85225-54-3Relevant articles and documents
One-pot synthesis of functionalized nitrones from nitro compounds
Gautheron-Chapoulaud,Pandya,Cividino,Masson,Py,Valle?e
, p. 1281 - 1283 (2001)
The zinc-mediated reduction of nitroalkanes and nitroarenes in the presence of aldehydes is an efficient method to synthesize a wide range of nitrones. This method is mild enough to accommodate a variety of functional groups. It is particularly useful when the intermediate hydroxylamines are unstable and/or water-soluble. We used it to prepare several aromatic, aliphatic and highly functionalized sugar-derived nitrones.
Trifluoromethyl Vinyl Sulfide: A Building Block for the Synthesis of CF3S-Containing Isoxazolidines
Riesco-Domínguez, Alejandra,Van De Wiel, Jeroen,Hamlin, Trevor A.,Van Beek, Bas,Lindell, Stephen D.,Blanco-Ania, Daniel,Bickelhaupt, F. Matthias,Rutjes, Floris P. J. T.
, p. 1779 - 1789 (2018/02/23)
Trifluoromethyl vinyl sulfide, a potential building block for pharmaceutically and agrochemically relevant products, is prepared and used for the first time in high-pressure-mediated 1,3-dipolar cycloaddition reactions with nitrones to synthesize (trifluoromethyl)sulfanyl isoxazolidines.
Controlling Asymmetric Remote and Cascade 1,3-Dipolar Cycloaddition Reactions by Organocatalysis
Poulsen, Pernille H.,Vergura, Stefania,Monleón, Alicia,J?rgensen, Danny Kaare Bech,J?rgensen, Karl Anker
supporting information, p. 6412 - 6415 (2016/06/09)
The regio- and stereoselective control of cycloaddition reactions to polyconjugated systems has been demonstrated by applying asymmetric organocatalysis. Reaction of 2,4-dienals with nitrones allows for a highly regio- and stereoselective 1,3-dipolar cycl
Regio-and stereoselective 1,3-dipolar cycloaddition of C-aryl-N- phenylnitrones over (E)-arylidene-(2H)-indan-1-ones: Synthesis of highly substituted novel spiro-isoxazolidines
Wannassi, Nadia,Rammah, Mohamed Mehdi,Boudriga, Sarra,El Baker Rammah, Mohamed,Monnier-Jobe, Karin,Ciamala, Kabula,Knorr, Michael,Enescu, Mironel,Rousselin, Yoann,Kubicki, Marek M.
body text, p. 2749 - 2762 (2011/04/16)
Synthesis of a series of novel spiro-isoxazolidines has been accomplished in good yields by regio-and diastereoselective 1,3-dipolar cycloaddition of (E)-2-arylidene-(2H)-indan-1-ones 1a-d to C-aryl-N-phenylnitrones 2e-h. The structure of the spiro-adduct
Exploiting microwave-assisted neat procedures: synthesis of N-aryl and N-alkylnitrones and their cycloaddition en route for isoxazolidines
Andrade, Marta M.,Barros, Maria Teresa,Pinto, Rui C.
, p. 10521 - 10530 (2008/12/23)
Microwave irradiation allows increasing the speed of several reactions and also offers the possibility of eliminating poisoning organic solvents. In this work we report the microwave-assisted neat synthesis of α-phenyl-tert-butylnitrone (PBN) and other alkyl and aryl nitrones and also the rapid synthesis of isoxazolidines resulting from 1,3-dipolar cycloaddition of nitrones to ethyl trans-crotonate.
1,3-Dipolar cycloadditions. Part-XIII: Microwave irradiation assisted synthesis and spectroscopic investigations of C-aryl-N-phenyl and C-aryl-N-(4′-chlorophenyl)nitrones
Banerji, Avijit,Biswas, Pizush Kanti,Gupta, Maya,Saha, Rina,Banerji, Julie
, p. 1004 - 1010 (2008/09/19)
C-Aryl-N-phenylnitrones have been prepared in very high yields from N-phenylhydroxylamine and aryl aldehydes using the microwave irradiation technique within a few minutes. The synthesis of a new series of nitrones, viz. the series of C-aryl-N-(4′-chlorop
Investigations of regio- and stereoselectivities in the synthesis of cytotoxic isoxazolidines through 1,3-dipolar cycloadditions of nitrones to dipolarophiles bearing an allylic oxygen
Singh, Rajinder,Bhella, Surinderjit Singh,Sexana,Shanmugavel,Faruk, Abdul,Ishar
, p. 2283 - 2291 (2007/10/03)
Regio- and stereoselectivities in cycloadditions of nitrones to dipolarophiles bearing an allylic oxygen, which furnishes substituted-isoxazolidine analogs of the furanose ring of nucleosides, have been investigated. Although the obtained regioselectiviti
The cycloaddition of nitrones with homochiral cyclopropanes
Sapeta, Katarina,Kerr, Michael A.
, p. 8597 - 8599 (2008/03/12)
(Chemical Equation Presented) The cycloaddition of nitrones and enantiomerically pure cyclopropane-1,1-dicarboxylates is examined. Transfer of optical activity to the adduct is dictated by thermal reaction conditions and nature of cyclopropane substitutio
Iron and manganese (III) - Porphyrins as new applicable catalysts for selective oxidation of imines with urea-hydrogen peroxide
Karami, Bahador,Montazerozohori, Morteza,Moghadam, Majid,Farahi, Mahnaz
, p. 275 - 277 (2008/02/09)
A variety of imines were oxidised with urea-hydrogen peroxide using iron(III) and manganese (III)- tetraphenylporphyrins [Fe(TPP)Cl], [Mn(TPP)Cl] and manganese (III)-octabromotetraphenyl porphyrin [Mn(TPPBr8)Cl] as catalysts. Experimental resul
Synthesis of C, N-diaryl nitrones from the reduction of nitroarene with aromatic aldehydes promoted by metallic samarium
Jia, Xueshun,Li, Dafeng,Huang, Qing,Zhu, Li,Li, Jian
, p. 308 - 309 (2008/02/08)
A mild and facile reduction of nitroarene with aromatic aldehydes promoted by metallic samarium to C, N-diaryl nitrones in moderate yields has been developed.