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Rapid Synthesis of New Poly(amide-imide)s Based on N-(4-Carboxy phenyl) trimellitimide and Hydantoin Derivatives under Microwave Irradiation
Thermally stable polymers icrowave irradiation Poly (amide-imide Hydantoin derivatives
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2010/4/9
Six new poly (amide-imide)s (6a-f) were prepared under microwave irradiation by polycondensation reaction of diacid chloride (4) with 6 different derivatives of hydantoins (5a-f) using O-cresol as a m...
A Rapid and Convenient Synthetic Route to Novel 1,5-Benzodiazepine Derivatives of 5-Methyl-3-phenyl-2-oxo-Δ4-1,3,4-oxadiazolines from p-Acetylphenylsydnone and Their Pharmacological Activity
pp-acetylphenylsydnone 1 3-dipolar cycloaddition 1 5-diazepine Michael addition microw
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2007/12/19
摘要 A simple and high yielding method for the integration of 1,5-benzodiazepines integrated with 5-methyl- 2-oxo-3-phenyl-Δ4-1,3,4-oxadiazolines in 75%—90% yield by microwave irradiation is devised. Mi...
A Rapid Spectrophotometric Method to Resolve a Binary Mixture of Food Colorants (Riboflavine and Sunset Yellow)
Derivative spectrophotometry simultaneous determination zero-crossing measurements sunset yellow riboflavine colorants food analysis
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2010/4/20
A very simple and rapid spectrophotometric method using measurements at zero-crossing wavelength is described for resolving binary mixtures of riboflavine (E-101) and sunset yellow (E-110) in a powder...