Journal of the American Chemical Society

Syntheses of calcium-selective, substituted diaza-crown ethers: a novel, one-step formation of bibracchial lariat ethers (BiBLES)

VJ Gatto, GW Gokel

Index: Gatto, Vincent J.; Gokel, George W. Journal of the American Chemical Society, 1984 , vol. 106, # 26 p. 8240 - 8244

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Citation Number: 164

Abstract

Abstract: Ten N, N-disubstituted derivatives of 4, 13-diaza-18-crown-6 (7) have been prepared, three of which exhibit Ca", over either Na+ or K', selectivity. This selectivity has been achieved by utilizing polar, yet uncharged, donor groups such as carbethoxymethyl. Several of these compounds have been prepared by a novel, one-step reaction of aliphatic primary amines with triethylene glycol diicdide. The compounds prepared by this method ...

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