166820-34-4Relevant academic research and scientific papers
Novel 5-substituted 1-pyrazolol analogues of ibotenic acid: Synthesis and pharmacology at glutamate receptors
Jorgensen, Charlotte G.,Braeuner-Osborne, Hans,Nielsen, Birgitte,Kehler, Jan,Clausen, Rasmus P.,Krogsgaard-Larsen, Povl,Madsen, Ulf
, p. 3524 - 3538 (2008/02/07)
5-Substituted 1-pyrazolol analogues of ibotenic acid have been synthesized and pharmacologically characterized on ionotropic and metabotropic glutamate receptors (iGluRs and mGluRs). The syntheses involved introduction of bromide, alkyls, phenyl and aryla
Synthesis of 5-Substituted 1-Hydroxypyrazoles through Directed Lithiation of 1-(Benzyloxy)pyrazole
Vedsoe, Per,Begtrup, Mikael
, p. 4995 - 4998 (2007/10/03)
1-Hydroxypyrazoles have been converted to 1-(benzyloxy), , , and (silyloxy)pyrazoles. 1-(Benzyloxy)pyrazole was lithiated selectively in the 5-position.Subsequent reaction with electrophiles gives rise to 1-(benzyloxy)pyrazole with carbon, halogen, silicon, sulfur, or tin substituents at the 5-position. 1-(Benzyloxy)pyrazoles could be debenzylated by hydrogen bromide or hydrogenolysis producing 5-substituted 1-hydroxypyrazoles in high overall yield.
