Reactions with Hydrazonoyl Halides 40: Synthesis of Some New 1,3,4‐Thiadiazoles, Pyrrolo[3,4‐c]pyrazoles, Pyrazoles, and Pyrazolo[3,4‐d]pyridazines

2005 ◽  
Vol 35 (2) ◽  
pp. 249-261 ◽  
Author(s):  
Chahid Moustapha ◽  
Nadia A. Abdel‐Riheem ◽  
Abdou O. Abdelhamid
Keyword(s):  
Hydrazonoyl Halides

Reactions with Hydrazonoyl Halides 53:1 Synthesis and Antimicrobial Activity of Triazolino[4,3-a]pyrimidines and 5-Arylazothiazoles

2007 ◽  
Vol 182 (10) ◽  
pp. 2409-2418 ◽  
Author(s):  
Abdou O. Abdelhamid ◽  
Zeineb H. Ismail ◽  
Marwa S. El Gendy ◽  
Moustafa M. Ghorab
Keyword(s):  
Antimicrobial Activity ◽  
Hydrazonoyl Halides

Heterocyclic Synthesis Using Nitrilimines: Part 9. Synthesis of New 1,3,4-Thiadiazin-5-one Derivatives

2008 ◽  
Vol 63 (5) ◽  
pp. 585-590 ◽  
Author(s):  
Hany M. Dalloul ◽  
El-Hossain A. R. Mohamed ◽  
Ali Z. El-Shorafa
Keyword(s):  
Spectral Data ◽  
Intramolecular Cyclization ◽  
Heterocyclic Synthesis ◽  
Hydrazonoyl Halides ◽  
Elemental Analyses

A series of new 3,5,6-thiadiaza-4-hexenoates (4a - k) were synthesized from the reaction of the corresponding hydrazonoyl halides 1 with ethyl mercaptoacetate (3). These compounds underwent intramolecular cyclization to 1,3,4-thiadiazin-5-one derivatives (5a - k) in the presence of MeONa or LiH. The structures of the synthesized compounds were confirmed by their elemental analyses and spectral data.

scholarly journals Synthesis of new functionalized derivatives of indolo[2,3-e][1,2,4]-triazolo-[4,5-b]-1,2,4-triazine

2013 ◽  
Vol 78 (8) ◽  
pp. 1119-1125 ◽  
Author(s):  
Sobhi Gomha ◽  
Hatem Abdel-Aziz
Keyword(s):  
Indole Derivatives ◽  
Hydrazonoyl Halides ◽  
Derivatives Of

New functionalized 1,2,4-triazolo-[4,3-b]-1,2,4-triazino-[5,6-b]indole derivatives were synthesized via reaction of the hydrazonoyl halides with 5H-2,3-dihydro-1,2,4-triazino[5,6-b]indole-3-thione or its 3-methylthio derivative. The mechanism and the regioselectivity of the studied reactions have been discussed.

Studies with Functionally Substituted Enamines: The Reactivity of Enaminals and Enamino Esters toward Naphthoquinone, Hydrazonoyl Halides, Aminoazoles and Hippuric Acid

Synthesis ◽  
2006 ◽  
Vol 2006 (01) ◽  
pp. 59-62 ◽  
Author(s):  
Saad Makhseed ◽  
Balkis AL-Saleh ◽  
Huwaida M. Hassaneen ◽  
Mohamed Hilmy Elnagdi
Keyword(s):  
Hippuric Acid ◽  
Hydrazonoyl Halides
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