The Use of Anhydrous Barium Hydroxide for Selective Alkylation of Dialkyloxy-<i>tert</i>-butyl-calix[4]arenes

A practical method of selective alkylation of the third hydroxyl group of disubstituted tert-butyl-calix[4]arenes using anhydrous barium hydroxide as a base was developed in this study. The use of this method in the synthesis of inherently chiral derivatives is shown herein

The Use of Anhydrous Barium Hydroxide for Selective Alkylation of Dialkyloxy-tert-butyl-calix[4]arenes

A practical method of selective alkylation of the third hydroxyl group of disubstituted tert-butyl-calix[4]arenes using anhydrous barium hydroxide as a base was developed in this study. The use of this method in the synthesis of inherently chiral derivatives is shown herein

Chiral phosphorus-containing calixarenes

International audiencePhosphorus-containing inherently chiral calix[4]arenes as well as calix[4]arenes substituted with phosphinoferrocene chiral groups at the lower rim are described. Stereoselective synthesis, structure, and catalytic properties of the chiral calixarenes are discussed