mehdi shafiee ahmad reza khosropour iraj mohammadpoor-baltork majid moghadam shahram tangestaninejad
reaction between aromatic aldehydes and 3–methyl-1-phenyl-2-pyrazoline-5-one catalyzed by nano-sio2/hclo4 in water under reflux provided a simple and efficient route for the synthesis of 4-((5-hydroxy-3-methyl-1-phenyl-1h-pyrazol-4-yl)(aryl)methyl)-3-methyl-1-phenyl-1h-pyrazol-5-ol derivatives in high yields.
Methyl 3,4-dicarboxy-3-hydroxyeicosanoate (1) was isolated from the acetone extract of the fruiting bodies of Ciborinia camelliae Kohn. The planar structure of 1 was elucidated by spectroscopic methods.
