Mohamed N. M. Khodeir

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The synthesis of visnaginone-oxime (2 a) and khellinone-oxime (2 b) is reported. Beckmann rearrangement of 2 a and 2b using different cyclising agents was studied. Structure assignement for the produced benzoxazole derivatives and benzisoxazole derivatives was confirmed by chemical and spectral evidences. Utilization of visnaginone (la) and khellinone (lb)(More)
Three new 5-[(1-benzoylamino)styren-1-yl]-1,3,4-oxadiazoline-2- thiones and nine of their Mannich bases with some primary and secondary amines and three N-hydroxymethyl derivatives are synthesized. Some of the new derivatives were active against the bacteria Escherichia coli.
Some novel sulfonate ester-containing mono-, bi- and tricyclic fused ring systems (IV, Xa,b, XIa,b, XIV and XV) together with their precursors I, II and III were synthesized with a view to evaluating their efficacy as new sulfur-containing fungitoxic agents. The structures of the named compounds were established from elemental and spectral analyses.
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