2010
DOI: 10.1007/s10562-010-0372-6
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Nano-MgO: An Efficient Catalyst for the Synthesis of Formamides from Amines and Formic Acid Under MWI

Abstract: Nano-MgO a basic catalyst was prepared by solution combustion technique. It was characterized by powder XRD, SEM, BET and TEM analyses. It was used as a catalyst for the study of microwave-assisted Nformylation of various aromatic and alkyl amines with formic acid under solvent-free conditions. Nano-MgO showed excellent catalytic properties and the reactions went to completion, within 1-2 min to give products in high yield (90-98%). The catalyst is recoverable quantitatively and re-cycled with almost consisten… Show more

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Cited by 41 publications
(25 citation statements)
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“…Finally, the precipitate is washed and calcined in an oven. Factors such as magnesium precursors, reactant solvents and reaction conditions play an important role in controlling the morphology and size of MgO nanoparticles (Sutradhar et al, 2011;Mel'gunov et al, 2003;Reddy et al, 2010;Fedorov et al, 2007). studied the controllable preparation of MgO nanoparticles by the hydrothermal method.…”
Section: Hydrothermal Methodsmentioning
confidence: 99%
“…Finally, the precipitate is washed and calcined in an oven. Factors such as magnesium precursors, reactant solvents and reaction conditions play an important role in controlling the morphology and size of MgO nanoparticles (Sutradhar et al, 2011;Mel'gunov et al, 2003;Reddy et al, 2010;Fedorov et al, 2007). studied the controllable preparation of MgO nanoparticles by the hydrothermal method.…”
Section: Hydrothermal Methodsmentioning
confidence: 99%
“…Reddy et al prepared a porous nanocrystalline-MgO material by calcination of a mixture of Mg(NO 3 ) 2 •6H 2 O and glycine. 119 The nano-MgO was utilized as catalyst for the N- 75 formylation of anilines under microwave irradiation (320W) to obtain the corresponding formanilides in 90-98% yield after 1-2 minutes (Scheme 30). The background reaction showed only traces of the formylated amine and a comparative study with commercially available bulk-MgO showed that the catalytic 80 power of nano-MgO was superior.…”
Section: Secondary and Tertiary Amidesmentioning
confidence: 99%
“…Microwave-assisted formylation of anilines with a nano-MgO catalyst (Reddy, 2010). 95 The group of Hosseini-Sarvari recently reported on a nanosulfated TiO 2 catalyst for the direct amidation of fatty acids.…”
mentioning
confidence: 99%
“…10.11.5 Synthesis of N-Arylsulfonylimines N-Sulfonylimines, versatile intermediates in organic synthesis and valuable substrates in aza-Diels-Alder and nucleophilic addition and reduction reactions, are prepared by an efficient solvent-free MW protocol (Scheme 10.96); sulfonamides and arylaldehydes in the presence of a catalytic amount of magnesium oxide (MgO) and TBAB are needed [228]. The recoverable catalyst can be used several times consistently without a decrease in activity [230]. The recoverable catalyst can be used several times consistently without a decrease in activity [230].…”
Section: Bromination Of Alkanones Using Microwavesmentioning
confidence: 99%