A Green Chemistry Approach to a More Efficient Asymmetric Catalyst:  Solvent-Free and Highly Concentrated Alkyl Additions to Ketones

2005 ◽  
Vol 127 (47) ◽  
pp. 16416-16425 ◽  
Author(s):  
Sang-Jin Jeon ◽  
Hongmei Li ◽  
Patrick J. Walsh
Keyword(s):  
Green Chemistry ◽  
Solvent Free ◽  
Asymmetric Catalyst

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 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.

Catalyst- and Solvent-Free Hydrophosphorylation of Ketones with Secondary Phosphine Oxides: Green Synthesis of Tertiary α-Hydroxyphosphine Oxides

Synthesis ◽  
2020 ◽  
Vol 52 (15) ◽  
pp. 2224-2232
Author(s):  
Boris A. Trofimov ◽  
Nina K. Gusarova ◽  
Nina I. Ivanova ◽  
Kseniya O. Khrapova ◽  
Pavel A. Volkov ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Green Chemistry ◽  
Green Synthesis ◽  
Quantum Chemical Calculations ◽  
Quantum Chemical ◽  
Solvent Free ◽  
Secondary Phosphine ◽  
Phosphine Oxides ◽  
Intramolecular Hydrogen ◽  
Solvent Free Reaction

Tertiary α-hydroxyphosphine oxides have been synthesized via the catalyst- and solvent-free reaction between available secondary phosphine oxides and aliphatic, aromatic and heteroaromatic ketones at 20–62 °C in near to 96–98% yield. The developed method meets the requirements of green chemistry and the PASE (pot, atom, step economy) paradigm. According to quantum-chemical calculations at the B3LYP/6-311++G(d,p) level, the synthesized hydroxyphosphine oxides feature a weak (≈3 kcal·mol–1) O−H···O=P intramolecular hydrogen bond.

Solvent-free reactions as green chemistry procedures for the synthesis of cosmetic fatty esters

2003 ◽  
Vol 5 (5) ◽  
pp. 623 ◽  
Author(s):  
C. Villa ◽  
E. Mariani ◽  
A. Loupy ◽  
C. Grippo ◽  
G. C. Grossi ◽  
...  
Keyword(s):  
Green Chemistry ◽  
Solvent Free ◽  
Fatty Esters

ChemInform Abstract: Green Chemistry Approaches to the Knoevenagel Condensation: Comparison of Ethanol, Water and Solvent-Free (Dry Grind) Approaches.

ChemInform ◽  
2010 ◽  
Vol 33 (33) ◽  
pp. no-no
Author(s):  
Adam McCluskey ◽  
Philip J. Robinson ◽  
Tim Hill ◽  
Janet L. Scott ◽  
J. Kate Edwards
Keyword(s):  
Green Chemistry ◽  
Knoevenagel Condensation ◽  
Solvent Free ◽  
Dry Grind
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