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ONE-POT SYNTHESIS OF ISOQUINUCLIDINE DERIVATIVES THROUGH MULTICOMPONENT AZA-DIELS-ALDER REACTIONS PROMOTED BY NIOBIUM PENTAETHOXIDE
(Raman Publ, 2015-01-01)
The bicyclic isoquinuclidine system can be found in many natural products and has several pharmacological properties. In this paper is described an one-pot sysnthesis of Isoquinuclidine derivatives through multicomponent ...
Design and synthesis of angucyclinone 5-aza analogues
(GEORG THIEME VERLAG KG, 2006)
A highly efficient one-pot procedure for the synthesis of phenanthridine-1,7,10-triones from acylbenzoquinones and cyclic enaminones is reported. The cycloaddition reactions of these quinones with 1-trimethylsilyloxybutadiene ...
Estudos sobre o uso de NbCl5 como ácido de Lewis em reações de Povarov
(2011)
The aim of this work was to investigate the use of NbCl5 as Lewis acid in cycloadittion reactions [Reaction Aza-Diels-Alder (Povarov)] between Schiff bases and enol ethers. Comparison of reaction yields, obtained products ...
SYNTHESIS AND RETRO AZA DIELS-ALDER REACTION OF SOME NEW ISOQUINUCLIDINE DERIVATIVES
(PERGAMON-ELSEVIER SCIENCE LTD, 2009)
N-Benzyl- and N-(alpha-methoxycarbonylethyl)-2,4,6-triphenyl-1,2-dihydropyridines were submitted to Diels-Alder reactions with maleic anhydride or N-phenylmaleimide yielding, diastereoselectively, the corresponding endo-anti ...
An efficient synthesis of 2,3-diaryl-2-azabicyclooctanones via bicl3-catalysed three-component aza diels-alder reaction
(BENTHAM SCIENCE PUBL LTD, 2008)
Síntese de compostos aza-Diels Alder utilizando como catalisador o bis-L-prolinato de zinco (II)
(Universidade Federal da Grande DouradosBrasilFaculdade de Ciências Exatas e TecnologiaPrograma de pós-graduação em QuímicaUFGD, 2019)
Highly stereoselective and catalyst-free synthesis of annulated tetrahydropyridines by intramolecular imino-Diels-Alder reaction under microwave irradiation in water
(Royal Society of Chemistry, 2016)
A microwave-assisted method for the synthesis of tetracyclic tetra-hydropyridines via an intramolecular imino-Diels-Alder reaction in water is reported. The reaction proceeds under catalyst-free conditions and shows excellent ...
Estudo sobre o uso de compostos de nióbio em reações multicomponentes de aza-Diels-Alder
(Universidade Estadual Paulista (Unesp), 2014-02-21)
As reações multicomponentes (RMCs) são geralmente definidas como um processo em que três ou mais reagentes combinam-se, em um mesmo pot reacional, para formar um produto que tenha características estruturais de cada reagente ...