Enamines in Heterocyclic Synthesis: A Novel Simple and Efficient Route to Condensed Pyridazines

2011 ◽  
Vol 66 ◽  
pp. 0597 ◽  
Author(s):  
E. S. Darwish ◽  
M. A. Abdelrahman ◽  
A. M. Salaheldin
Keyword(s):  
Heterocyclic Synthesis ◽  
Efficient Route

Enamines in Heterocyclic Synthesis: A Novel Simple and Efficient Route to Condensed Pyridazines

2011 ◽  
Vol 66 (6) ◽  
pp. 597-602
Author(s):  
Elham S. Darwish ◽  
Mahmoud A. Abdelrahman ◽  
Abdellatif M. Salaheldin
Keyword(s):  
Hydrazine Hydrate ◽  
Triethyl Orthoformate ◽  
Heterocyclic Synthesis ◽  
Active Methyl ◽  
Efficient Route ◽  
Pyridazinone Derivatives

An efficient and easy preparation of enamine derivatives, via active methyl and methylene compounds by in situ-generated 1-(diethoxymethyl)piperidine, produced from the mixture of triethyl orthoformate/piperidine/DMF, are described. Some new pyridazinone derivatives have been synthesized from the reaction of enamines with hydrazine hydrate and cyanoacid hydrazide.

ChemInform Abstract: Enamines in Heterocyclic Synthesis: A Novel Simple and Efficient Route to Condensed Pyridazines.

ChemInform ◽  
2011 ◽  
Vol 42 (43) ◽  
pp. no-no
Author(s):  
Elham S. Darwish ◽  
Mahmoud A. Abdelrahman ◽  
Abdellatif M. Salaheldin
Keyword(s):  
Heterocyclic Synthesis ◽  
Efficient Route

Carbon Monoxide Related Reductions

INEOS OPEN ◽  
2020 ◽  
Vol 3 ◽  
Author(s):  
O. I. Afanasyev ◽  
◽  
D. Chusov ◽  
Keyword(s):  
Organic Chemistry ◽  
Carbon Monoxide ◽  
Reducing Agent ◽  
Current Development ◽  
Efficient Route ◽  
Development Prospects

Carbon monoxide is a unique reducing agent that is only gaining popularity in organic chemistry. This review highlights the main approaches to the application of CO as a reducing agent, summarizes and critically analyzes the key trends in this field, and describes the current development prospects. Potentially the most selective and efficient route for the realization of these processes is demonstrated.

Palladium Nanowire Thin Films via Template Growth

2003 ◽  
Vol 775 ◽  
Author(s):  
Donghai Wang ◽  
David T. Johnson ◽  
Byron F. McCaughey ◽  
J. Eric Hampsey ◽  
Jibao He ◽  
...  
Keyword(s):  
Thin Film ◽  
Electron Microscopy ◽  
Thin Films ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Conductive Substrate ◽  
Palladium Nanowires ◽  
Efficient Route ◽  
Silica Thin Film

AbstractPalladium nanowires have been electrodeposited into mesoporous silica thin film templates. Palladium continually grows and fills silica mesopores starting from a bottom conductive substrate, providing a ready and efficient route to fabricate a macroscopic palladium nanowire thin films for potentially use in fuel cells, electrodes, sensors, and other applications. X-ray diffraction (XRD) and transmission electron microscopy (TEM) indicate it is possible to create different nanowire morphology such as bundles and swirling mesostructure based on the template pore structure.

Efficient Route for Synthesis of Enamines from 1,3-Alkyl-2-Thioxodihydropyrimidine-4,6(1H,5H)-dione Enols

2019 ◽  
Vol 16 (7) ◽  
pp. 538-540
Author(s):  
Anamika Sharma ◽  
Zainab M. Almarhoon ◽  
Ayman El-Faham ◽  
Beatriz G. de la Torre ◽  
Fernando Albericio
Keyword(s):  
Ammonium Chloride ◽  
Thiobarbituric Acid ◽  
Acid Acid ◽  
Efficient Route ◽  
Harsh Conditions

Here we report a greener approach for the synthesis of enamines from enols of 1,3-alkyl-2- thioxodihydropyrimidine-4,6(1H,5H)-dione (thiobarbituric acid) acid using ammonium chloride and ethanol as solvents. This protocol removes the need for catalysts or harsh conditions.

Utility of Ethylidenethiosemicarbazides in Heterocyclic Synthesis

2016 ◽  
Vol 14 (1) ◽  
pp. 3-21 ◽  
Author(s):  
Sayed M. Riyadh ◽  
Sobhi M. Gomha ◽  
Elmahdi A. Mahmmoud
Keyword(s):  
Heterocyclic Synthesis
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