A novel four component one-pot access to pyrindines and tetrahydroquinolines
作者:N.A.M Yehia、K Polborn、T J. J. Müller
DOI:10.1016/s0040-4039(02)01615-5
日期:2002.9
Dihydropyrindines and tetrahydroquinolines, i.e. cyclopentyl and cyclohexyl annealed pyridines, can be synthesized in good yields in a one-pot three-step four-component process by a coupling-isomerization-Stork-enamine alkylation-cyclocondensation sequence of an electron poor (hetero)aryl halide, a terminal propargyl alcohol, a cyclic N-morpholino alkene and ammonium chloride. The structures of the 1,5-diketone 4d and the tetrahydroquinoline 5c were additionally supported by X-ray structure analyses. (C) 2002 Elsevier Science Ltd, All rights reserved.