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Single-step synthesis of 4-phenyl and 3,4-dihydro-4-phenyl coumarins using a recyclable Preyssler heteropolyacid catalyst under solvent-free reaction conditions
(Springer, 2015-04-17)
4-Phenyl and 3,4-dihydro-4-phenylcoumarins were prepared by direct esterification
of phenols with phenylpropiolic and cinnamic acids, respectively, using a
compound with Preyssler structure (H14P5NaW30O110) (PA) as ...
A Solvent-free Method for Synthesis of Dihydroangelicins using Microwaves
(Bentham Science Publishers, 2017-04)
Background: Dihydrofurocoumarins are a large family of compounds, among them, dihydroangelicins and dihydropsoralens, are present in various plant species with varied biological activity. Several strategies have been ...
Sustainable Synthesis of Flavonoid Derivatives, QSAR Study and Insecticidal Activity against the Fall Armyworm, Spodoptera frugiperda (Lep.: Noctuidae)
(American Chemical Society, 2010-05)
A simple, clean, solvent-free preparation of flavones by the use of a silica-supported Preyssler heteropolyacid as reusable catalyst is described. High selectivity and very good yields (87−94%) were obtained in short ...
Síntese e estudo estrutural de polioxometalatos: propriedades e aplicações
(Universidade Estadual Paulista (Unesp), 2009-12-10)
Os polioxometalatos (POMs) estão sendo muito estudados devido a suas propriedades atrativas, em especial a alta densidade eletrônica, alta solubilidade em muitos solventes e estabilidade térmica até aproximadamente 500°C. ...
Síntesis de cinamato de metilo, a través de un procedimiento de bajo impacto ambiental, y evaluación de su actividad antifúngica como potencial preservante de maderasGreen preparation of methyl cinnamate and evaluation of its antifungal activity as a potential wood preservative
(Universidad Pedagógica y Tecnológica de Colombia, 2019-07-23)
La prevención y el control de hongos que atacan madera utilizando agentes sintetizados en el marco de la Química Verde es una estrategia prometedora en el desarrollo de preservantes que conduzcan a la sostenibilidad ...
Síntese e estudo estrutural de polioxometalatos: propriedades e aplicações
(Universidade Estadual Paulista (UNESP), 2014)
Síntese e estudo estrutural de polioxometalatos: propriedades e aplicações
(Universidade Estadual Paulista (Unesp), 2014)