Three-Component Reaction Using the Bestmann-Ohira Reagent: A Regioselective Synthesis of Phosphonyl Pyrazole Rings
作者:Kishor Mohanan、Anthony R. Martin、Loic Toupet、Michael Smietana、Jean-Jacques Vasseur
DOI:10.1002/anie.200906781
日期:2010.4.19
to run: A new one‐pot multicomponent reaction involving the use of an aldehyde, a cyanoacid derivative, and the Bestmann–Ohirareagent (BOR) has been developed for the synthesis of substituted phosphonylpyrazoles. This process was also combined with a copper‐catalyzed azide–alkyne 1,3‐dipolar cycloaddition to generate five new bonds and two heterocyclic rings in a one‐pot fashion.