scholarly journals An Alginate-Confined Peroxygenase-CLEA for Styrene Epoxidation

2021 ◽  
Author(s):  
Friederike Emma Hedwig Nintzel ◽  
Yinqi Wu ◽  
Matteo Planchestainer ◽  
Martin Held ◽  
Miguel Alcalde ◽  
...  
Keyword(s):  
Reaction System ◽  
Solvent Free ◽  
Styrene Epoxidation ◽  
Enantioselective Epoxidation ◽  
Solvent Free Reaction

Oxyfunctionalisation reactions in neat substrate still pose a challenge for biocatalysis. Here, we report an alginate-confined peroxygenase-CLEA to catalyse the enantioselective epoxidation of cis-β-methylstyrene in a solvent-free reaction system achieving...

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

ChemInform Abstract: Solvent-Free Reaction Between Acenaphthoquinone, Various Benzils and Ammonium Acetate: Synthesis of 9,10-Diaryl-7H-benzo[d,e]imidazo[2,1-a]isoquinolin-7-ones.

ChemInform ◽  
2011 ◽  
Vol 42 (33) ◽  
pp. no-no
Author(s):  
Mehdi Adib ◽  
Bagher Mohammadi ◽  
Samira Ansari ◽  
Hamid Reza Bijanzadeh ◽  
Long-Guan Zhu
Keyword(s):  
Ammonium Acetate ◽  
Solvent Free ◽  
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.

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