The synthesis of a new type of calix[4]arene with chiral pendant

Two new chiral calixarenes were synthesized by condensing 1,3-bis-chlorocarbomethyl-calix4] arenes with (1S, 2S)-2-amino-1-(4-nitrophenyl)-1,3-propanediol, a by-product from antibiotic industry, and were characterized by¹H-NMR, MS-FAB, and elemental analysis. The¹H-NMR spectra show that those molecules assume a cone conformation in solution. Foundation item: Supported by the Zi-Qiang Science Foundation of Wuhan University Biography: He Yong-bing, (1945-), male, Professor, research direction: supramolecular chemistry.