Syntheses of allyldihydroquinolines: indium-mediated allylations of EEDQ in the presence of acetic acid

Indium-mediated allylations of EEDQ with various allyl bromides in the presence of 1.2 equiv. of acetic acid at rt gave the corresponding allylated dihydroquinolines with high α selectivities in high yields. The allylations of EEDQ with limited allyltins and allylsilane in the presence of BF3·Et2O at rt gave the corresponding allylated products in high yields.