New routes to 1,3,4-oxadiazoles, 1,3,4-oxadiazolopyridines, and pyridopyridazinesMohamed Hilmy Elnagdi; Nadia Sobhy Ibrahim; Fathy Mohamed Abdelrazek; Ayman Wahba Erian · 1988

HYDRAZONES IN HETEROCYCLIC SYNTHESIS; SYNTHESIS OF 1,3,4-THIADIAZOLE DERIVATIVESErian, Ayman Wahba; Manhi, Fatma Mohamed; Zayed, Salem El-Gohary; Ali, Fatma Ahmed; Elnagdi, Mohamed Hilmy · Phosphorus, Sulfur, and Silicon and the Related Elements · 1998

Studies with Alkylheteroaromatic π-Deficient Compounds: Novel Synthesis of Thieno[3,4-d]pyridazines and PhthalazinesMohamed Hilmy Elnagdi; Abdalla Mohamed Negm; Ayman Wahba Erian · 1989

Studies on alkylheteroaromatic compounds. The reactivity of alkyl polyfunctionally substituted azines towards electrophilic reagentsMohamed Hilmy Elnagdi; Fathy Mohamed Abdelrazek; Nadia Sobhy Ibrahim; Ayman Wahba Erian · 1989

Synthesis of Substituted Azaindenes: Synthesis of New Pyrazolo[1,5- <i>a</i> ]pyrimidine DerivativesElnagdi, Mohamed Hilmy; Erian, Ayman Wahba · Bulletin of the Chemical Society of Japan · 1990

Studies with polyfunctionally substituted heteroaromatics: synthesis of new heterocyclic aromatic amines as potential intermediates for preparation of dyes for thermal diffusion printingErian, Ayman Wahba; Hafez, Ebtisam Abdul Aziz; Darwish, Elham Sayed; Elnagdi, Mohamed Hilmy · 1998

Studies with polyfunctionally substituted heteroaromatics: 2-Phenyl-4-p-tolylhydrazono-2-oxazoline-5-one as a precursor for the synthesis of substituted 1,2,4-triazoles and pyridinesMohamed Hilmy Elnagdi; Abdalla Mohamed Negm; Ayman Wahba Erian; Salah El-Kousy · 1995