Explanipedia

Synthesis and biological study of some new naphtho[2,1-b]furan and related heterocyclic systems Open

M. Z. A. BADR, Adel M. Kamal El‐Dean, Osama S. Moustafa, Remon M. Zaki · 2006

Chemistry

In the reaction of 1-cyano-2-naphthol (4) or its sodium salt with different alkylating agent, the O-alkylated derivatives (5a–d) were produced which underwent ring closure reactions using sodium ethoxide solution to give aminonaphtho [2,1-…

Synthesis of New Triazolo[4',5':2,3]-triazino[5,6-b]quinoxalines Open

O. S. Moustafa, M. Z. A. BADR · 1997

Chemistry

Reaction of triazino[5,6-b]-3(4H)-quinoxalin one 2 with and/or pocl3 gave triazinoquinoxalin-3-thione 3 and/or the corresponding 3-chloro derivative 7. Treatment of 3 with alkvl (aralkyl) halides gave the corresponding 3-thioalkyl substitu…

Chemistry and Cyclisation Reactions of Pyrimidothienoquinoxaline Derivatives. Part-IV Open

M. Z. A. BADR, S. A. MAHGOUB, F. M. Atta, O. S. Moustafa · 1997

Chemistry

Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt Manuscript received 4 April 1994, revised 26 May 1995, accepted 20 June 1995 The pyrimidothienoquinoxaline (2a; R = OH), derived from 1 and formamide, is thionated …

Preparation of New Azole and Pyrimidine Derivatives Open

F. M. ABO EL-LATIF, M. A. BARSI, Amany Sayed Maghraby, M. Z. A. BADR, D. Döpp · 1995

Chemistry Biology

Chemistry Department, Faculty of Science, Aswan, Egypt Organic Chemistry Division, Duisburg University, Duisburg, Germany Manuscript received 9 June 1992, revised I February 1994, accepted 8 February 1994 Preparation of New Azole and Pyrim…

Novel Synthesis of Furo[2,3-b]indole Derivatives Open

Fathy F. Abd El‐Latif, Abd El-Kareem Mohammed Nasr Gohar, A. M. FAHMY, M. Z. A. BADR · 1986

Chemistry

Isatin reacted with diethyl 3-amino-2-cyano-2-pentenedioate in ethanol and in presence of Et3N to give 3-(1-amino-2-cyano-2-ethoxycarbonylethenyl-2H-furo[2,3-b]indol-2-one. The reaction of (2-oxo-3-indolinylidene)malononitrile (3a) with th…

Reaction of Quinoxaline Derivatives with Nucleophilic Reagents Open

M. Z. A. BADR, Galal Mohamed El-Naggar, H. A. H. EL‐SHERIEF, Abdou El-Sayed Abdel-Rahman, Moustafa Fouzy Aly · 1983

Chemistry

2-Chloro-3-methylquinoxaline reacts with aromatic amines in basic medium forming 2-arylamino-3-methylquinoxalines, also it reacts with mercaptoacetic acid. The 3-methyl-2(1H)-quinoxalinone condenses with aromatic aldehydes forming the corr…

Studies on Synthesis of 6-Bromo-2,3-disubstituted 4(3H)-Quinazolinones and Their Thiones Open

M. Z. A. BADR, Hassan Ahmed Hassan El-Sherief, Abdallah Mohamed Mahmoud · 1980

Chemistry

Synthesis of some 2,3-disubstituted 6-bromo-4(3H)-quinazolinones is described. Treatment of some 4-quinazolinones with phosphorus pentasulfide gave the corresponding 4-quinazolinethiones. The reaction of 6-bromo-2-methyl-3,1-benzoxazin-4-o…

Molecular Rearrangements, XV Photolysis and Thermolysis of N-a- and ß-Phenethyl Toluidines Open

M. Z. A. BADR, M. M. ALY, Gao Runlin, A. M. FAHMY · 1979

Chemistry

Direct irradiation of each of N-a- and /3-phenethyl toluidine in carbon tetrachloride solution leads t o homolysis of the phenethyl-nitrogen bond forming phenethyl and arylamino free radicals. The fates of such radicals are discussed in te…

Molecular Rearrangements. VII. N-Alkylarylamines (III). Thermal Rearrangement of Secondary Arylamines Open

A. M. Osman, M. Z. A. BADR, A. E. ABDEL‐RAHMAN · 1976

Chemistry

Heating of N-benzyl-o- and p-toluidines resulted in migration of the benzyl group to the corresponding toluidine nucleus. The pyrolysis of N-benzyl-o-toluidine produced ammonia, toluene, bibenzyl, trans-stilbene, o-toluidine together with …

Molecular Rearrangements. Part IV. Aryl (Alkyl) Amines (1), Thermal Rearrangement of N-Benzyl-N-Methylaniline Open

M. Z. A. BADR, M. M. ALY · 1974

Chemistry

Heating N-benzyl-N-methylaniline under reflux or heating at ∼315° in sealed tubes, in the absence of any promotor for 100 h, resulted in its rearrangement, producing methylamine, diphenylmethane, and dibenzyl together with o-toluidine and …

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