IMPROVED SYNTHESIS OF CALIXCROWN ETHERS

IMPROVED SYNTHESIS OF CALIXCROWN ETHERS[J]. Journal of Nuclear and Radiochemistry, 2003, 25(3): 185-185.

Citation:

IMPROVED SYNTHESIS OF CALIXCROWN ETHERS[J]. Journal of Nuclear and Radiochemistry, 2003, 25(3): 185-185.

Citation:

IMPROVED SYNTHESIS OF CALIXCROWN ETHERS[J]. Journal of Nuclear and Radiochemistry, 2003, 25(3): 185-185.

Abstract

The danger factors can be eliminated by reasonable multiple-step pentthylene glycol reduced pressure distillation. Two 1,3-alternate calix4arene-crown-6 derivatives are synthesized through one pot method. The structure of related compounds is identified by melting point, mass spectrum, 1 H NMR and 13 C NMR measurements. The method may be further generalized in the synthesis of other calixcrown ethers.

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