Intramolecular Azide−Alkyne Cycloaddition for the Fast Assembly of Structurally Diverse, Tricyclic 1,2,3-Triazoles
摘要:
The synthesis of novel tricyclic 1,2,3-triazoles starting from cyclic epoxides via the sequential azidolysis, propargylation and 1,3-dipolar cycloaddition is described. Derivatization by N-arylation reaction and the synthesis of enantiomerically pure compounds is also reported. Some of these compounds exhibit significant affinity for the sigma-1 receptor.
Highly Enantioselective Ring Opening of Epoxides Catalyzed by (salen)Cr(III) Complexes
作者:Luis E. Martinez、James L. Leighton、Douglas H. Carsten、Eric N. Jacobsen
DOI:10.1021/ja00126a048
日期:1995.5
Asymmetric Ring Opening of Meso Epoxides with TMSCN Catalyzed by (pybox)lanthanide Complexes
作者:Scott E. Schaus、Eric N. Jacobsen
DOI:10.1021/ol005721h
日期:2000.4.1
[GRAPHICS]The asymmetric ring opening of meso epoxides with TMSCN is catalyzed by (pybox)YbCl3 complexes, yielding the beta-trimethylsilyloxy nitrile ring-opened products with good enantioselectivities (83-92% ee). The reaction exhibits a second-order kinetic dependence on catalyst concentration and a first-order dependence on epoxide concentration, consistent with a bimetallic pathway involving simulataneous activation of epoxide and cyanide.
Practical Synthesis of Enantiopure Cyclic 1,2-Amino Alcohols via Catalytic Asymmetric Ring Opening of Meso Epoxides
作者:Scott E. Schaus、Jay F. Larrow、Eric N. Jacobsen
DOI:10.1021/jo970146p
日期:1997.6.13
US7220870B2
申请人:——
公开号:US7220870B2
公开(公告)日:2007-05-22
Intramolecular Azide−Alkyne Cycloaddition for the Fast Assembly of Structurally Diverse, Tricyclic 1,2,3-Triazoles
作者:Ana I. Oliva、Ute Christmann、Daniel Font、Félix Cuevas、Pablo Ballester、Helmut Buschmann、Antoni Torrens、Susana Yenes、Miquel A. Pericàs
DOI:10.1021/ol800291t
日期:2008.4.1
The synthesis of novel tricyclic 1,2,3-triazoles starting from cyclic epoxides via the sequential azidolysis, propargylation and 1,3-dipolar cycloaddition is described. Derivatization by N-arylation reaction and the synthesis of enantiomerically pure compounds is also reported. Some of these compounds exhibit significant affinity for the sigma-1 receptor.