole, imidazole, and benzimidazole groups in high yields and without racemization. The protocol described herein is environmentally friendly and allows for the preparation of a
Tridentate, anionic tethered N-heterocyclic carbene of Pd(II) complexes
作者:Satoshi Sakaguchi、Miaki Kawakami、Justin O’Neill、Kyung Soo Yoo、Kyung Woon Jung
DOI:10.1016/j.jorganchem.2009.10.011
日期:2010.1
The synthesis of a series of azolium salts such as azolium iodides and chlorides having both N-anionic functional group and N-alkyl group have been developed. Reaction of azolium iodides or chlorides with Ag2O gave the corresponding NHC–Ag complexes. It was found that the resulting NHC–Ag complexes derived from azolium iodides or chlorides differ in their physical properties. The azolium chlorides