Water as the reaction medium for multicomponent reactions based on boronic acids
作者:Nuno R. Candeias、Pedro M.S.D. Cal、Vânia André、M. Teresa Duarte、Luís F. Veiros、Pedro M.P. Gois
DOI:10.1016/j.tet.2010.01.084
日期:2010.4
Petasis-borono-Mannich multicomponent reaction. Salicylaldehyde, glyoxalic acid, glycoaldehyde and glyoxal were reacted with several boronicacids and different amines affording alkylaminophenols, 2H-chromenes, α-amino acids, α-amino alcohols and 2-hydroxylmorpholines in good to high yields. An efficient new one-pot method for the assembly of boron-heterocycles based on amino-acids, boronicacids and salicylaldehyde