Syntheses of quinolines, dihydro- and tetrahydroquinolines via ortho-quinone methide imine intermediate
作者:Jennifer M. Wiebe、Alain S. Caillé、Laird Trimble、Cheuk K. Lau
DOI:10.1016/0040-4020(96)00685-0
日期:1996.9
secondary anilines via N-alkylanilinochlorophenylboranes has been developed. Pyrolysis of the resulting ortho-aminobenzyl alcohols generated the corresponding ortho-quinonemethideimines, which can participate in an electrocyclic reaction to yield 2-substituted-1,2-dihydroquinolines. The resulting dihydroquinolines can be converted readily to a variety of 2-substituted quinolines. Intramolecular trapping