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Síntese de 3-organocalcogenil-2-organo-cromenonas via reações de ciclização intramolecular mediada por selectfluor®
(Universidade Federal de Santa MariaBrasilQuímicaUFSMPrograma de Pós-Graduação em QuímicaCentro de Ciências Naturais e Exatas, 2021-09-30)
This paper reports the development of an effective synthetic protocol between 1,3-
organo-propynones 1 and different diorganoyl dicalcogenides 2 mediated by Selectfluor® and
employing acetonitrile as a solvent, at room ...
Síntese de selanil-(hetero)arenos e 3-selanil-4-amino-2H-cromen-2-onas via selenilação promovida por Selectfluor®
(Universidade Federal de Santa MariaBrasilQuímicaUFSMPrograma de Pós-Graduação em QuímicaCentro de Ciências Naturais e Exatas, 2021-07-26)
In the present work, two synthetic methodologies were developed to access organochalcogen compounds, from direct selenylation reactions using several (hetero)arenes or 4-amino-2H-chromen-2-ones and diorganyl diselenides ...
Estudo de reações de flúor-inserção em 1h-pirazóis utilizando os reagentes fluorantes selectfluor, dast e mfsda
(Universidade Federal de Santa MariaBRQuímicaUFSMPrograma de Pós-Graduação em Química, 2015-08-19)
This thesis describes the studies carried out using fluorinating reagents with different approaches: Selectfluor as an electrophilic fluorine source; DAST for nucleophilic fluorinations and MFSDA as a nucleophilic ...
Fluoro-curcuminoids and curcuminoid-BF2adducts: Synthesis, X-ray structures, bioassay, and computational/docking study
(Elsevier Science Sa, 2016-09-17)
A series of α-carbonyl fluorinated curcuminoids were synthesized by direct mono- and difluorination with Selectfluor (F-TEDA-BF4) at r.t. without using a base or additive. Ring fluorinated/trifluoromethylated curcuminoid ...