1, 5, 9-Trioxacyclododecane and 3, 3, 7, 7, 11, 11-hexamethyl-1, 5, 9-trioxacyclododecane: novel lithium cation complexing agents

…, J Eggestad, SB Fredriksen, P Groth

文献索引：Dale, Johannes; Eggestad, Jan; Fredriksen, Siw B.; Groth, Per Journal of the Chemical Society, Chemical Communications, 1987 , # 18 p. 1391 - 1393

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被引用次数: 9

摘要

12-Crown-3 and its hexamethyl derivative, obtained in good yield from oxetane and from 3, 3-dimethyloxetane, give stronger complexation than the corresponding 16-crown-4 ligands, and the high selectivity for lithium as compared with sodium and magnesium is retained for Me6-12-crown-3, but is lost for 12-crown-3 owing to the formation of sandwich complexes; X- ray crystal structures are reported for 12-crown-3· LiNCS, Me6-12-crown-3· LiClO4, and ...