A simple one-pot environmentally benign synthesis of ascorbic acid-capped CdSe nanoparticles at room temperature

2012 ◽  
Vol 75 ◽  
pp. 84-86 ◽  
Author(s):  
Oluwatobi S. Oluwafemi ◽  
Sandile P. Songca
Keyword(s):  
Ascorbic Acid ◽  
Room Temperature ◽  
Cdse Nanoparticles ◽  
Environmentally Benign ◽  
One Pot ◽  
Benign Synthesis

scholarly journals Environmentally Benign Synthesis of Tetra-Substituted Imidazoles through 4-Components Strategy Mediated by (S)-3-Methyl-1, 1-Diphenylbutane-1, 2-Diamine

2018 ◽  
Vol 10 (1) ◽  
pp. 39-50
Author(s):  
M. Rana ◽  
A. Rahman ◽  
P. K. Roy ◽  
H. N. Roy
Keyword(s):  
Cost Effectiveness ◽  
Environmentally Benign ◽  
One Pot ◽  
Benign Synthesis

(S)-3-Methyl-1, 1-diphenylbutane-1, 2-diamine has been found to be a mild and effective organocatalyst for one-pot 4-components synthesis of 1, 2, 4, 5-tetra-substituted imidazoles. The key benefits of this protocol is high yielding, cost effectiveness, easy purification and above all, environmentally benign.

Copper-Catalyzed Tandem Multi-Component Approach to 1,3-Oxazines at Room Temperature by Cross-Dehydrogenative Coupling Using Methanol as C1 Feedstock

Synlett ◽  
2018 ◽  
Vol 29 (09) ◽  
pp. 1171-1175 ◽  
Author(s):  
Paran Borpatra ◽  
Mohit Deb ◽  
Pranjal Baruah
Keyword(s):  
Carbon Source ◽  
Room Temperature ◽  
Inert Atmosphere ◽  
Environmentally Benign ◽  
Metal Catalyst ◽  
Methylene Carbon ◽  
One Pot ◽  
Dehydrogenative Coupling ◽  
Tert Butyl Hydroperoxide ◽  
Component Approach

A copper(II)-catalyzed multi-component one-pot approach for the synthesis of 1,3-oxazines at room temperature is reported here. Methanol is used as the solvent as well as the carbon source. The methylene carbon of the oxazine product comes from methanol via formaldehyde. tert-Butyl hydroperoxide is used as the oxidant. The reaction uses an environmentally benign metal catalyst and oxidant. No inert atmosphere or precaution is required for the reaction. Most importantly, the reaction avoids the use of carcinogenic formaldehyde.

scholarly journals ZnO-beta zeolite mediated simple and efficient method for the one-pot synthesis of quinoxaline derivatives at room temperature

2010 ◽  
Vol 8 (2) ◽  
pp. 320-325 ◽  
Author(s):  
Santosh Katkar ◽  
Pravinkumar Mohite ◽  
Lakshman Gadekar ◽  
Balasaheb Arbad ◽  
Machhindra Lande
Keyword(s):  
Efficient Method ◽  
Room Temperature ◽  
Environmentally Benign ◽  
Beta Zeolite ◽  
Reaction Conditions ◽  
One Pot ◽  
One Pot Synthesis ◽  
Quinoxaline Derivatives ◽  
The One ◽  
Work Up

AbstractA rapid and an efficient one-pot method for the synthesis of quinoxalines catalysed by ZnO-beta zeolite at room temperature is described. This environmentally benign method provides several advantages over methods that are currently employed such as a simple work-up, mild reaction conditions, good to excellent yields, and a process to recover and reuse the catalyst for several cycles with consistent activity.

Environmentally benign synthesis of methyl 6-amino-5-cyano-4-aryl-2,4-dihydropyrano[2,3-c]pyrazole-3-carboxylates using CeO2 nanoparticles as a reusable and robust catalyst

2016 ◽  
Vol 71 (11) ◽  
pp. 1135-1140 ◽  
Author(s):  
Javad Safaei-Ghomi ◽  
Mehrnoosh Asgari-Kheirabadi ◽  
Hossein Shahbazi-Alavi
Keyword(s):  
Condensation Reaction ◽  
Ceo2 Nanoparticles ◽  
Environmentally Benign ◽  
High Yield ◽  
Synthesis And Characterization ◽  
Dimethyl Acetylenedicarboxylate ◽  
One Pot ◽  
Efficient Catalyst ◽  
Benign Synthesis

AbstractIn this work, we report the synthesis and characterization of CeO2 nanoparticles as an efficient catalyst for the preparation of methyl 6-amino-5-cyano-4-aryl-2,4-dihydropyrano[2,3-c]pyrazole-3-carboxylates via one-pot four-component condensation reaction of dimethyl acetylenedicarboxylate, hydrazine hydrate, malononitrile, and aldehydes in aqueous medium. The use of a non-hazardous organic solvent, easy recovery of the catalyst, compatibility with various functional groups, and high yield of the products make the protocol attractive, greener, and economic.

Environmentally benign synthesis of high-quality, band gap-tunable, homogeneous Te/Se alloyed nanowires

RSC Advances ◽  
2015 ◽  
Vol 5 (85) ◽  
pp. 69268-69272 ◽  
Author(s):  
Chongjian Zhou ◽  
Ke Wang ◽  
Chaochao Dun ◽  
Qiong Wang ◽  
Zhongqi Shi ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Band Gap ◽  
Reducing Agent ◽  
Environmentally Benign ◽  
High Quality ◽  
Benign Synthesis

Ultrathin trigonal Te/Se alloyed nanowires with a tunable composition and band gap were fabricated using ascorbic acid as a nonhazardous reducing agent.

scholarly journals Chemoenzymatic one-pot reaction of noncompatible catalysts: combining enzymatic ester hydrolysis with Cu(i)/bipyridine catalyzed oxidation in aqueous medium

RSC Advances ◽  
2017 ◽  
Vol 7 (53) ◽  
pp. 33614-33626 ◽  
Author(s):  
Henning Sand ◽  
Ralf Weberskirch
Keyword(s):  
Aqueous Medium ◽  
Ester Hydrolysis ◽  
Environmentally Benign ◽  
One Pot ◽  
Benign Synthesis ◽  
Catalyzed Oxidation

Combination of a lipase (CALB) with a Cu/bipyridine catalyst for environmentally benign synthesis of aldehydes from their corresponding esters.

An Efficient One Pot, Multicomponent Synthesis of 1, 3-Thiazolidin-4-Ones Using L-Proline as Catalyst in Water

2021 ◽  
Vol 18 ◽  
Author(s):  
Yatin U. Gadkari ◽  
Rajesh D. Shanbhag ◽  
Vikas N. Telvekar
Keyword(s):  
Energy Efficient ◽  
Room Temperature ◽  
Thioglycolic Acid ◽  
Current Approach ◽  
Environmentally Benign ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
The One ◽  
Aqueous Conditions ◽  
Aromatic Heterocyclic

: An efficient methodology for the synthesis of 1,3-thiazolidin-4-ones using L-Proline as catalyst under aqueous conditions has been developed. The one-pot, multicomponent reaction of aromatic/heterocyclic aldehyde, aromatic amine and thioglycolic acid at room temperature give 1,3-thiazolidin-4-ones in moderate to good yields. Further, the current approach is notably greener than traditional methods with E-factor of 3.1 and the eco scale score of 96. The developed protocol offers several features, such as being simple, environmentally benign, energy-efficient, economical, mild conditions, shorter reaction time.

H2S bubbles-assisted synthesis of hollow Cu2−xSeyS1−y/reduced graphene oxide nanocomposites with tunable compositions and localized surface plasmon resonance

RSC Advances ◽  
2015 ◽  
Vol 5 (111) ◽  
pp. 91206-91212 ◽  
Author(s):  
Wen Long Li ◽  
Hong Yan Zou ◽  
Jing Lan ◽  
Qiang Wang ◽  
Yuan Fang Li ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Graphene Oxide ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Localized Surface Plasmon Resonance ◽  
Room Temperature ◽  
Localized Surface Plasmon ◽  
Gas Bubble ◽  
One Pot ◽  
Reduced Graphene

Homogeneous hollow Cu2−xSeyS1−y/rGO nanocomposites are controllably synthesized by a facile one-pot aqueous chemical approach via H2S gas bubble templates at room temperature, using a nonhazardous reducing agent, ascorbic acid.

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