scholarly journals Multicomponent, Solvent-Free Synthesis of 1-Amidoalkyl-2-naphthols in the Presence of H3+xPMo12-xVxO40Heteropolyacids as Recyclable and Green Catalysts

2011 ◽  
Vol 8 (2) ◽  
pp. 523-528 ◽  
Author(s):  
Fatemeh F. Bamoharram ◽  
Majid M. Heravi ◽  
Mina Roshani ◽  
Mohammad J. Sane Charkhi
Keyword(s):  
Solvent Free ◽  
One Pot ◽  
Solvent Free Conditions ◽  
Recyclable Catalysts ◽  
Solvent Free Synthesis

A rapid and efficient one-pot method for the synthesis of 1-amidoalkyl-2-naphthols has been developed in the presence of mixed-addenda vanadium(V)-substituted polyoxomolybdates including: H3+xPMo12-xVxO40(x=1-3) heteropolyacids (HPAs) as recyclable catalysts under solvent-free conditions. In all cases heteropolyacid with x = 3 gave the highest yield 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.

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.

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 One-pot, solvent-free synthesis via Biginelli reaction: Catalyst-free and new recyclable catalysts

2015 ◽  
Vol 1 (1) ◽  
pp. 1081667 ◽  
Author(s):  
Mahmood Kamali ◽  
Abbas Shockravi ◽  
Maryam Saghafi Doost ◽  
Seyyed Emad Hooshmand
Keyword(s):  
Biginelli Reaction ◽  
Solvent Free ◽  
One Pot ◽  
Catalyst Free ◽  
Recyclable Catalysts ◽  
Solvent Free Synthesis

Highly Efficient, One-Pot, Solvent-Free Synthesis of Highly Substituted Imidazoles Using Molecular Iodine as Catalyst

2011 ◽  
Vol 396-398 ◽  
pp. 1871-1874
Author(s):  
Yi Ming Ren ◽  
Chun Cai
Keyword(s):  
Molecular Iodine ◽  
Solvent Free ◽  
One Pot ◽  
Product Yields ◽  
Highly Efficient ◽  
One Pot Synthesis ◽  
Solvent Free Conditions ◽  
Solvent Free Synthesis ◽  
Tetrasubstituted Imidazoles

Highly efficient, one-pot synthesis of 2,4,5-trisubstituted and 1,2,4,5-tetrasubstituted imidazoles under solvent-free conditions using molecular iodine as the catalyst is described with excellent product yields.

Microwave-Expedited One-Pot, Two-Component, Solvent-Free Synthesis of Functionalized Pyrimidines

2007 ◽  
Vol 60 (2) ◽  
pp. 120 ◽  
Author(s):  
Shyamaprosad Goswami ◽  
Subrata Jana ◽  
Swapan Dey ◽  
Avijit Kumar Adak
Keyword(s):  
Microwave Irradiation ◽  
Ethyl Cyanoacetate ◽  
Solvent Free ◽  
Combinatorial Type ◽  
One Pot ◽  
Dicarbonyl Compounds ◽  
Solvent Free Conditions ◽  
Two Component ◽  
One Step ◽  
Solvent Free Synthesis

The synthesis of a series of diversely substituted pyrimidines under solvent-free conditions in good yields is described. Under microwave irradiation, a variety of nucleophilic substrates containing the N–C–N unit with β-dicarbonyl compounds, ethyl cyanoacetate, malononitrile, and chalcones was cyclized to give pyrimidines. A combinatorial type approach for a one-step synthesis has been developed where a ring-closing condensation is followed by spontaneous aromatization to afford 28 functionalized and aryl/alkyl substituted pyrimidines.

Solvent-free Synthesis of 1,2-Disubstituted Derivatives of 1,2- Dihydroisoquinoline, 1,2-Dihydroquinoline and 1,2-Dihydropyridine

2013 ◽  
Vol 68 (7) ◽  
pp. 818-822 ◽  
Author(s):  
Rahimeh Hajinasiri ◽  
Sobhan Rezayati
Keyword(s):  
Room Temperature ◽  
Solvent Free ◽  
Reaction Conditions ◽  
One Pot ◽  
Efficient Approach ◽  
Dialkyl Acetylenedicarboxylates ◽  
Solvent Free Conditions ◽  
Three Component Reaction ◽  
Derivatives Of ◽  
Solvent Free Synthesis

A one-pot and efficient approach to the synthesis of dialkyl 2-[1-[(alkoxycarbonyl)anilino]-2(1H)- (isoquinolin-2-yl) (or -quinolin-1-yl or -pyridin-1-yl)]-2-butenedioates is described. This method involves a three-component reaction between isoquinoline, quinoline or pyridine, dialkyl acetylenedicarboxylates and N-phenylcarbamates under solvent-free conditions, without using any catalyst and at room temperature. The mild reaction conditions and good yields of the products exhibit the synthetic advantage of this method.

Solvent-free Synthesis of Novel Benzothiazole-substituted 4-Thiazolidinones Using Nano Silica-bonded 5-n-Propyl-octahydro-pyrimido[1,2-a]azepinium Chloride as Catalyst

2014 ◽  
Vol 67 (11) ◽  
pp. 1646 ◽  
Author(s):  
Robabeh Baharfar ◽  
Narges Shariati
Keyword(s):  
Acetic Acid ◽  
Solvent Free ◽  
Triphenyl Phosphite ◽  
Nano Silica ◽  
One Pot ◽  
Solvent Free Conditions ◽  
The One ◽  
High Yields ◽  
Solvent Free Synthesis

A series of novel benzothiazole-substituted 4-thiazolidinones were synthesised by the one-pot reaction of rhodanine-3-acetic acid derivatives, 2-aminothiophenol, and triphenyl phosphite in the presence of nano silica-bonded 5-n-propyl-octahydro-pyrimido[1,2-a]azepinium chloride (NSB-DBU) as heterogeneous reusable nanocatalyst under solvent-free conditions in high yields.

Sign in / Sign up

Export Citation Format

Share Document