Metal-free one-pot sequential direct diarylation of pyrazolin-5-ones with diaryliodonium salts†
Abstract
A novel and efficient one-pot sequential C4-diarylation of pyrazolin-5-ones with diaryliodonium salts in the absence of a metal catalyst was reported. A variety of C4-diarylated pyrazolin-5-one derivatives were obtained in good to high yields under mild conditions.