Organic synthesis via magnetic attraction: benign and sustainable protocols using magnetic nanoferrites
作者:R. B. Nasir Baig、Rajender S. Varma
DOI:10.1039/c2gc36455g
日期:——
Magnetic nano-catalysts have been prepared using simple modification of iron ferrites. The nm size range of these particles facilitates the catalysis process, as an increased surface area is available for the reaction; the easy separation of the catalysts by an external magnet and their recovery and reuse are additional beneficial attributes. Glutathione bearing nano-ferrites have been used as organocatalysts for the Paal–Knorr reaction and homocoupling of boronic acids. Nanoferrites, post-synthetically modified by ligands, were used to immobilize nanometals (Cu, Pd, Ru, etc.) which enabled the development of efficient, sustainable and green procedures for azide–alkynes-cycloaddition (AAC) reactions, C–S coupling, O-allylation of phenol, Heck-type reactions and hydration of nitriles.
Inhibition of fattyacidamidehydrolase (FAAH) activity is under investigation as a valuable strategy for the treatment of several disorders, including pain and drug addiction. A number of potent FAAH inhibitors belonging to different chemical classes have been disclosed to date; O‐aryl carbamates are one of the most representative families. In the search for novel FAAH inhibitors, a series of O‐(1
A Microwave-Assisted Click Chemistry Synthesis of 1,4-Disubstituted 1,2,3-Triazoles via a Copper(I)-Catalyzed Three-Component Reaction
作者:Prasad Appukkuttan、Wim Dehaen、Valery V. Fokin、Erik Van der Eycken
DOI:10.1021/ol048341v
日期:2004.11.1
4-disubstituted-1,2,3-triazoles from corresponding alkyl halides, sodium azide, and alkynes. This procedure eliminates the need to handle organic azides, as they are generated in situ, making this already powerful click process even more user-friendly and safe.
An Efficient (2-Aminoarenethiolato)copper(I) Complex for the Copper-Catalysed Huisgen Reaction (CuAAC)
作者:Pierangelo Fabbrizzi、Stefano Cicchi、Alberto Brandi、Elena Sperotto、Gerard van Koten
DOI:10.1002/ejoc.200900779
日期:2009.11
A (2-aminoarenethiolato)copper(I) complex has been used as an efficient catalyst (1 mol-%) for the copper-catalysedHuisgen reaction (CuAAC) of azides and terminal alkynes in an organic solvent. The reaction was also extremely effective in CH2Cl2 allowing the complete decoration of dendrimeric scaffolds
The copper–nicotinamide complex: sustainable applications in coupling and cycloaddition reactions
作者:R. B. Nasir Baig、Buchi Reddy Vaddula、Mallikarjuna N. Nadagouda、Rajender S. Varma
DOI:10.1039/c4gc02047b
日期:——
The copper(ii)–nicotinamide complex catalyzes the C–S, C–N bond forming and cycloaddition reactions under a variety of sustainable reaction conditions.