Ultrasound-promoted organocatalytic enamine–azide [3 + 2] cycloaddition reactions for the synthesis of ((arylselanyl)phenyl-1<i>H</i>-1,2,3-triazol-4-yl)ketones
作者:Gabriel P Costa、Natália Seus、Juliano A Roehrs、Raquel G Jacob、Ricardo F Schumacher、Thiago Barcellos、Rafael Luque、Diego Alves
DOI:10.3762/bjoc.13.68
日期:——
The use of sonochemistry is described in the organocatalytic enamine-azide [3 + 2] cycloadditionbetween 1,3-diketones and aryl azidophenyl selenides. These sonochemically promoted reactions were found to be amenable to a range of 1,3-diketones or aryl azidophenyl selenides, providing an efficient access to new ((arylselanyl)phenyl-1H-1,2,3-triazol-4-yl)ketones in good to excellent yields and short
Organocatalytic Synthesis of (Arylselanyl)phenyl-1<i>H</i>-1,2,3-triazole-4-carboxamides by Cycloaddition between Azidophenyl Arylselenides and β-Oxo-amides
作者:Natália Seus、Bruna Goldani、Eder J. Lenardão、Lucielli Savegnago、Márcio W. Paixão、Diego Alves
DOI:10.1002/ejoc.201301547
日期:2014.2
We describe the use of β-oxo-amides in organocatalyticcycloaddition with aryl azidophenyl selenides. The cycloaddition reactions were performed under mild conditions, with β-oxo-amides and aryl azidophenyl selenides in the presence of a catalytic amount of Et2NH (5 mol-%), and the corresponding products were obtained in good to excellent yields. This organocatalytic methodology tolerated a range of
Sonochemistry in organocatalytic enamine-azide [3+2] cycloadditions: A rapid alternative for the synthesis of 1,2,3-triazoyl carboxamides
作者:Daiane M. Xavier、Bruna S. Goldani、Natália Seus、Raquel G. Jacob、Thiago Barcellos、Márcio W. Paixão、Rafael Luque、Diego Alves
DOI:10.1016/j.ultsonch.2016.05.007
日期:2017.1
We described herein the use of sonochemistry in the organocatalytic enamine-azide [3+2] cycloadditions of β-oxo-amides with a range of substituted arylazides. These sonochemical promoted reactions were found to be amenable to a range of β-oxo amides or arylazides, providing an efficient access to new N-aryl-1,2,3-triazoyl carboxamides in good to excellent yields and short times of reaction.