Synthesis of 2-Thio- and 2-Oxoimidazoles via Cascade Addition−Cycloisomerization Reactions of Propargylcyanamides
摘要:
A methodology to generate 2-thio- and 2-oxoimidazoles through an addition-cyclization-isomerization reaction of propargylcyanamides with thiol and alcohol nucleophiles is described. In general, the reaction sequence allows for the rapid formation of highly substituted 2-thio- and 2-oxoimidazoles in good to excellent yields.
Synthesis of 2-Thio- and 2-Oxoimidazoles via Cascade Addition−Cycloisomerization Reactions of Propargylcyanamides
作者:Robert L. Giles、Richard A. Nkansah、Ryan E. Looper
DOI:10.1021/jo902326d
日期:2010.1.1
A methodology to generate 2-thio- and 2-oxoimidazoles through an addition-cyclization-isomerization reaction of propargylcyanamides with thiol and alcohol nucleophiles is described. In general, the reaction sequence allows for the rapid formation of highly substituted 2-thio- and 2-oxoimidazoles in good to excellent yields.