On the condensation of ethyl cyanoacetate with some cyclic anhydrides and imides

1950 ◽  
Vol 15 ◽  
pp. 99-106 ◽  
Author(s):  
F. Šorm ◽  
J. Gut ◽  
P. Kaňkovský
Keyword(s):  
Ethyl Cyanoacetate ◽  
Cyclic Anhydrides

Reactions of 3-cyano-1-methylquinolinium methyl sulphate with some C-acids and with p-nitroaniline

1981 ◽  
Vol 46 (2) ◽  
pp. 503-505 ◽  
Author(s):  
Oldřich Kocián ◽  
Miloslav Ferles
Keyword(s):  
Sodium Methoxide ◽  
Ethyl Cyanoacetate ◽  
Derivatives Of

The action of malononitrile, ethyl cyanoacetate, dibenzoylmethane and/or p-nitroaniline on compound I in the presence of sodium methoxide gives rise to derivatives of 3-cyano-1-methyl-1,4-dihydroquinoline, II and III

scholarly journals Organo-Catalyzed/Initiated Ring Opening Co-Polymerization of Cyclic Anhydrides and Epoxides: an Emerging Story

2021 ◽  
Author(s):  
Franck Le Bideau ◽  
Samuel Dagorne ◽  
Samir Messaoudi ◽  
Françoise Dumas ◽  
Gaël Printz ◽  
...  
Keyword(s):  
Ring Opening ◽  
Everyday Lives ◽  
Cyclic Anhydrides

Polyesters are omnipresent in our everyday lives and their synthesis via eco-friendly methods is becoming a major challenge today. The co-polymerization of cyclic anhydrides and epoxides was first reported by...

scholarly journals Ring-Opening Copolymerization of Cyclohexene Oxide and Cyclic Anhydrides Catalyzed by Bimetallic Scorpionate Zinc Catalysts

Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1651
Author(s):  
Felipe de la Cruz-Martínez ◽  
Marc Martínez de Sarasa Buchaca ◽  
Almudena del Campo-Balguerías ◽  
Juan Fernández-Baeza ◽  
Luis F. Sánchez-Barba ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Reaction Mechanism ◽  
Catalytic System ◽  
Phthalic Anhydride ◽  
Ring Opening ◽  
High Selectivity ◽  
Zinc Complexes ◽  
Cyclohexene Oxide ◽  
Reaction Conditions ◽  
Cyclic Anhydrides

The catalytic activity and high selectivity reported by bimetallic heteroscorpionate acetate zinc complexes in ring-opening copolymerization (ROCOP) reactions involving CO2 as substrate encouraged us to expand their use as catalysts for ROCOP of cyclohexene oxide (CHO) and cyclic anhydrides. Among the catalysts tested for the ROCOP of CHO and phthalic anhydride at different reaction conditions, the most active catalytic system was the combination of complex 3 with bis(triphenylphosphine)iminium as cocatalyst in toluene at 80 °C. Once the optimal catalytic system was determined, the scope in terms of other cyclic anhydrides was broadened. The catalytic system was capable of copolymerizing selectively and efficiently CHO with phthalic, maleic, succinic and naphthalic anhydrides to afford the corresponding polyester materials. The polyesters obtained were characterized by spectroscopic, spectrometric, and calorimetric techniques. Finally, the reaction mechanism of the catalytic system was proposed based on stoichiometric reactions.

scholarly journals Benzotriazol-1-yl-Acetone as a Building Block in Heterocyclic Chemistry: A Route to Benzotriazolylpyridazines, Benzotriazolylphthalazines and Benzotriazolylpyrazolo[5,1-c]-1,2,4-triazines

1999 ◽  
Vol 23 (11) ◽  
pp. 648-649
Author(s):  
Abdul Aziz Al-Naggar ◽  
Mervat Mohammed Abdel-Khalik ◽  
Mohammed Hilmy Elnagdi
Keyword(s):  
Double Bond ◽  
Building Block ◽  
Ethyl Cyanoacetate ◽  
Diazonium Salts ◽  
Heterocyclic Chemistry

Benzotriazolylacetone is coupled with aromatic diazonium salts to yield arylhydrazones, which can be condensed with ethyl cyanoacetate yielding pyridazinones whose reactivity towards activated double bond systems is investigated.

scholarly journals Triethylborane-Assisted Synthesis of Random and Block Poly(ester-carbonate)s through One-Pot Terpolymerization of Epoxides, CO2, and Cyclic Anhydrides

2021 ◽  
Vol 54 (6) ◽  
pp. 2711-2719
Author(s):  
Vamshi K. Chidara ◽  
Senthil K. Boopathi ◽  
Nikos Hadjichristidis ◽  
Yves Gnanou ◽  
Xiaoshuang Feng
Keyword(s):  
One Pot ◽  
Cyclic Anhydrides

A New Approach for the Synthesis of Some Pyridine and Pyridone Derivatives

1983 ◽  
Vol 38 (12) ◽  
pp. 1690-1694 ◽  
Author(s):  
O. H. Hishmat ◽  
M. M. Y. Zohair ◽  
J. A. A. Miky
Keyword(s):  
Ammonium Acetate ◽  
Ethyl Cyanoacetate ◽  
New Approach

Both visnaginone and khellinone react with malononitrile, ethyl cyanoacetate or cyanoacetamide in presence of ammonium acetate to give substituted furobenzopyrans or furobenzopyridones.However, the reaction of visnaginone and khellinone with aldehydes, and malononitrile in presence of ammonium acetate leads to the formation of the corresponding 2-amino-4,6-disubstituted pyridine 3-carbonitriles. The latter compounds are also obtained by treating the respective chalcones with malononitrile and ammonium acetate.3-Substituted 1,3-diketobutyrates form with malononitrile or with cyanoacetamide and ammonium acetate the 2-amino-4,6-disubstituted pyridine-3-carbonitriles or the 4,6-di-substituted cyanopyridones, respectively

Sign in / Sign up

Export Citation Format

Share Document