In the recent years pyrimidines and pyrazoles
have attracted much interest due to the biological and pharmacological properties.
as potential anti-angiogenesis agents: a contemporary overview.
Kumari, "Synthesis and antimicrobial activities of novel 1,5-diaryl pyrazoles
," European Journal of Medicinal Chemistry, vol.
are chemical compounds of synthetic origin that have a five-membered heterocycle with two nitrogen atoms and three adjacent carbon atoms.
The results of the present study indicate the superiority of ATC over other NIs, including DCD, encapsulated calcium carbide and pyrazoles
, as reported in some earlier studies conducted at 35[degrees]C with NIs and N[H.sub.4.sup.+]-N applied as solution in the bulk soil (Singh et al.
Next, we investigated the ultrasound-promoted reactions of epoxy chalcones with hydrazine monohydrate in order to verify the possibility of obtaining aromatic pyrazoles
without acid catalysis or detection of the intermediates 4-hydroxy-4,5-dihydro-[sup.1]H-pyrazoles.
El-Mossalamy, "An efficiently sonochemical synthesis of novel pyrazoles
, bipyrazoles and pyrazol-3-ylpyrazolo[3,4-d]pyrimidines incorporating 1H-benzoimidazole," Current Organic Chemistry, vol.
Padmavathi, "Synthesis, antimicrobial and antioxidant activities of substituted pyrazoles
, isoxazoles, pyrimidine and thioxopyrimidine derivatives," European Journal of Medicinal Chemistry, vol.
Other subjects covered include synthesis and electronic properties of assemblies of diastereomers of nickel II complexes with tetracyanometalates, synthesis of functionalized pyrazoles
, stereochemical aspects of interaction between some monosaccharides and l-alpha-amino acids in aqueous solutions, and challenges in carbohydrate chemistry.
However, Beauchemin, along with graduate student Joseph Moran and undergraduate student Tanya Suen, have shown that efficient 1,4-additions of imidazoles, pyrazoles
, and triazoles can be accomplished under optimized conditions (Equation 1).