Results 161 to 170 of about 562 (194)

The Chemistry of Heterocyclic Hydrazonoyl Halides

1995
Publisher Summary Hydrazonoyl halides have emerged as an important class of intermediates, particularly for the synthesis of heterocyclic compounds. This chapter discusses the synthesis, properties, and reactions of Hydrazonoyl Halides. The mechanisms of some of the reactions and the structures of some of the products are outlined.
Ahmad Sami Shawali, Magda Ahmad Abdallah
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Hydrazonoyl Halides as Precursors for New Fused Heterocycles of 5α‐Reductase Inhibitors

Archiv der Pharmazie, 2011
AbstractA new series of benzo[6,7]cyclohepta[1,2‐d]triazolo[4,3‐a]pyrimidines 8a–l was synthesized via reaction of heterocyclic thione 4 or its methyl derivatives 10 with hydrazonoyl halides 5a–l. Also, reaction of compound 4 with a mixture of chloroacetic acid and aromatic aldehyde derivatives gave benzo[6,7]cyclohepta[1,2‐d]thiazolo[3,2‐a]pyrimidin‐3‐
Thoraya A, Farghaly, Sobhi M, Gomha, Eman M H, Abbas, Mohamed M, Abdalla   +3 more
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REACTION OF HYDRAZONOYL HALIDES WITH 2,4-DIOXOTETRAHYDROTHIAZOLE-5-THIOCARBOXANILIDES

Phosphorus, Sulfur, and Silicon and the Related Elements, 1995
Abstract Reaction of 3-phenyl-2,4-dioxotetrahydrothiazole-5-thiocarboxanilides 3 with hydrazonoyl halides 4 in N,N-dimethylformamide in the presence of potassium hydroxide yielded the thiadiazoline derivatives 7 and 13. The mechanism of formation of the latter products is discussed.
Abdelgawad A. Fahmi, Hyam A. Abdelhadi, Mohammad S. Algharib   +2 more
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ChemInform Abstract: REACTIONS OF HYDRAZONOYL HALIDES WITH IMIDAZOLES AND BENZIMIDAZOLES

Chemischer Informationsdienst, 1979
AbstractN‐Methylimidazol und N‐substituierte Benzimidazole werden mit Hydrazonoylhalogeniden in CHCl3 in Gegenwart von NEt3 umgesetzt.
P. DALLA CROCE, M. IOANNISCI, E. LICANDRO   +2 more
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Reactions and Biological Activities of Hydrazonoyl Halides

Current Organic Synthesis
Abstract: This review covers the literature information on the chemistry of hydrazonoyl halides with different substrates to give heterocyclic compounds. From the foregoing survey, it seems this provides a useful and convenient strategy for the synthesis of numerous heterocyclic derivatives.
Alarbash, Munirah, Al-Faiyz, Yasir, Wiggins, Jeffery, Sayed, Abdelwahed   +3 more
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ChemInform Abstract: Reactions with Hydrazonoyl Halides. Part 21. Reinvestigation of the Reactions of Hydrazonoyl Bromides with 1,1‐Dicyanothioacetanilide.

ChemInform, 1999
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Abdou O. Abdelhamid, Hussein F. Zohdi, Nora M. Rateb   +2 more
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ChemInform Abstract: Synthesis and Reactions of Phosphinimines Using Hydrazonoyl Halides.

ChemInform, 1995
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
H. M. HASSANEEN, N. M. ELWAN, H. A. ABDELHADI, M. T. FOUAD, M. S. ALGHARIB   +4 more
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Regioselectivity in Reactions of Bis‐Hydrazonoyl Halides with Some Bifunctional Heterocycles

Journal of the Chinese Chemical Society, 2002
AbstractBis‐hydrazonoyl chloride 1 reacts regioselectively with 3‐mercapto‐1,2,4‐triazole 2a, 2,3‐dihydro‐3‐thioxo‐1,2,4‐triazin‐5(4H)‐one 2b and 2‐mercaptobenzimidazole 2c to give the hitherto unknown annelated 2,3‐bis‐(phenylhydrazono)thiazoles 6a‐c, respectively.
Ahmad S. Shawali, Magda A. Abdallah, Mohie E. M. Zayed   +2 more
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Biological Activity, Apoptotic Induction and Cell Cycle Arrest of New Hydrazonoyl Halides Derivatives

Anti-Cancer Agents in Medicinal Chemistry, 2019
Background:The hydrazonoyl halides are presently an important target in the field of medicinal chemistry. The interest in the chemistry of hydrazonoyl halides is a consequence of the fact that they undergo a wide variety of reactions which provide routes to a myriad of both heterocyclic and acyclic compounds.
Magda F, Mohamed, Hamdi M, Hassaneen, Emad M, Elzayat, Salwa M, El-Hallouty, May, El-Manawaty, Fatma M, Saleh, Yasmin, Mohamed, Dina, El-Zohiry, Ghada, Fahmy, Nesma, Abdelaal, Nouran, Hassanin, Nouran, Hossam   +11 more
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ChemInform Abstract: REACTION OF HYDRAZONOYL HALIDES WITH N‐ARYL‐SUBSTITUTED BENZAMIDINES

Chemischer Informationsdienst, 1980
AbstractHydrazonoylchloride (I) reagieren mit den N‐Arylbenzamidinen (II) zu Mischungen aus den Reaktionsprodukten (III)‐(VII).
F. ANZANI, P. DALLA CROCE, R. STRADI
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