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1

Pyrimidine derivatives and related compounds. A novel synthesis of pyrimidines, pyrazolo[4,3-d]pyrimidines and isoxazolo[4,3-d] pyrimidine

Mohamed Hilmy Elnagdi, Shereif Mahmoud Fahmy, Ebtisam Abdel Aziz Hafez, Mohamed Riffaat Hamza Elmoghayar, Samir Abdel Rahman Amer

Journal:

Journal of Heterocyclic Chemistry

Year:

1979

File:

PDF, 215 KB

1979

2

A facile synthesis of substituted perhydro-1,3-thiazin-4-ones and 2-thioxoperhydro-4-pyrimidinones

Ahmed Hafez Hussien Elghandour, Mahmound Mohamed Mahfouz Ramiz, Said Ahmed Soliman Ghozlan, Mohamed Riffat Hamza Elmoghayar

Journal:

European Journal of Organic Chemistry

Year:

1988

Language:

english

File:

PDF, 419 KB

english, 1988

3

Reactions with heterocyclic diazonium salts: novel synthesis of pyrazolo[4,3-c]pyridazines and of pyrazolo[4,3-c]pyrazoles

Elnagdi, Mohamed Hilmy, Elfahham, Hassan Attia, Elmoghayar, Mohamed Rifaat Hamza, Sadek, Kamal Usef, Elgemeie, Galal Eldin Hamza

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1982

Language:

english

File:

PDF, 329 KB

english, 1982

4

Reactions with Carbo(heterylhydrazonoyl) Halides. I. Chemistry of Carbo(3-phenylpyrazol-5-yl-hydrazonoyl) Chlorides

Mohamed Rifaat Hamza Elmoghayar, Mohamed Hilmy Elnagdi, Mohamed Kamal Ahmed Ibrahim, Mohamed Mohamed Mohamed Sallam

Journal:

Helvetica Chimica Acta

Year:

1977

Language:

english

File:

PDF, 272 KB

english, 1977

5

Activated Nitriles in Heterocyclic Synthesis, IV. Synthesis of 1,3,4-Thiadiazole Derivatives

Mohamed Rifaat Hamza Elmoghayar, Edwar Amin Ghali, Mahmoud Mohamed Mahfouz Ramiz, Mohamed Hilmy Elnagdi

Journal:

European Journal of Organic Chemistry

Year:

1985

Language:

english

File:

PDF, 399 KB

english, 1985

6

Reaction of 2-arylhydrazono-3-oxonitriles with hydroxylamine. Synthesis of 3-amino-4-arylazoisoxazoles

Elnagdi, Mohamed H., Elmoghayar, Mohamed R. H., Hafez, Ebtisam A. A., Alnima, Hikmat H.

Journal:

Journal of Organic Chemistry

Year:

1975

Language:

english

File:

PDF, 500 KB

english, 1975

7

Electroreduction of a series of 2-benzoylamino-5-(1-cyano-2-arylvinyl)-1,3,4-thiadiazoles

Fahmy, Hussein M., Fattah, Nahed F. Abdel, Elmoghayar, Mohamed R. H., Azzem, Magdy Abdel

Journal:

Journal of the Chemical Society Perkin Transactions 2

Year:

1988

Language:

english

File:

PDF, 497 KB

english, 1988

8

A Novel Synthesis of Thiazolo[2,3- a ]pyridine Derivatives

Elmoghayar, Mohamed Rifaat Hamza, Ibraheim, Mohamed Kamal Ahmed, Elghandour, Ahmed Hafez Hussin, Elnagdi, Mohamed Hilmy

Journal:

Year:

1981

File:

PDF, 170 KB

1981

9

Transition Metal Complexes of an Antipyrine Derivative

Shoukry, Mohamed M., Elmoghayar, Mohamed R. H., Ibraim, Mohamed K. A., Elghandour, Ahmed H. H.

Journal:

Journal of the Chinese Chemical Society

Year:

1987

Language:

english

File:

PDF, 363 KB

english, 1987

10

Pyrimidine Derivatives and Related Compounds, XI: Synthesis of some new Mercaptopyrazolo[1,5-a]pyrimidines and Mercaptopyrazolo[1,5-c]-as-triazines

Mohamed R. H. Elmoghayar, Mohamed K. A. Ibrahim, Ibrahim El-Sakka, Ahmed H. H. Elghandour, Mohamed H. Elnagdi

Journal:

Archiv der Pharmazie

Year:

1983

Language:

english

File:

PDF, 294 KB

english, 1983

11

Reactions with the arylhydrazones of some α,β-diketoesters

Prof. Dr. Abdel Hamid Harhash, Prof. Dr. Abdel Kader Mansour, Dr. Mohamed Hilmy Elnagdi, Dr. Mohamed Rifaat Hamza Elmoghayar

Journal:

Advanced Synthesis & Catalysis

Year:

1973

Language:

english

File:

PDF, 401 KB

english, 1973

12

Reactions with β-cyanoethylhydrazine, III. A new approach for the synthesis of substituted 3,5-diaminopyrazole and 1,2,4-triazoles

Mohamed R. H. Elmoghayar, Ahmed H. H. Elghandour

Journal:

Monatshefte für Chemie - Chemical Monthly

Year:

1986

Language:

english

File:

PDF, 199 KB

english, 1986

13

Reactions with heterocyclic diazonium salts: New routes for the synthesis of pyrazolo[1,5-c]-1,2,4-triazoles and pyrazolo[1,5-c]-as-triazines

Mohamed Hilmy Elnagdi, Mohamed Riffat Hamza Elmoghayar, Ezzat Mohamed Kandeel, Mohamed Kamal Ahmed Ibrahim

Journal:

Journal of Heterocyclic Chemistry

Year:

1977

File:

PDF, 246 KB

1977

14

ChemInform Abstract: RK. MIT ARYLHYDRAZONEN VON ALPHA,BETA-DIKETOESTERN

HARHASH, ABDEL HAMID, MANSOUR, ABDEL KADER, ELNAGDI, MOHAMED HILMY, ELMOGHAYAR, MOHAMED RIFAAT HAMZA

Journal:

Chemischer Informationsdienst

Year:

1973

Language:

german

File:

PDF, 267 KB

german, 1973

15

ChemInform Abstract: REACTIONS OF ALPHA-ARYLHYDRAZONO-BETA-OXO-BETA-PHENYL-PROPIO-NITRILES

ELNAGDI, MOHAMED HELMY, ELMOGHAYAR, MOHAMED RIFAAT HAMZA, FLEITA, DAISY HANNA

Journal:

Chemischer Informationsdienst

Year:

1975

File:

PDF, 187 KB

1975

16

Studies on arylhydrazonoisoxazolinethiones. Behaviour of 4-arylhydrazono-3-phenyl-2-isoxazoline-5-thiones toward hydrazines, grignard reagents and alkylating agents

Sanaa O. Abd Allah, Mohamed R. Elmoghayar, Sadek E. Abdou

Journal:

Journal of Heterocyclic Chemistry

Year:

1984

File:

PDF, 218 KB

1984

17

A facile Synthesis of Pyrazolo[1,5-a]pyridine Derivatives: Reaction of cinnamonitriles with 5-amino-4-cyano-3-cyanomethylpyrazole

Dr. Ahmed Hafez Hussein Elghandour, Dr. Mohamed Rifaat Hamza Elmoghayar, Dr. Mahmoud Mohamed Mahfouz Ramiz

Journal:

Advanced Synthesis & Catalysis

Year:

1988

Language:

english

File:

PDF, 191 KB

english, 1988

18

The reaction of nitriles with mercaptoacetic acid. A new synthesis of thiazole derivatives

Mohamed Hilmy Elnagdi, Mohamed Ali Elsayed Khalifa, Mohamed Kamal Ahmed Ibraheim, Mohamed Riffat Hamza Elmoghayar

Journal:

Journal of Heterocyclic Chemistry

Year:

1981

Language:

english

File:

PDF, 244 KB

english, 1981

19

The reaction of malononitrile with thioglycolic acid. A novel procedure for the synthesis of thiazolone derivatives

Mohamed Hilmy Elnagdi, Mohamed Riffaat Hamza Elmoghayar, Abu El-Futooh G. Hammam, Salah Amin Khallaf

Journal:

Journal of Heterocyclic Chemistry

Year:

1979

File:

PDF, 204 KB

1979

20

Activated Nitriles in Heterocyclic Syntheses, I Novel Synthesis of Pyrrolones and 1,2,4-Triazol-3-oyl nitriles

Elmoghayar, Mohamed Rifaat Hamza, Ibrahim, Mohamed Kamal Ahmed, Ramiz, Mahmoud Mohamed Mahfouz, Elnagdi, Mohamed Hilmy

Journal:

Zeitschrift für Naturforschung B

Year:

1983

Language:

english

File:

PDF, 4.36 MB

english, 1983

21

Reactions of α-Arylhydrazono-β-oxo-β-phenyl-propionitriles

Dr. Mohamed Helmy Elnagdi, Mohamed Rifaat Hamza Elmoghayar, Dr. Daisy Hanna Fleita

Journal:

Advanced Synthesis & Catalysis

Year:

1974

Language:

english

File:

PDF, 290 KB

english, 1974

22

Structural Studies of Metal complexes with a Thiosemicarbazide Derivative

Shoukry, Mohamed M., Elmoghayar, M. R. H., Elghandour, A. H.

Journal:

Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry

Year:

1987

Language:

english

File:

PDF, 340 KB

english, 1987

23

A New, Convenient Synthesis of 1,6-Diaryl-2-thioxoperhydro-4-pyrimidinones: Reaction of 3-Phenyl-2-propenoyl Isothiocyanate With Aromatic and Heteroaromatic Amines

Ebtisam Abdal Aziz Hafez, Mohamed Rifaat Hamza Elmoghayar, Mahmoud Mohamed Mahfouz Ramiz

Journal:

European Journal of Organic Chemistry

Year:

1987

Language:

english

File:

PDF, 247 KB

english, 1987

24

ChemInform Abstract: RK. MIT ARYLHYDRAZONEN VON ALPHA,BETA-DIKETOESTERN

HARHASH, ABDEL HAMID, MANSOUR, ABDEL KADER, ELNAGDI, MOHAMED HILMY, ELMOGHAYAR, MOHAMED RIFAAT HAMZA

Journal:

Chemischer Informationsdienst

Year:

1973

File:

PDF, 267 KB

1973

25

ChemInform Abstract: PYRIMIDINE DERIVATIVES AND RELATED COMPOUNDS PART 1, SYNTHESIS OF SOME 2,3-DISUBSTITUTED 4,5,6,7-TETRAHYDROPYRAZOLO(1,5-A)PYRIMIDINE DERIVATIVES

ELNAGDI, MOHAMED HILMY, FAHMY, SHERIEF MAHMOUD, ELMOGHAYAR, MOHAMED RIFFAAT HAMZA, ILIAS, MOHAMED AJMAL MOHAMED

Journal:

Chemischer Informationsdienst

Year:

1975

File:

PDF, 241 KB

1975

26

Reactions with cyclic amidines II. The behaviour of cyclic amidines toward ethoxycarbonyl and aroyl isothiocyanates

Mohamed Hilmy Elnagdi, Sherif Mahmoud Fahmy, Mohamed Rifaat Hamza Elmoghayar, Ezzat Mohamed Kandeel

Journal:

Journal of Heterocyclic Chemistry

Year:

1979

File:

PDF, 276 KB

1979

27

α,β-Unsaturated nitriles in heterocyclic synthesis: Synthesis of some new pyrazolo[1,5-a]pyrimidine derivatives

Abdel-Ghani A. El-Agamey, Sanaa O. Abdalla, Mohamed R. H. Elmoghayar

Journal:

Monatshefte für Chemie - Chemical Monthly

Year:

1984

Language:

english

File:

PDF, 297 KB

english, 1984

28

The reaction of thioglycolic acid with α,β-unsaturated nitriles: A new route for the synthesis of thiazolo[3,2-a]pyridines

Elnagdi, Mohamed Hilmy, Elmoghayar, Mohamed Rifat Hamza, Elghandour, Ahmed Hafez Hussein, Sadek, Kamal Usef

Journal:

Collection of Czechoslovak Chemical Communications

Year:

1990

Language:

english

File:

PDF, 209 KB

english, 1990

29

Pyrimidine Derivatives and Related Compounds, IX / Preparation of 5-Aminopyrazolo[1,5-a]pyrimidines and of Oxazino[4,5 : 5,6]pyrazolo[1,5-a]pyrimidines, a New Ring System

Elnagdi, Mohamed Hilmy, Fahmy, Sherif Mahmoud, Elmoghayar, Mohamed Riffaat Hamza, Negm, Abdalla Mohamed

Journal:

Zeitschrift für Naturforschung B

Year:

1977

Language:

english

File:

PDF, 3.91 MB

english, 1977

30

The Chemistry of 3-Oxoalkanenitriles

Elnagdi, Mohamed Hilmy, Elmoghayar, Mohamed Rifaat Hamza, Elgemeie, Galal Eldin Hamza

Journal:

Year:

1984

Language:

english

File:

PDF, 1.88 MB

english, 1984

31

Reactions with Heterocyclic Diazonium Salts, II Synthesis of Some New Pyrazolo[1,5-c]-as-triazines and 1,2,4-Triazolo[1,5-c] -as-triazines

Elnagdi, Mohamed Hilmy, Hamza Elmoghayar, Mohamed Rifaat, Fahmy, Shereif Mahmoud, Ibraheim, Mohamed Kamal Ahmed, Alnima, Hikmat Hussein

Journal:

Zeitschrift für Naturforschung B

Year:

1978

Language:

english

File:

PDF, 4.16 MB

english, 1978

32

ChemInform Abstract: PYRIMIDINE DERIVATIVES AND RELATED COMPOUNDS PART 1, SYNTHESIS OF SOME 2,3-DISUBSTITUTED 4,5,6,7-TETRAHYDROPYRAZOLO(1,5-A)PYRIMIDINE DERIVATIVES

ELNAGDI, MOHAMED HILMY, FAHMY, SHERIEF MAHMOUD, ELMOGHAYAR, MOHAMED RIFFAAT HAMZA, ILIAS, MOHAMED AJMAL MOHAMED

Journal:

Chemischer Informationsdienst

Year:

1975

File:

PDF, 241 KB

1975

33

The reaction of isothiocyanates with 2-cyanoethanoic acid hydrazide. A novel synthesis of 1,3,4-thiadiazoles

Mohamed Rifaat Hamza Elmoghayar, Sanaa Osman Abdalla, Mohamed Yousry Abdel-Samad Nasr

Journal:

Journal of Heterocyclic Chemistry

Year:

1984

File:

PDF, 186 KB

1984

34

Activated nitriles in heterocyclic synthesis. Part III. Synthesis of N-amino-2-pyridone, pyranopyrazole and thiazolopyridine derivatives

Mohamed Rifaat Hamza Elmoghayar, Abdel-Ghani Ali El-Agamey, Mohamed Yousri Abdel-Samad Nasr, Mohamed Mohamed Mohamed Sallam

Journal:

Journal of Heterocyclic Chemistry

Year:

1984

File:

PDF, 212 KB

1984

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