Buscar
Mostrando ítems 1-10 de 88
p-Sulfonic acid calix[n]arenes as homogeneous and recyclable organocatalysts for esterification reactions
(Tetrahedron Letters, 2018)
1,3-Dipolar cycloaddition reactions of azomethine ylides with a cellulose-derived chiral enone. A novel route for organocatalysts development
(American Chemical Society, 2012-05)
Cellulose-derived chiral pyrrolidines were synthesized in excellent yields, regioselectivities, and stereoselectivities via a 1,3-dipolar cycloaddition reaction between levoglucosenone and azomethine ylides. An unprecedented ...
Re-Engineering Organocatalysts for Asymmetric Friedel-Crafts Alkylation of Indoles through Computational Studies
(American Chemical Society, 2020-08)
The discovery of efficient organocatalysts is generally carried out by thorough experimental screening of different candidates. We recently reported an efficient organocatalyst for iminium-ion-based asymmetric Diels-Alder ...
Naturally occurring alfa-hydroxy acids: Useful organocatalysts for the acetylation of cellulose nanofibres
(Bentham Science Publishers, 2016-03)
Cellulose nanoribbons obtained from bacterial fermentation have been esterified by means of a solventless organocatalytic route. The esterification methodology involves acetic anhydride as acylant and three different ...
p-Sulfonic acid calix[n]arenes as organocatalysts for the transesterification reaction of Passiflora seed oil
(Monatshefte für Chemie - Chemical Monthly, 2018)
Multicomponent combinatorial synthesis of proplyl peptide-lipopeptoid hybrid catalyst: application in the asymmetric Michael addition under aqueous environment
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Química - PPGQCâmpus São Carlos, 2018-11-29)
This study describes the synthesis of a new library of prolyl peptides-lipopeptoid hybrids catalysts through a multicomponent combinatorial approach. For the design of this catalyst library, we took into consideration the ...