Multicomponent Petasis-borono Mannich Preparation of Alkylaminophenols and Antimicrobial Activity Studies
作者:Íris Neto、Joana Andrade、A. S. Fernandes、Catarina Pinto Reis、Jagadish K. Salunke、Arri Priimagi、Nuno R. Candeias、Patrícia Rijo
DOI:10.1002/cmdc.201600244
日期:2016.9.20
starting from salicylaldehyde and its derivatives. The obtained compounds were tested against a large panel of microorganisms, Gram-positive and Gram-negative bacteria, and a yeast. Among the several tertiary amine derivativestested, indoline-derived aminophenols containing a nitro group at the para-phenol position showed considerable activity against bacteria tested with minimal inhibitory concentrations
Water: A Suitable Medium for the Petasis Borono-Mannich Reaction
作者:Nuno R. Candeias、Luís F. Veiros、Carlos A. M. Afonso、Pedro M. P. Gois
DOI:10.1002/ejoc.200900056
日期:——
Water was used as the solvent in the Petasisborono-Mannichreaction. With the use of salicylaldehyde, secondary amines and boronic acids, several alkylaminophenols were obtained in considerably high yields in water. By using the same methodology, 2H-chromenes were prepared with the use of vinyl boronic acids. The reaction mechanism was studied by DFT calculations, and the results obtained corroborate