Journal of the Chemical Society. Perkin transactions I p. 1429 - 1436 (1995)
Update date:2022-09-26
Topics:
Naemura, Koichiro
Takeuchi, Sachiko
Asada, Masaki
Ueno, Koji
Hirose, Keiji
et al.
Azophenolic crown ethers 1 and 2 of Cs symmetry incorporating cis-1-phenylcyclohexane-1,2-diol residues as a steric barrier have been prepared.Diastereotopic face selectivity in complexation with 2-methoxyethylamine, n-propylamine and ethanolamine was examined using temperature-dependent 1H NMR spectroscopy.Both bind ethanolamine stereoselectively to one of their diastereotpic faces; the prediction of which diastereotopic complex was preferentially formed is made on the basis of a CPK molecular-model examination of the complexes.
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