Immobilized alpha-diazophosphonoacetate as a versatile key precursor for palladium catalyzed indole synthesis on a polymer support.
Rh(II)-catalyzed N-H insertion reaction of immobilized alpha-diazophosphonoacetate with 2-haloanilines followed by Horner-Emmons reaction gave immobilized enaminoesters, which were efficiently cyclized to indoles via intramolecular palladium catalyzed reaction on a polymer support.
Graduate School of Pharmaceutical Sciences, Tohoku University, Aobayama, Aoba-ku, Sendai 980-8578, Japan.
Kazuo
K
Yamazaki
Yoshinori
Y
Kondo