Solid sodium stannate as a high-efficiency superbase catalyst for anti-Markovnikov hydroamination and hydroalkoxylation of electron-deficient olefins under mild conditions

A solid superbase with H_ above 26.5 has been obtained through thermal treatment of sodium stannate hydrate. It was found to be an efficient catalyst for anti-Markovnikov hydroamination and hydroalkoxylation of electron-deficient olefins under mild conditions.

Graphical AbstractA novel solid superbase with basic strength (H_) above 26.5 was obtained through calcination of sodium stannate hydrate. It was found to show high catalytic efficiency towards the anti-Markovnikov hydroamination and hydroalkoxylation of electron-deficient olefins under mild conditions.Figure optionsDownload as PowerPoint slideResearch Highlights
► The calcined sodium stannate was found to show superbasicity.
► The process for the generation of the superbase is of low energy consumption.
► The as-prepared material shows high catalytic efficiency under mild conditions.
► The catalyst exhibits good thermal stability and recyclability.