scholarly journals ZnCl2 loaded TiO2 nanomaterial: an efficient green catalyst to one-pot solvent-free synthesis of propargylamines

RSC Advances ◽  
2019 ◽  
Vol 9 (56) ◽  
pp. 32735-32743 ◽  
Author(s):  
Digambar B. Bankar ◽  
Ranjit R. Hawaldar ◽  
Sudhir S. Arbuj ◽  
Mansur H. Moulavi ◽  
Santosh T. Shinde ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Solvent Free ◽  
Economic Viability ◽  
One Pot ◽  
Environment Friendly ◽  
Green Catalyst ◽  
Sustainable Environment ◽  
Solvent Free Conditions ◽  
Solvent Free Synthesis

A one-pot green synthesis of propargylamines using nanostructured ZnCl2–TiO2 under solvent-free conditions has been effectively accomplished. The proposed reaction protocol is sustainable, environment-friendly and offers economic viability.

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.

Solvent-free synthesis of pyrrolo [2,1-α]isoquinolines via one-pot four-component reaction

2021 ◽  
Vol 18 ◽  
Author(s):  
Ali Aminkhani ◽  
Sina Sharifi
Keyword(s):  
Cycloaddition Reaction ◽  
Aromatic Aldehydes ◽  
Solvent Free ◽  
One Pot ◽  
Solvent Free Conditions ◽  
Solvent Free Synthesis

: An efficient four-component reaction to synthesize pyrrolo[2,1-a]isoquinolines from malononitrile, aromatic aldehydes, isoquinoline, and cyclohexyl isocyanide under solvent-free conditions is described. In a convenient, simple, and efficient one-pot procedure, the domino Knoevenagel-nucleophilic cycloaddition reaction affords excellent yields of products in less than 1 h.

scholarly journals One-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones catalyzed by SO3H@imineZCMNPs as a novel, efficient and reusable acidic nanocatalyst under solvent-free conditions

RSC Advances ◽  
2018 ◽  
Vol 8 (70) ◽  
pp. 40243-40251 ◽  
Author(s):  
Esmayeel Abbaspour-Gilandeh ◽  
Asieh Yahyazadeh ◽  
Mehraneh Aghaei-Hashjin
Keyword(s):  
Solvent Free ◽  
Magnetic Nanocatalyst ◽  
One Pot ◽  
Environment Friendly ◽  
Novel Environment ◽  
One Pot Synthesis ◽  
Solvent Free Conditions ◽  
Three Component Reaction

The synthesis of 3,4-dihydropyrimidin-2(1H)-one derivatives was accomplished via a three-component reaction in the presence of SO3H@imineZCMNPs as a novel, environment friendly, and reusable heterogeneous magnetic nanocatalyst under solvent-free conditions at 90 °C.

A One-Pot, Three-Component, Solvent-Free Synthesis of Novel 6H-Chromeno[3’,4’:5,6]Pyrido[2,3-d]Pyrimidine-Triones under Microwave Irradiation

2018 ◽  
Vol 42 (12) ◽  
pp. 604-607
Author(s):  
Loghman Firoozpour ◽  
Hoda Yahyavi ◽  
Ramona Ejtemaei ◽  
Setareh Moghimi ◽  
Alireza Foroumadi
Keyword(s):  
Microwave Irradiation ◽  
Efficient Method ◽  
Barbituric Acid ◽  
Reaction Times ◽  
Solvent Free ◽  
One Pot ◽  
Solvent Free Conditions ◽  
Substituted Benzaldehydes ◽  
High Yields ◽  
Solvent Free Synthesis

A green and efficient method for preparing novel heterocyclic systems is established through the reaction of differently substituted benzaldehydes, barbituric acid and 4-amino-2H-chromene-2-one under solvent-free conditions. This method affords 6H-chromeno[3’,4’:5,6] pyrido[2,3-d]pyrimidine-trione derivatives in high yields and short reaction times.

Glutamic Acid as an Efficient and Green Catalyst for the One-Pot Synthesis of 1,2,4,5-Tetrasubstituted Imidazoles under Thermal, Solvent-Free Conditions

2017 ◽  
Vol 41 (11) ◽  
pp. 673-675 ◽  
Author(s):  
Fahimeh Khazaee Feizabad ◽  
Khatereh Khandan-Barani ◽  
Alireza Hassanabadi
Keyword(s):  
Glutamic Acid ◽  
Reaction Times ◽  
Catalytic Amount ◽  
Solvent Free ◽  
One Pot ◽  
Green Catalyst ◽  
Aryl Aldehydes ◽  
Solvent Free Conditions ◽  
The One ◽  
Tetrasubstituted Imidazoles

A high-yielding synthesis of 1,2,4,5-tetrasubstituted imidazoles is described, involving the reaction of 1,2-dicarbonyl compounds, aryl aldehydes, amines and ammonium acetate in the presence of a catalytic amount of glutamic acid under thermal, solvent-free conditions. The salient features of this protocol are aerobic conditions, a non-hazardous green catalyst, short reaction times and mild reaction conditions.

scholarly journals Green Synthesis of Polysubstituted Quinolines and Xanthene Derivatives Promoted by Tartaric Acid as a Naturally Green Catalyst under Solvent-free Conditions

2018 ◽  
Vol 13 (1) ◽  
pp. 74-86 ◽  
Author(s):  
Farzaneh Mohamadpour ◽  
Malek Taher Maghsoodlou ◽  
Mojtaba Lashkari ◽  
Reza Heydari ◽  
Nourallah Hazeri
Keyword(s):  
Green Synthesis ◽  
Tartaric Acid ◽  
Solvent Free ◽  
Green Catalyst ◽  
Solvent Free Conditions ◽  
Xanthene Derivatives

scholarly journals One-Pot Synthesis of 1,8-Dioxodecahydroacridines and Polyhydroquinoline using 1,3-Di (bromo or chloro)-5,5-Dimethylhydantoin as a Novel and Green Catalyst under Solvent-Free Conditions

2017 ◽  
Vol 57 (4) ◽  
Author(s):  
Behrooz Maleki ◽  
Reza Tayebee ◽  
Mina Kermanian ◽  
Samaneh Sedigh Ashrafi
Keyword(s):  
Ethyl Acetoacetate ◽  
Ammonium Acetate ◽  
Solvent Free ◽  
Environmentally Benign ◽  
One Pot ◽  
Dicarbonyl Compounds ◽  
Green Catalyst ◽  
One Pot Synthesis ◽  
Solvent Free Conditions ◽  
Hantzsch Condensation

Solvent-free, one-pot synthesis of polyhdroquinoline and 1,8-dioxodecahydroacridine derivatives have been described via Hantzsch condensation of various aldehydes, ammonium acetate with (<em>i</em>) cyclic 1,3-dicarbonyl compounds and ethyl acetoacetate and (<em>ii</em>) cyclic 1,3-dicarbonyl compounds (2 mmoles) in a very simple, efficient, and environmentally benign method using 1,3-(dibromo or dichloro)-5,5-dimethylhydantoin as a cheap, non-toxic and neutral catalyst with up to excellent yields.

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