Chiral crown ethers derived from (+)-(1S, 2S)-trans-cyclohexane-1,2-diol

Abstract

Preparations are described of (+)-trans,anti,trans-dicyclohexyl-18-crown-6(2), (+)-trans-cyclohexyl-15-crown-5 (5), and (+)-trans-cyclohexyl-18-crown-6 (6) from (+)-trans-cyclohexane-1,2-diol. Each of the crown ethers was converted into a typical cryptate.