Banca de DEFESA: ANDREZA MARINHO MORAES

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : ANDREZA MARINHO MORAES
DATE: 09/08/2024
TIME: 13:30
LOCAL: https://meet.google.com/hrq-ipia-gik
TITLE:

SYNTHESIS AND CHARACTERIZATION OF CHROMENES FUSED TO PYRROLES BY MULTICOMPONENT REACTIONS

KEY WORDS:

Synthesis, multicomponent, solvent-free, green

PAGES: 161
BIG AREA: Ciências Exatas e da Terra
AREA: Química
SUBÁREA: Química Orgânica
SPECIALTY: Síntese Orgânica
SUMMARY:

This work addresses the synthesis and characterization of fused chromene-pyrroles using both solvent and solvent-free methodologies. In these reactions, a sustainable methodology was developed in accordance with the principles of Green Chemistry. Multicomponent reactions were utilized, and the study of photocatalysis mediated by blue LED was initiated. The synthesis of new compounds was proposed, aiming to introduce substituent groups that modified different regions of the compound. The main objectives of this study included the synthesis, purification, and characterization of new precursor compounds of fused chromene-pyrroles, as well as establishing an efficient methodology for these syntheses. Spectrometric methods were used for the characterization of the synthesized compounds, such as mass spectrometry, nuclear magnetic resonance, and infrared spectroscopy. The feasibility of photocatalytic reactions using eosin Y as a photocatalyst in nitrochromene derivatives was investigated. Photocatalysis with blue LED and eosin Y proved to be a promising approach for the synthesis of the target compounds. A patent was obtained for the developed methodology for the synthesis of fused chromene-pyrrole.

BANKING MEMBERS:
Externo à Instituição - CLEITON MOREIRA DA SILVA - UFMG
Externa à Instituição - DAIANE SZCZERBOWSKI MONTES VIDAL - UFMG
Presidente - 1675886 - JOSE AUGUSTO FERREIRA PEREZ VILLAR
Externa ao Programa - 1299052 - JULIANA CRISTINA DOS SANTOS ALMEIDA BASTOS
Externa ao Programa - 1420705 - ROSIMEIRE COURA BARCELOS