Mechanochemical Synthesis of Dipeptides Using Mg-Al Hydrotalcite as Activating Agent under Solvent-Free Reaction Conditions

2017 ◽  
Vol 2017 (3) ◽  
pp. 687-694 ◽  
Author(s):  
José M. Landeros ◽  
Eusebio Juaristi
Keyword(s):  
Mechanochemical Synthesis ◽  
Solvent Free ◽  
Reaction Conditions ◽  
Activating Agent ◽  
Solvent Free Reaction

Halogenation of ketones with N-halosuccinimides under solvent-free reaction conditions

Tetrahedron ◽  
2008 ◽  
Vol 64 (22) ◽  
pp. 5191-5199 ◽  
Author(s):  
Igor Pravst ◽  
Marko Zupan ◽  
Stojan Stavber
Keyword(s):  
Solvent Free ◽  
Reaction Conditions ◽  
Solvent Free Reaction

scholarly journals Silica sulfuric acid: a reusable solid catalyst for one pot synthesis of densely substituted pyrrole-fused isocoumarins under solvent-free conditions

2013 ◽  
Vol 9 ◽  
pp. 2344-2353 ◽  
Author(s):  
Sudipta Pathak ◽  
Kamalesh Debnath ◽  
Animesh Pramanik
Keyword(s):  
Sulfuric Acid ◽  
Low Cost ◽  
Solvent Free ◽  
Primary Amines ◽  
Solid Catalyst ◽  
Silica Sulfuric Acid ◽  
Reaction Conditions ◽  
One Pot ◽  
Solvent Free Conditions ◽  
Solvent Free Reaction

A convenient and efficient methodology for the synthesis of densely substituted pyrrole-fused isocoumarins, which employs solid-supported silica sulfuric acid (SSA) as catalyst, has been developed. When the mixture of ninhydrin adducts of acetylacetone/ethyl acetoacetate and primary amines was heated on the solid surface of SSA under solvent-free conditions, the pyrrole-fused isocoumarins were formed in good yields. This synthetic method has several advantages such as the employment of solvent-free reaction conditions without the use of any toxic reagents and metal catalysts, the ease of product isolation, the use of a recyclable catalyst, the low cost, the easy availability of the starting materials, and the excellent yields of products.

scholarly journals N-Halosuccinimides as Precatalysts for C-, N-, O-, and X-Nucleophilic Substitution Reactions of Alcohols under Mild Reaction Conditions

Catalysts ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 460
Author(s):  
Njomza Ajvazi ◽  
Stojan Stavber
Keyword(s):  
Nucleophilic Substitution ◽  
Substrate Concentration ◽  
Solvent Free ◽  
Substitution Reactions ◽  
High Substrate Concentration ◽  
Reaction Conditions ◽  
High Substrate ◽  
Nucleophilic Substitution Reactions ◽  
Solvent Free Reaction

N-halosuccinimides (chloro, bromo, and iodo, respectively) were introduced, tested, and applied as efficient and non-metal precatalysts for C-, N-, O-, and X-nucleophilic substitution reactions of alcohols under solvent-free reaction conditions (SFRC) or under high substrate concentration reaction conditions (HCRC) efficiently and selectively, into the corresponding products.

scholarly journals Cyanuric Chloride-Catalyzed Michael Addition of Indoles to Nitroolefins under Solvent-Free Conditions

2013 ◽  
Vol 2013 ◽  
pp. 1-5
Author(s):  
Xiao Juan Yang ◽  
Yun Jing
Keyword(s):  
Michael Addition ◽  
Present Method ◽  
Solvent Free ◽  
Cyanuric Chloride ◽  
Reaction Conditions ◽  
Experimental Procedure ◽  
Solvent Free Conditions ◽  
Short Period ◽  
The Michael Addition ◽  
Solvent Free Reaction

Cyanuric chloride is an inexpensive, efficient, and mild catalyst for the Michael addition of indoles to nitroolefins at 70°C under solvent-free conditions. The simple experimental procedure, solvent-free reaction conditions, utilization of an inexpensive and readily available catalyst, short period of conversion, and excellent yields are the advantages of the present method.

scholarly journals Asymmetric Michael Addition Organocatalyzed by α,β-Dipeptides under Solvent-Free Reaction Conditions

Molecules ◽  
2017 ◽  
Vol 22 (8) ◽  
pp. 1328 ◽  
Author(s):  
C. Gabriela Avila-Ortiz ◽  
Lenin Díaz-Corona ◽  
Erika Jiménez-González ◽  
Eusebio Juaristi
Keyword(s):  
Michael Addition ◽  
Solvent Free ◽  
Reaction Conditions ◽  
Asymmetric Michael Addition ◽  
Solvent Free Reaction

Preparation of Bis-Functionalized 1,4-Diaminobutane Derivatives

2014 ◽  
Vol 662 ◽  
pp. 63-66
Author(s):  
Xiao Chuan Li ◽  
Shan Shan Gong ◽  
Qi Sun
Keyword(s):  
Mass Spectroscopy ◽  
Solvent Free ◽  
Experimental Results ◽  
Reaction Conditions ◽  
Solvent Free Reaction

A three-component solvent-free method for the synthesis of a series of bis-α-aminophosphonate-modified butanes has been developed. The experimental results showed that the solvent-free reaction conditions without catalyst were optimal for the preparation of this type compounds. The synthesized title compounds were characterized by 1H, 13C, and 31P NMR and mass spectroscopy.

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