Cross-aldol Condensation of Cycloalkanones and Aromatic Aldehydes in the Presence of Nanoporous Silica-based Sulfonic Acid (SiO2-Pr-SO3H) under Solvent Free Conditions

2009 ◽  
Vol 27 (8) ◽  
pp. 1537-1542 ◽  
Author(s):  
Ghodsi MOHAMMADI ZIARANI ◽  
Alireza BADIEI ◽  
Alireza ABBASI ◽  
Zahra FARAHANI
Keyword(s):  
Sulfonic Acid ◽  
Aldol Condensation ◽  
Aromatic Aldehydes ◽  
Solvent Free ◽  
Nanoporous Silica ◽  
Solvent Free Conditions

Synthesis of renewable aviation fuel additives with aromatic aldehydes and methyl isobutyl ketone under solvent-free conditions

2021 ◽  
Author(s):  
Fengan Han ◽  
Jingyuan Xu ◽  
Guangyi Li ◽  
Jilei Xu ◽  
Aiqin Wang ◽  
...  
Keyword(s):  
Methyl Isobutyl Ketone ◽  
Aldol Condensation ◽  
Freezing Point ◽  
Aromatic Aldehydes ◽  
Solvent Free ◽  
Aviation Fuel ◽  
Fuel Additives ◽  
Methyl Isobutyl ◽  
Isobutyl Ketone ◽  
Solvent Free Conditions

High-density and low freezing point dicycloalkanes were synthesized by the aldol condensation of methyl isobutyl ketone with aromatic aldehydes followed by hydrodeoxygenation under solvent-free conditions.

scholarly journals One-pot Synthesis of Benzo[c]acridine Derivatives Using SBA-Pr-SO3H as Nano Catalyst

2017 ◽  
Vol 58 (2) ◽  
Author(s):  
Ghodsi Mohammadi Ziarani ◽  
Somayeh Mousavi ◽  
Mahshid Rahimifard ◽  
Alireza Badiei
Keyword(s):  
Sulfonic Acid ◽  
Condensation Reaction ◽  
Acid Catalyst ◽  
Aromatic Aldehydes ◽  
Solvent Free ◽  
One Pot ◽  
Acridine Derivatives ◽  
One Pot Synthesis ◽  
Nano Catalyst ◽  
Solvent Free Conditions

One-pot synthesis of benzo[<em>c</em>]acridine derivatives via the three-component condensation reaction of aromatic aldehydes, 1-naphtylamine, and dimedone using sulfonic acid functionalized SBA-15 (SBA-Pr-SO<sub>3</sub>H) as nanoporous acid catalyst under solvent-free conditions was studied. This reaction is an efficient, green and  environmentally friendly procedure.

β-Cyclodextrin-butane sulfonic acid: an efficient and reusable catalyst for the multicomponent synthesis of 1-amidoalkyl-2-naphthols under solvent-free conditions

2015 ◽  
Vol 17 (5) ◽  
pp. 3141-3147 ◽  
Author(s):  
Kai Gong ◽  
Hualan Wang ◽  
Xiaoxue Ren ◽  
Ying Wang ◽  
Jinghua Chen
Keyword(s):  
Sulfonic Acid ◽  
Aromatic Aldehydes ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Solvent Free Conditions

β-Cyclodextrin-butane sulfonic acid efficiently catalyzed the synthesis of 1-amidoalkyl-2-naphthols by a one-pot three component condensation of aromatic aldehydes, β-naphthol and amides under solvent-free conditions.

scholarly journals (+)-CSA Catalyzed Multicomponent Synthesis of 1-[(1,3-Thiazol-2-ylamino)methyl]-2-naphthols and Their Ring-Closure Reaction under Ultrasonic Irradiation

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Emel Pelit ◽  
Zuhal Turgut
Keyword(s):  
Ultrasonic Irradiation ◽  
Sulfonic Acid ◽  
Aromatic Aldehydes ◽  
Solvent Free ◽  
Ring Closure ◽  
Multicomponent Synthesis ◽  
Effective Catalyst ◽  
Solvent Free Conditions ◽  
Naphthol Derivatives

New 1-[(1,3-thiazol-2-ylamino)methyl]-2-naphthols were obtained by condensation of 2-aminothiazole, aromatic aldehydes, and 2-naphthol in the presence of (+)-camphor-10-sulfonic acid ((+)-CSA) as an effective catalyst under ultrasound-promoted solvent-free conditions. The 1-[(1,3-thiazol-2-ylamino)methyl]-2-naphthol derivatives were converted in ring-closure reaction with formaldehyde to the corresponding naphthoxazine derivatives.

scholarly journals Solvent-Free Synthesis of 1,8-Dioxo-octahydroxanthenes and 14-Aryl-14H-dibenzo[a,j]xanthenes using Saccharin Sulfonic Acid as an Efficient and Green Catalyst

2012 ◽  
Vol 9 (4) ◽  
pp. 1854-1863 ◽  
Author(s):  
Abdolkarim Zare ◽  
Mohammad Mokhlesi ◽  
Alireza Hasaninejad ◽  
Tahereh Hekmat-Zadeh
Keyword(s):  
Sulfonic Acid ◽  
Reaction Times ◽  
Aromatic Aldehydes ◽  
Solvent Free ◽  
Organic Transformations ◽  
One Pot ◽  
Green Catalyst ◽  
Highly Efficient ◽  
Solvent Free Conditions ◽  
Solvent Free Synthesis

Saccharin sulfonic acid (SaSA) is utilized as a highly efficient, green and inexpensive sulfonic acid-containing catalyst for the following one-pot multi-component organic transformations: (i) the condensation of dimedone (2 eq.) with aromatic aldehydes (1 eq.) leading to 1,8-dioxo-octahydroxanthenes, and (ii) the reaction of 2-naphthol (2 eq.) with arylaldehydes (1 eq.) leading to 14-aryl-14H-dibenzo[a,j]xanthenes. In these protocols, the title compounds are produced in high to excellent yields and in relatively short reaction times under solvent-free conditions.

Chlorosulfonic Acid Supported Piperidine-4-carboxylic Acid (PPCA) Functionalized Fe3O4 Nanoparticles (Fe3O4-PPCA): The Efficient, Green and Reusable Nanocatalyst for the Synthesis of Pyrazolyl Coumarin Derivatives under Solvent-Free Conditions

2019 ◽  
Vol 22 (2) ◽  
pp. 123-128
Author(s):  
Setareh Habibzadeh ◽  
Hassan Ghasemnejad-Bosra ◽  
Mina Haghdadi ◽  
Soheila Heydari-Parastar
Keyword(s):  
Carboxylic Acid ◽  
Fe3o4 Nanoparticles ◽  
High Efficiency ◽  
Reaction Times ◽  
Chlorosulfonic Acid ◽  
Aromatic Aldehydes ◽  
Solvent Free ◽  
Magnetic Nanocatalyst ◽  
One Pot ◽  
Solvent Free Conditions

Background: In this study, we developed a convenient methodology for the synthesis of coumarin linked to pyrazolines and pyrano [2,3-h] coumarins linked to 3-(1,5-diphenyl-4,5- dihydro-1H-pyrazol-3-yl)-chromen-2-one derivatives using Chlorosulfonic acid supported Piperidine-4-carboxylic acid (PPCA) functionalized Fe3O4 nanoparticles (Fe3O4-PPCA) catalyst. Materials and Methods:: Fe3O4-PPCA was investigated as an efficient and magnetically recoverable Nanocatalyst for the one-pot synthesis of substituted coumarins from the reaction of coumarin with a variety of aromatic aldehydes in high to excellent yield at room temperature under solvent-free conditions. The magnetic nanocatalyst can be easily recovered by applying an external magnet device and reused for at least 10 reaction runs without considerable loss of reactivity. Results and Conclusion: The advantages of this protocol are the use of commercially available materials, simple and an inexpensive procedure, easy separation, and an eco-friendly procedure, and it shows good reaction times, good to high yields, inexpensive and practicability procedure, and high efficiency.

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