Reactions of substituted 2,3-dihydro-1 H -indol-3-ones and pyrrolo[2,3- b ]pyridin-3-ones with Wittig and Horner–Emmons reagents: synthesis of 7-azatryptamine
cyanomethanephosphonate for giving the corresponding (7-azaindol-3-yl)acetonitrile or more unexpectedly, a C-2 alkylated product; this behavior has been extended to another nucleophilic reagent. Finally the synthesis of 7-azatryptamine was reported.