Ruthenium-Catalyzed Azide−Alkyne Cycloaddition: Scope and Mechanism
作者:Brant C. Boren、Sridhar Narayan、Lars K. Rasmussen、Li Zhang、Haitao Zhao、Zhenyang Lin、Guochen Jia、Valery V. Fokin
DOI:10.1021/ja0749993
日期:2008.7.1
catalytic activity of a series of ruthenium(II) complexes in azide-alkyne cycloadditions has been evaluated. The [Cp*RuCl] complexes, such as Cp*RuCl(PPh 3) 2, Cp*RuCl(COD), and Cp*RuCl(NBD), were among the most effective catalysts. In the presence of catalytic Cp*RuCl(PPh 3) 2 or Cp*RuCl(COD), primary and secondary azides react with a broad range of terminal alkynes containing a range of functionalities
3′-(1,2,3-Triazol-1-yl)-2′,3′-dideoxythymidine and 3′-(1,2,3-triazol-1-yl)-2′,3′-dideoxyuridine
作者:Piet Wigerinck、Arthur Van Aerschot、Paul Claes、Jan Balzarini、Erik De Clercq、Piet Herdewijn
DOI:10.1002/jhet.5570260624
日期:——
Cycloaddition of different acetylenic compounds on the azido function of 3′-azido-2′,3′-dideoxythymidine and 3′-azido-2′,3′-dideoxyuridine afforded products with a 1,2,3-triazol-1-yl substituent in the 3′-position. In contrast with the parent compounds, these triazolyl derivatives had no appreciable activity against human immunodeficiency virus (HIV-1).