scholarly journals Green-chemistry Compatible Approach to TiO2-supported PdAu Bimetallic Nanoparticles for Solvent-free 1-Phenylethanol Oxidation under Mild Conditions

2015 ◽  
Vol 7 (3) ◽  
pp. 307-315 ◽  
Author(s):  
Jian-Bing Chang ◽  
Chang-Hai Liu ◽  
Jie Liu ◽  
Yu-Yan Zhou ◽  
Xu Gao ◽  
...  
Keyword(s):  
Green Chemistry ◽  
Bimetallic Nanoparticles ◽  
Solvent Free ◽  
Mild Conditions

scholarly journals Cleaner and Efficient Green Chemistry Synthesis of N,N´-Dibenzyl or N,N´-(2-Hydroxybenzyl)-Ethane-1,2-Diamine,-Propane-1,3-Diamine and -1,3-Diamino-2-Propanol

2016 ◽  
Vol 8 (4) ◽  
pp. 62 ◽  
Author(s):  
Augusto Rivera ◽  
Ingrid Miranda-Carvajal ◽  
Jaime Ríos-Motta
Keyword(s):  
Green Chemistry ◽  
Schiff Bases ◽  
Sodium Borohydride ◽  
Good Yield ◽  
Solvent Free ◽  
Mild Conditions ◽  
Excellent Yield ◽  
High Yields ◽  
Work Up

<p>An efficient and highly eco-friendly protocol for the preparation of <em>N,N´</em>-dibenzyl or <em>N,N´</em>-(2-hydroxybenzyl)diamines via the reduction of the corresponding di-Schiff bases that produces a good yield using water as a solvent without the need for catalysis or the azeotropic removal of water has been developed. These symmetric diimines have been reduced to their corresponding diamines with sodium borohydride using a catalyst- and solvent-free protocol with excellent yield. Mild conditions, high yields, and a simple work-up procedure are the primary benefits of this protocol.</p>

scholarly journals Controlled Growth of Dendrimer-Coated Gold Nanoparticles: A Solvent-Free Process in Mild Conditions

ACS Omega ◽  
2020 ◽  
Author(s):  
José Antonio Ulloa ◽  
Joaquín Barberá ◽  
José Luis Serrano
Keyword(s):  
Gold Nanoparticles ◽  
Solvent Free ◽  
Controlled Growth ◽  
Mild Conditions ◽  
Free Process

scholarly journals Mechanically induced solvent-free esterification method at room temperature

RSC Advances ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 5080-5085
Author(s):  
Lei Zheng ◽  
Chen Sun ◽  
Wenhao Xu ◽  
Alexandr V. Dushkin ◽  
Nikolay Polyakov ◽  
...  
Keyword(s):  
Natural Products ◽  
Carboxylic Acids ◽  
Late Stage ◽  
Reaction Mechanisms ◽  
Room Temperature ◽  
Solvent Free ◽  
Mild Conditions

We have developed I2/KH2PO2 and KI/P(OEt)3 strategy syntheses of esters from carboxylic acids and alcohols through different reaction mechanisms. The advantages of present protocol: mild conditions and late-stage diversification of natural products.

scholarly journals Homocoupling of terminal alkynes catalyzed by CuCl under solvent-free conditions

2021 ◽  
pp. 174751982110325
Author(s):  
Yan Xiao ◽  
Jiyu Gao ◽  
Peng Chen ◽  
Guangliang Chen ◽  
Zicheng Li ◽  
...  
Keyword(s):  
Functional Group ◽  
Reaction Times ◽  
Environmentally Friendly ◽  
Solvent Free ◽  
Copper Salt ◽  
Terminal Alkynes ◽  
Mild Conditions ◽  
Solvent Free Conditions ◽  
Environmentally Friendly Process

A series of symmetrical 1,4-disubstituted buta-1,3-diynes is prepared with excellent yields (up to 95%) through homocoupling of terminal alkynes catalyzed by a copper salt under solvent-free conditions. This method provides an environmentally friendly process to prepare 1,3-diynes in short reaction times under mild conditions. Furthermore, the method is suitable for a wide substrate scope and has excellent functional group compatibility. The reaction can also be scaled up to gram level.

scholarly journals Barium Dichloride as a Powerful and Inexpensive Catalyst for the Pechmann Condensation without Using Solvent

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Saeed Khodabakhshi
Keyword(s):  
Green Chemistry ◽  
Organic Solvents ◽  
Condensation Reaction ◽  
Reaction Times ◽  
Solvent Free ◽  
Coumarin Derivatives ◽  
Inexpensive Method ◽  
Keto Esters ◽  
Pechmann Condensation ◽  
Solvent Free Conditions

Various coumarin derivatives have been efficiently synthesized via barium dichloride-catalyzed Pechmann condensation reaction of various phenols and β-keto esters under solvent-free conditions. This novel and inexpensive method has advantages such as short reaction times, excellent product yields, and avoidance of organic solvents in agreement with green chemistry principles.

scholarly journals Pd–Ni Bimetallic Nanoparticles Supported on Zro2 as an Efficient Catalyst for Suzuki–Miyaura Reactions

2018 ◽  
Vol 42 (8) ◽  
pp. 419-423
Author(s):  
Li-Jie Zhang ◽  
Xian Yao ◽  
Ying-xin Sun ◽  
Jia-wei Zhang ◽  
Chun Cai
Keyword(s):  
Reduction Method ◽  
Bimetallic Nanoparticles ◽  
Bimetallic Catalyst ◽  
Cross Coupling ◽  
Catalytic Performance ◽  
Coupling Reactions ◽  
Efficient Catalyst ◽  
Mild Conditions ◽  
Cross Coupling Reactions ◽  
Excellent Catalytic Performance

Pd–Ni bimetallic nanoparticles (BMNPs) supported on ZrO2 were prepared by an impregnation–reduction method. The BMNPs showed excellent catalytic performance in Suzuki carbon–carbon cross-coupling reactions and almost quantitative conversion of the substrates was obtained under mild conditions in the absence of ligand. The excellent catalytic performance of the bimetallic catalyst could be a result of the synergistic effect between the two metal components. The catalyst showed outstanding recyclability during the reaction process; no obvious decrease in catalytic performance was observed after five cycles.

scholarly journals Selective suppression of toluene formation in solvent-free benzyl alcohol oxidation using supported Pd-Ni bimetallic nanoparticles

2017 ◽  
Vol 38 (11) ◽  
pp. 1870-1879 ◽  
Author(s):  
Jianwei Che ◽  
Mengjia Hao ◽  
Wuzhong Yi ◽  
Hisayoshi Kobayashi ◽  
Yuheng Zhou ◽  
...  
Keyword(s):  
Benzyl Alcohol ◽  
Bimetallic Nanoparticles ◽  
Alcohol Oxidation ◽  
Solvent Free ◽  
Benzyl Alcohol Oxidation ◽  
Selective Suppression ◽  
Supported Pd
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