Gum arabic-OPO3H2 as a new natural-based green catalyst for the one-pot pseudo-four-component synthesis of naphtho[1,2-e][1,3]oxazines

Abstract A straightforward, one-pot multicomponent synthesis of 1-(benzothiazolylamino)methyl-2-naphthol derivatives was achieved by condensation of 2-naphthol, aldehydes, and 2- aminobenzothiazole catalyzed by a small amount of citric acid, which acts as a benign enviermentally catalyst. Mild conditions with excellent yields and a simple isolation procedure are noteworthy advantages of this method.

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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

Journal of Chemical Research ◽

10.3184/174751917x15105690662854 ◽

2017 ◽

Vol 41 (11) ◽

pp. 673-675 ◽

Cited By ~ 1

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.

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Ultrasound-promoted an efficient method for the one-pot synthesis of indeno fused pyrido[2,3-d]pyrimidines catalyzed by H3PW12O40 functionalized chitosan@Co3O4 as a novel and green catalyst

Journal of Organometallic Chemistry ◽

10.1016/j.jorganchem.2018.10.028 ◽

2019 ◽

Vol 880 ◽

pp. 75-82 ◽

Cited By ~ 5

Author(s):

Javad Safari ◽

Mona Tavakoli ◽

Mohammad Ali Ghasemzadeh

Keyword(s):

Efficient Method ◽

One Pot ◽

Green Catalyst ◽

One Pot Synthesis ◽

The One

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Theophylline as a new and green catalyst for the one-pot synthesis of spiro[benzo[ a ]pyrano[2,3- c ]phenazine] and benzo[ a ]pyrano[2,3- c ]phenazine derivatives under solvent-free conditions

Chinese Chemical Letters ◽

10.1016/j.cclet.2016.09.016 ◽

2017 ◽

Vol 28 (2) ◽

pp. 446-452 ◽

Cited By ~ 25

Author(s):

Afshin Yazdani-Elah-Abadi ◽

Malek-Taher Maghsoodlou ◽

Razieh Mohebat ◽

Reza Heydari

Keyword(s):

Solvent Free ◽

One Pot ◽

Green Catalyst ◽

One Pot Synthesis ◽

Solvent Free Conditions ◽

The One

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Silica Nanoparticles from Rice Husk Ash: A Green Catalyst for the One-Pot Three-Component Synthesis of Benzo[B]Furan Derivatives

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.875-877.202 ◽

2014 ◽

Vol 875-877 ◽

pp. 202-207 ◽

Cited By ~ 3

Author(s):

Ali Ramazani ◽

Morteza Rouhani ◽

Sang Woo Joo

Keyword(s):

Silica Nanoparticles ◽

Rice Husk ◽

Room Temperature ◽

Rice Husk Ash ◽

One Pot ◽

Furan Derivatives ◽

Green Catalyst ◽

Iminium Ion ◽

The One ◽

High Yields

Reaction of an isocyanide with an iminium ion intermediate, formed by reaction between an electronpoor 2-hydroxybenzaldehyde derivative and a secondary amine in the presence of silica nanoparticles proceeds smoothly at room temperature to afford benzo [b] furan derivatives in high yields.

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