Fatehia. K. Mohamed

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Chitin and chitosan were obtained by chemical treatments of shrimp shells. Different particle sizes (50-1000 μm) of the raw material were used to study their effect on size distribution, demineralization, deproteinization and deacetylation of chitin and chitosan isolation process. The particle size in the range of 800-1000 μm was selected to isolate chitin,(More)
A simple and efficient synthesis of [4-(3, 4-dimethylphenyl)-5, 6, 7, 8-tetrabromo-1-oxo-1Hphthalazin-2-yl]-acetic acid hydrazide IV has been carried out. The obtained hydrazide IV has been used in synthesis of some interesting heterocycles such as pyrazolone, thiazolidinone,pyrimidine,benzoxazine lactam, rhodanine, quinazoline, benzoxazinoneVIIIXVII. The(More)
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