One-pot tandem 1,4–1,2-addition of phosphites to quinolines
作者:Ann De Blieck、Kurt G. R. Masschelein、Fréderic Dhaene、Ewa Rozycka-Sokolowska、Bernard Marciniak、Jozef Drabowicz、Christian V. Stevens
DOI:10.1039/b906808b
日期:——
Trialkyl and silylated dialkyl phosphites were evaluated as phosphorus nucleophiles for the addition to quinolines in a strong acidic medium allowing consecutive 1,4- and 1,2-addition breaking up the aromatic stabilisation, thereby leading to 2,4-diphosphono-1,2,3,4-tetrahydroquinolines in one single reaction step in moderate to good yields (2-84%).