Novel Palladium-Catalyzed Cascade Reaction of 2-Methylindoles with 2-Iodobenzyl Bromide Leading to Indole Fused Tricyclo[7,3,1,02,7]trideca-2(7),3,5-triene Ring System

Novel palladium-catalyzed cascade reaction of 2-methylindoles with 2-iodobenzyl bromide in the system Pd(OAc)(2) / Xantphos / t-BuOK / toluene leading to indole-fused tricyclo[7,3,1,0(2,7)] trideca-2(7),3,5-triene ring system was presented. Palladium catalyzed reaction of 2-methylindoles with 6-bromo-5-bromomethylbenzo[1,3] dioxole leads to 3,3-bis(6-bromobenzo[1,3]dioxol-5-ylmethyl)-2-methyl-3H-indoles.