scholarly journals A Novel Four-Component Reaction between Secondary Amines and Hydroxybenzaldehydes with Isocyanides in Water: An Efficient One-Pot and Green Synthesis of Benzo[b]furan Derivatives

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Esmail Vessally ◽  
Ali Ramazani ◽  
Hana Shabrendi ◽  
Roghaie Ghadimi ◽  
Morteza Rouhani
Keyword(s):  
Green Synthesis ◽  
Secondary Amine ◽  
Room Temperature ◽  
Secondary Amines ◽  
The Novel ◽  
One Pot ◽  
Furan Derivatives

The novel benzo[b]furan derivatives,7a–i, were synthesized and characterized by Ugi four-component reaction between 2-hydroxybenzaldehyde derivative1, a secondary amine2, and an isocyanide3in water. Those reactions were carried out at room temperature with moderate to good yields in one pot.

scholarly journals One-pot green synthesis of gold and silver nanoparticles using Rosa canina L. extract

RSC Advances ◽  
2021 ◽  
Vol 11 (24) ◽  
pp. 14624-14631
Author(s):  
Pablo Eduardo Cardoso-Avila ◽  
Rita Patakfalvi ◽  
Carlos Rodríguez-Pedroza ◽  
Xochitl Aparicio-Fernández ◽  
Sofía Loza-Cornejo ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Aqueous Extract ◽  
Room Temperature ◽  
One Pot ◽  
Gold And Silver Nanoparticles ◽  
Rosa Canina ◽  
Capping Agents

Gold and silver nanoparticles were synthesized at room temperature using an aqueous extract from dried rosehips acting as reducing and capping agents with no other chemicals involved.

scholarly journals Towards the Green Synthesis of Furfuryl Alcohol in A One-Pot System from Xylose: A Review

Catalysts ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1101
Author(s):  
Gerardo Gómez Millán ◽  
Herbert Sixta
Keyword(s):  
Green Synthesis ◽  
Furfuryl Alcohol ◽  
The Novel ◽  
Economic Aspects ◽  
Complex Matrix ◽  
One Pot ◽  
Catalytic Systems ◽  
Heterogeneous Catalytic ◽  
Production Concept ◽  
Biobased Economy

In the pursuit of establishing a sustainable biobased economy, valorization of lignocellulosic biomass is increasing its value as a feedstock. Nevertheless, to achieve the integrated biorefinery paradigm, the selective fractionation of its complex matrix to its single constituents must be complete. This review presents and examines the novel catalytic pathways to form furfuryl alcohol (FuOH) from xylose in a one-pot system. This production concept takes on chemical, thermochemical and biochemical transformations or a combination of them. Still, the bulk of the research is targeted to develop heterogeneous catalytic systems to synthesize FuOH from furfural and xylose. The present review includes an overview of the economic aspects to produce this platform chemical in an industrial manner. In the last section of this review, an outlook and summary of catalytic processes to produce FuOH are highlighted.

Reaktive E=C(p-p)π-Systeme, XXVIII / Reactive E=C(p-p)π-Systems, XXVIII

1991 ◽  
Vol 46 (8) ◽  
pp. 978-984 ◽  
Author(s):  
Joseph Grobe ◽  
Duc Le Van ◽  
Thomas Großpietsch
Keyword(s):  
Room Temperature ◽  
The Other ◽  
Molar Ratio ◽  
Primary Amines ◽  
Addition Reactions ◽  
The Novel ◽  
One Pot ◽  
Cycloaddition Product ◽  
Tert Butylamine ◽  
The One

The reaction of perfluoro-2-phosphapropene F3CP=CF2 (1) with tert-butylamine or isopropylamine in a 1:3 molar ratio leads to the novel iminomethylene phosphanes F3CP=C=N(tBu) [(2), 30% yield] and F3CP=C=N(iPr) [(3), 5%], respectively. 2 slowly decomposes at room temperature giving tert-butylisonitrile and the cyclophosphanes (F3CP)n (n = 3, 4, 5). 3 is found to be less stable than 2 and for example is attacked by primary amines. The reaction of 2 with 2,3-dimethyl-1,3-butadiene or trimethylphosphane yields, on the one hand, the cycloaddition product of bis(trifluormethyl)diphosphene (4), and on the other hand, the phosphorus ylid Me3P=PCF3 (5) together with (tBu)NC.2 and 3, respectively, are not obtained from (F3C)2PH and the corresponding primary amines in a series of HF elimination and H2NR addition reactions. The main products formed from a 1:4 molar mixture of (F3C)2PH and H2N(iPr) in a one-pot procedure were shown to be the chiral phosphanes F3CP[NH(iPr)]C[=N(iPr)]H (6), F3CP[NH(iPr)]CHF2 (7) and F3CP[NH(iPr)]CH2F (8) (60:35:5). The corresponding reaction of (F3C)2PH with H2N(tBu) mainly yields the compound F3CP[NH(tBu)]CH2F (10).

A Convenient One-Pot Synthesis of Pyrazolo[3,4-d]pyrimidines and s-Triazolo[3,4-b][1,3,5]thiadiazines

1997 ◽  
Vol 52 (11) ◽  
pp. 1401-1412 ◽  
Author(s):  
Zeinab A. Hozien ◽  
Abd El-Wareth A. O. Sarhan ◽  
Hassan A. H. El-Sherief ◽  
Abdalla M. Mahmoud
Keyword(s):  
Mannich Reaction ◽  
Aromatic Amines ◽  
Good Yield ◽  
Room Temperature ◽  
Secondary Amines ◽  
One Pot ◽  
Aminomethyl Derivatives ◽  
Primary Aromatic Amines ◽  
The Mannich Reaction ◽  
Primary Aliphatic Amines

Abstract The reaction of 5-amino-3-aryl-1-phenylpyrazoles (1a-d) with formaldehyde and secondary amines in boiling ethanol gave the corresponding 4-alkylaminomethyl derivatives (2a-f) and bis-(4-pyrazolyl)methane (4a,b) as byproduct. Such reaction with primary aliphatic and aro­ matic amines at room temperature afforded 1,3,5-trisubstituted (5a-h) and 1,3.5,7-tetrasubstituted tetrahydropyrazolo[3,4-d]pyrimidines (8a-k) respectively in good yield. Similarily, the Mannich reaction of 5-mercapto-3-phenyl-1,2,4-triazole (9) with secondary amines, in boiling ethanol, and primary aromatic amines, at room temperature, gave 2 -substituted aminomethyl derivatives (10a-c) and (14a-g) respectively,while with primary aliphatic amines, p-toluidine and p-anisidine,at room temperature,and with other primary aromatic amines, in boiling ethanol, afforded the cyclized products 12,4-triazolo[3,4-b]thiadiazines (13a-e); (15f,g) and (15a-e), respectively.

Aqueous phase one-pot green synthesis of SnSe nanosheets in a protein matrix: negligible cytotoxicity and room temperature emission in the visible region

RSC Advances ◽  
2015 ◽  
Vol 5 (75) ◽  
pp. 61390-61397 ◽  
Author(s):  
Laboni Das ◽  
Apurav Guleria ◽  
Soumyakanti Adhikari
Keyword(s):  
Cyclic Voltammetry ◽  
Green Synthesis ◽  
Cho Cells ◽  
Room Temperature ◽  
Aqueous Media ◽  
Visible Region ◽  
Protein Matrix ◽  
Green Method ◽  
One Pot ◽  
Thermodynamic Feasibility

A rapid, facile, reproducible and green method for synthesizing SnSe nanosheets in aqueous media is reported. Cyclic voltammetry studies indicate better thermodynamic feasibility for reducing SnSe, while the nanomaterial is nontoxic up to a 100 μM concentration in CHO cells.

Green synthesis of novel 2-pyrazolyl-1,3-thiazolidine-4-ones using 2-oxoimidazolidine-1,3-disulfonic acid

2017 ◽  
Vol 23 (6) ◽  
Author(s):  
Mohammad Nikpassand ◽  
Leila Zare Fekri ◽  
Hasti Taherkhorsand
Keyword(s):  
Catalytic Activity ◽  
Green Synthesis ◽  
Organic Solvents ◽  
Room Temperature ◽  
Significant Loss ◽  
Disulfonic Acid ◽  
One Pot ◽  
Recoverable Catalyst

Abstract2-Oxoimidazolidine-1,3-disulfonic acid (OImDSA) is a recoverable catalyst for the synthesis of 1,3-thiazolidine-4-ones at room temperature in a one-pot procedure without using any organic solvents. Moreover, the catalyst can be easily recovered and recycled for five runs without significant loss of catalytic activity. The structures of the synthesized 1,3-thiazolidine-4-one compounds were confirmed by

Synthesis of Novel Derivatives of (Benz)Imidazo[2,1-b]Pyrimido[4,5-d][1,3]Thiazine

2017 ◽  
Vol 41 (12) ◽  
pp. 730-733 ◽  
Author(s):  
Marzieh Akbarzadeh ◽  
Mehdi Bakavoli ◽  
Hossein Eshghi ◽  
Ali Shiri
Keyword(s):  
Secondary Amines ◽  
The Novel ◽  
One Pot ◽  
The One ◽  
Derivatives Of

Several derivatives of the novel heterocyclic systems 2-substituted-imidazo- and benzimidazo-[2,1- b]pyrimido[4,5- d][1,3]thiazine have been synthesised through the one-pot cyclocondensation of 2,4-dichloro-5-(chloromethyl)-6-methylpyrimidine with imidazolidine-2-thione and 1 H-benzimidazole-2(3 H)-thione and subsequently substituted by various secondary amines in moderately good yields.

Catalyst- and solvent-free efficient access to N-alkylated amines via reductive amination using HBpin

2020 ◽  
Vol 18 (20) ◽  
pp. 3853-3857
Author(s):  
Vipin K. Pandey ◽  
Somnath Bauri ◽  
Arnab Rit
Keyword(s):  
Room Temperature ◽  
Reductive Amination ◽  
Solvent Free ◽  
Secondary Amines ◽  
One Pot ◽  
Efficient Access ◽  
Wide Range ◽  
General Method

A general method for catalyst- and solvent-free room temperature reductive amination has been developed and it efficiently delivers a wide range of sterically and electronically diverse secondary amines in one-pot.

Sign in / Sign up

Export Citation Format

Share Document