scholarly journals In situ synthesis of SO3H supported Fe3O4@resorcinol–formaldehyde resin core/shell and its catalytic evaluation towards the synthesis of hexahydroquinoline derivatives in green conditions

RSC Advances ◽  
2020 ◽  
Vol 10 (68) ◽  
pp. 41703-41712
Author(s):  
Aliyeh Barzkar ◽  
Alireza Salimi Beni
Keyword(s):  
Ammonium Acetate ◽  
Aromatic Aldehydes ◽  
In Situ Synthesis ◽  
Formaldehyde Resin ◽  
One Pot ◽  
Resorcinol Formaldehyde ◽  
Resin Core ◽  
One Pot Condensation ◽  
Green Conditions

A novel core@double-shell acidic nanocatalyst (Fe3O4@SiO2@RF–SO3H) was prepared, characterized and applied in catalytic one-pot condensation between aromatic aldehydes, dimedone, malononitrile, and ammonium acetate for synthesis of hexahydroquinoline derivatives.

Fe3O4@chitosan nanoparticles: a valuable heterogeneous nanocatalyst for the synthesis of 2,4,5-trisubstituted imidazoles

RSC Advances ◽  
2014 ◽  
Vol 4 (40) ◽  
pp. 20932-20939 ◽  
Author(s):  
Zohre Zarnegar ◽  
Javad Safari
Keyword(s):  
Aqueous Solution ◽  
Catalytic Activity ◽  
Ammonium Acetate ◽  
Chitosan Nanoparticles ◽  
One Pot ◽  
Heterogeneous Nanocatalyst ◽  
Aryl Aldehydes ◽  
One Pot Condensation ◽  
Co Precipitation

Chitosan-coated Fe3O4 nanoparticles (Fe3O4@CS) were prepared simply through in situ co-precipitation of Fe2+ and Fe3+ ions via NH4OH in an aqueous solution of chitosan and their catalytic activity was investigated in the synthesis of 2,4,5-trisubstituted imidazoles by a one-pot condensation of benzil derivatives, aryl aldehydes and ammonium acetate in EtOH.

One pot in situ synthesis of nano Au–Pd core-shells embedded on reduced graphene oxide for the oxygen reduction reaction

2021 ◽  
Vol 264 ◽  
pp. 114924
Author(s):  
Periyasami Gnanaprakasam ◽  
Aruchamy Gowrisankar ◽  
Shanmugam Senthilkumar ◽  
Arumugam Murugadoss ◽  
Thangavelu Selvaraju ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Reduction Reaction ◽  
In Situ Synthesis ◽  
One Pot ◽  
Reduced Graphene

TiO2 Nanoparticles as an Efficient Catalyst for the One-pot Preparation of Tetrahydrobenzo[c]acridines in Aqueous Media

2013 ◽  
Vol 68 (4) ◽  
pp. 362-366 ◽  
Author(s):  
Shahrzad Abdolmohammadi ◽  
Mahdieh Mohammadnejad ◽  
Faezeh Shafaei
Keyword(s):  
Ammonium Acetate ◽  
Titanium Dioxide Nanoparticles ◽  
Aqueous Media ◽  
Aromatic Aldehydes ◽  
Catalytic Amount ◽  
One Pot ◽  
Efficient Catalyst ◽  
The One ◽  
Work Up ◽  
Operational Simplicity

A series of tetrahydrobenzo[c]acridinone derivatives have been prepared by a one-pot fourcomponent reaction of 1-naphthol, aromatic aldehydes, dimedone, and ammonium acetate in aqueous media using a catalytic amount of titanium dioxide nanoparticles (TiO2 NPs). The advantages of this novel protocol include the excellent yields, operational simplicity, short reaction time, easy work-up, reusability of the catalyst and an environmentally friendly procedure.

scholarly journals The first in situ synthesis of 1,3-dioxan-5-one derivatives and their direct use in Claisen-Schmidt reactions

2019 ◽  
Vol 25 (1) ◽  
pp. 85-90 ◽  
Author(s):  
M. Javad Poursharifi ◽  
Mohammad M. Mojtahedi ◽  
M. Saeed Abaee ◽  
Mohammad M. Hashemi
Keyword(s):  
Acetic Acid ◽  
Aromatic Aldehydes ◽  
In Situ Synthesis ◽  
Stepwise Procedures ◽  
Time Periods ◽  
High Yields ◽  
Short Time ◽  
Direct Use ◽  
Derivatives Of

AbstractA method is developed for in situ generation of 1,3-dioxan-5-one derivatives 2. These compounds are simple precursors for accessing carbohydrate structures and previously had to be produced via stepwise procedures using excessive amounts of reagents. In the present work, three different derivatives of 2 were synthesized via the reaction of trialkoxyalkanes with dihydroxyacetone dimer 1 in the presence of acetic acid as the catalyst. In the same pot, derivatives of 2 were reacted with aromatic aldehydes and 30 mol% of pyrrolidine to obtain high yields of the respective bischalcones 3 within short time periods.

An efficient, one-pot three-component synthesis of 4H-thiazolo[3,2-a][1,3,5]triazin-6-one derivatives

2016 ◽  
Vol 22 (1) ◽  
pp. 43-47
Author(s):  
Mustafa T. Ubeid ◽  
Hamdy K. Thabet ◽  
Said A. El-Feky
Keyword(s):  
Ammonium Acetate ◽  
Thioglycolic Acid ◽  
Condensation Reaction ◽  
One Pot ◽  
Spectroscopic Analyses ◽  
One Pot Condensation

AbstractA simple and efficient protocol was established to synthesize thiazolo[3,2-a][1,3,5]triazin-6-ones via three-component one-pot condensation reaction of readily available thioglycolic acid or ethyl thioglycolate, aldehydes or ketones and dicyandiamide in the presence of ammonium acetate. All of the newly synthesized compounds were characterized by spectroscopic analyses.

One Pot Three Component Synthesis of 9-arylpolyhydroacridine Derivatives in an Ionic Liquid Medium

2005 ◽  
Vol 2005 (9) ◽  
pp. 600-602 ◽  
Author(s):  
Yu-Ling Li ◽  
Mei-Mei Zhang ◽  
Xiang-Shan Wang ◽  
Da-Qing Shi ◽  
Shu-Jiang Tu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Ammonium Acetate ◽  
Aromatic Aldehydes ◽  
Environmentally Benign ◽  
Reaction Conditions ◽  
One Pot ◽  
High Yields ◽  
Work Up ◽  
Ionic Liquid Medium

In this paper the preparation of 3,3,6,6-tetramethyl-9-aryl-1,2,3,4,5,6,7,8,9,10- decahydroacridin-1,8-dione derivatives from aromatic aldehydes, 5,5-dimethyl-1,3- cyclohexanedione and ammonium acetate in ionic liquids [bmim+][BF4-] is described. This new method has the advantages of easier work-up, milder reaction conditions, high yields and an environmentally benign procedure compared with other methods.

Direct growth of layered intercalation compounds via single step one-pot in situ synthesis

2015 ◽  
Vol 51 (57) ◽  
pp. 11398-11400 ◽  
Author(s):  
Jingfang Yu ◽  
Lichen Xiang ◽  
Benjamin R. Martin ◽  
Abraham Clearfield ◽  
Luyi Sun
Keyword(s):  
Synthesis Method ◽  
Layered Materials ◽  
Single Step ◽  
In Situ Synthesis ◽  
Intercalation Compounds ◽  
One Pot ◽  
Wide Range ◽  
Direct Growth

A single step one-pot in situ synthesis method was developed to directly grow layered intercalation compounds. This methodology is expected to be applicable to a wide range of layered materials.

scholarly journals A Facile Synthesis ofN-H- andN-Substituted Acridine-1,8-diones under Sonic Condition

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
S. Sudha ◽  
M. A. Pasha
Keyword(s):  
Ammonium Nitrate ◽  
Energy Efficient ◽  
Aromatic Amines ◽  
Ammonium Acetate ◽  
Aromatic Aldehydes ◽  
Ceric Ammonium Nitrate ◽  
Facile Synthesis ◽  
One Pot

Synthesis of an assembly of structurally importantN-H- andN-substituted acridine-1,8-diones by CAN (ceric ammonium nitrate) catalysed one-pot four-component reaction of electron-deficient and electron-rich aromatic aldehydes and aromatic amines or ammonium acetate and dimedone or cyclohexyl-1,3-diones at 26°C under sonic condition is reported. The method is clean and energy efficient as it uses a greener method and an eco-friendly catalyst.

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