Indoles from 2‐Methylnitrobenzenes by Condensation with Formamide Acetals Followed by Reduction: 4‐Benzyloxyindole

Abstract Indoles from 2‐Methylnitrobenzenes by Condensation with Formamide Acetals Followed by Reduction: 4‐Benzyloxyindole intermediate: 6‐benzyloxy‐2‐nitrotoluene intermediate: (E)‐6‐benzyloxy‐2‐nitro‐β‐pyrrolidinostyrene and (E)‐6‐benzyloxy‐β‐dimethylamino‐2‐nitrostyrene product: 4‐benzyloxyindole intermediate: pyrrolidine enamine, mp 108–110° (MeOH), and N,N‐dimethylenamine