synthesis of 1,3,5-tri-substituted pyrazoles promoted by p2o5.sio2
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abstract
silica supported phosphorus pentoxide (p2o5·sio2) is an efficient catalyst for synthesis of 1,3,5-substituted pyrazoles via the condensation of 1,3-diketones and hydrazines. simplicity of procedure, mild condition, being solvent-free, high yields, and easy workup are some advantages of this protocol.
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Silica supported phosphorus pentoxide (P2O5·SiO2) is an efficient catalyst for synthesis of 1,3,5-substituted pyrazoles via the condensation of 1,3-diketones and hydrazines. Simplicity of procedure, mild condition, being solvent-free, high yields, and easy workup are some advantages of this protocol.
full textSynthesis of 1,3,5-tri-substituted pyrazoles promoted by P2O5.SiO2
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Journal title:
iranian journal of catalysisPublisher: islamic azad university, shahreza branch
ISSN 2252-0236
volume 2
issue 2 2012
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