Direct correlation of cation binding strengths to Hammett parameters in substituted N-benzylaza-15-crown-5 lariat ether and N, N'-dibenzyl-4, 13-diaza-18-crown-6 …

…, J Mallen, L Echegoyen, GW Gokel

文献索引：Gustowski, Deborah A.; Gatto, Vincent J.; Mallen, Jesus; Echegoyen, Luis; Gokel, George W. Journal of Organic Chemistry, 1987 , vol. 52, # 23 p. 5172 - 5176

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被引用次数: 30

摘要

Silver (Ag+), sodium (Na+), and lithium (Li') cation binding affinities (log Ks, acetonitrile, 25 “C) have been determined by using potentiometric methods for 18 lariat ethers and bibracchial lariat ethers (BiBLEs) including nine previously unreported compounds. The N- benzylaza-15-crown-5 derivatives 1-9 bear the following substituents on the aromatic ring: H, 2-nitro, 4-nitro, 2-cyano, 4-cyano, 2-chloro, 4-chloro, 2-methoxy, and 4-methoxy. Nine ...