On the Brønsted acid-catalyzed aza-Michael reaction of isoxazol-5-ones to enones: reaction optimization, scope, mechanistic investigations and scale-up DOI

Marcelo Siqueira,

Pedro P. de Castro, Juliana Alves dos Santos

et al.

Reaction Chemistry & Engineering, Journal Year: 2023, Volume and Issue: 8(5), P. 1204 - 1215

Published: Jan. 1, 2023

Regioselective aza-Michael-type of isoxazol-5-ones to activate double bonds.

Language: Английский

Synthesis of furfural from xylose using a choline chloride-based deep eutectic solvent and mechanistic insights DOI

Daniela Margarita Echeverri Delgadillo,

Gabriel Abranches Dias Castro, Sérgio Antônio Fernandes

et al.

Reaction Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 9(6), P. 1560 - 1568

Published: Jan. 1, 2024

Choline chloride-based deep eutectic solvents can be used in the green synthesis of furfural, a platform molecule derived from biomass.

Language: Английский

Citations

2
Scalable organocatalytic one pot asymmetric Strecker reaction via camphor sulfonyl functionalized crown-ether-tethered calix[4]arene DOI
Apoorva Malik,

Kirti Antil,

Nikhil Kumar Singh

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(65), P. 8561 - 8564

Published: Jan. 1, 2024

A highly selective camphor sulfonyl functionalized crown-ether-tethered calix[4]arene organocatalyst is designed for asymmetric Strecker reaction to provide desired cyano adducts in high yields (∼99.9%) and enantioselectivities (up 99.3% ee).

Language: Английский

Citations

2
A Fluorescent Probe for Al3+ Based on Calix[4]arene Containing Salicylaldehyde‐Derived Schiff Base DOI Open Access

Zuquan Wang,

Yunjian Li, Jing Shi

et al.

European Journal of Organic Chemistry, Journal Year: 2023, Volume and Issue: 26(37)

Published: Aug. 9, 2023

Abstract Two novel fluorescent probes L1 and L2 for recognizing Al 3+ have been prepared by cooperating salicylaldehyde‐derived Schiff base groups onto the upper rim of calix[4]arene. Of these probes, is most effective at , displaying a highly selective fluorescence “on” response with an emission wavelength 478 nm Stokes shift 88 nm. Additionally, probe can form 1 : coordination complex binding constant 2.6×10 10 M −1 . Furthermore, its intensity exhibits good linear relationship concentration within range 2.0×10 −5 to 1.4×10 −4 M, has low detection limit 4.36×10 −7 M.

Language: Английский

Citations

1
On the Brønsted acid-catalyzed aza-Michael reaction of isoxazol-5-ones to enones: reaction optimization, scope, mechanistic investigations and scale-up DOI

Marcelo Siqueira,

Pedro P. de Castro, Juliana Alves dos Santos

et al.

Reaction Chemistry & Engineering, Journal Year: 2023, Volume and Issue: 8(5), P. 1204 - 1215

Published: Jan. 1, 2023

Regioselective aza-Michael-type of isoxazol-5-ones to activate double bonds.

Language: Английский

Citations

0