scholarly journals Mechanisms of the Electrohydrodimerization of Activated Olefins. V. Substituted Benzylidene Meldrum's Acid Anion Radical Reactions in the Presence of Acetic Acid.

1982 ◽  
Vol 36b ◽  
pp. 260-262 ◽  
Author(s):  
Paul Margaretha ◽  
Vernon D. Parker ◽  
S.-O. Lawesson ◽  
Toshiaki Nishida ◽  
Curt R. Enzell ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Anion Radical ◽  
Radical Reactions ◽  
Meldrum's Acid ◽  
Acid Anion ◽  
Meldrum’S Acid ◽  
Activated Olefins

Synthesis of 3-Unsubstituted 4-Aryl-4,7-Dihydrothieno[2,3-b]Pyridine-2,5-Dicarboxylates / 3-Neaizvietotu 4-Aril-4,7-Dihidrotiēno[2,3-B]Piridīn-2,5-Dikarbonskābes Esteru Sintēze

2012 ◽  
Vol 51 (3) ◽  
pp. 257-263
Author(s):  
I. Adlere ◽  
A. Krauze ◽  
G. Duburs
Keyword(s):  
Acetic Acid ◽  
Aromatic Aldehyde ◽  
Glacial Acetic Acid ◽  
Ammonium Acetate ◽  
Sodium Ethoxide ◽  
Meldrum's Acid ◽  
Meldrum’S Acid ◽  
Methyl Acetoacetate

Novel 3-unsubstituted 4,7-dihydrothieno[2,3-b]pyridines were prepared by heterocyclization of methyl acetoacetate, an aromatic aldehyde and Meldrum’s acid in the presence of ammonium acetate in glacial acetic acid, followed by treatment of formed intermediates - pyridones with Wilsmeier-Haack reagent and with ethyl mercaptoacetate in the presence of sodium ethoxide in dry ethanol.

Reaction of Meldrum's Acid with an Aminomethylating Agent and Nitroalkanes

2017 ◽  
Vol 41 (2) ◽  
pp. 72-74 ◽  
Author(s):  
Jun-Wei Zhang ◽  
Jin-Hui Xue ◽  
Hua-He Zhang ◽  
Fan Xu ◽  
Qing-Guang Chen ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Weak Acid ◽  
Tandem Reaction ◽  
Meldrum's Acid ◽  
Meldrum’S Acid ◽  
One Pot ◽  
Isopropylidene Malonate ◽  
Meldrum's Acids ◽  
Prime 2

5-(2-Nitroalkyl)isopropylidene malonate and 5,5′-(2-nitro-1,3-propylidene)bis(isopropylidene malonate) were easily synthesised by one-pot tandem reaction of substituted Meldrum's acids with the aminomethylating agent (Me2NCH2OAc) and nitroalkanes in the presence of a weak acid, such as acetic acid.

ESR line shapes and methyl rotation in the acetic acid anion radical

1992 ◽  
Vol 168 (1) ◽  
pp. 91-98 ◽  
Author(s):  
Roland Erickson ◽  
Ulf Nordh ◽  
Nikolas P. Benetis ◽  
Anders Lund
Keyword(s):  
Acetic Acid ◽  
Anion Radical ◽  
Acid Anion ◽  
Line Shapes ◽  
Methyl Rotation

An Expeditious One-Pot Three-Component Synthesis of 4-Aryl-3,4-dihydrobenzo[g] quinoline-2,5,10(1H)-triones under Green Conditions

2020 ◽  
Vol 23 (23) ◽  
pp. 2626-2634
Author(s):  
Saiedeh Kamalifar ◽  
Hamzeh Kiyani
Keyword(s):  
Reaction Medium ◽  
Meldrum's Acid ◽  
Meldrum’S Acid ◽  
One Pot ◽  
One Pot Synthesis ◽  
Substituted Benzaldehydes ◽  
High Yields ◽  
First Time ◽  
Green Conditions

: An efficient and facial one-pot synthesis of 4-aryl-3,4-dihydrobenzo[g]quinoline- 2,5,10(1H)-triones was developed for the first time. The process proceeded via the three-component cyclocondensation of 2-amino-1,4-naphthoquinone with Meldrum’s acid and substituted benzaldehydes under green conditions. The fused 3,4-dihydropyridin-2(1H)- one-ring naphthoquinones have been synthesized with good to high yields in refluxing ethanol as a green reaction medium. This protocol is simple and effective as well as does not involve the assistance of the catalyst, additive, or hazardous solvents.

scholarly journals Cover Feature: Cp*Rh(III)‐Catalyzed C8 C−H Alkylation of Quinoline N ‐Oxides with Diazo Meldrum's Acid (Eur. J. Org. Chem. 3/2021)

2021 ◽  
Vol 2021 (3) ◽  
pp. 325-325
Author(s):  
Malcolm P. Huestis ◽  
Jean‐Philippe Leclerc ◽  
Robin Larouche‐Gauthier ◽  
Samuel Aubert‐Nicol ◽  
Arun Yadav ◽  
...  
Keyword(s):  
Meldrum's Acid ◽  
Meldrum’S Acid

Structural, Bioactivity, Molecular Docking, Spectroscopic and Electronic Properties of a Synthesized Meldrum's Acid Derivative

2021 ◽  
Vol 6 (19) ◽  
pp. 4698-4718
Author(s):  
Halil Gökce ◽  
Gökhan Alpaslan ◽  
Serdal Kaya ◽  
Nezaket Çakır
Keyword(s):  
Molecular Docking ◽  
Electronic Properties ◽  
Acid Derivative ◽  
Meldrum's Acid ◽  
Meldrum’S Acid
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