Journal of the American Chemical Society p. 4977 - 4987 (1984)
Update date:2022-09-26
Topics:
Katz, Howard E.
Cram, Donald J.
Six new types of macrocycles and one open- chain analogue are described, along with their conformational behavior and binding free energies toward alkali metal, ammonium, and alkylammonium picrates.The cycles are 20-membered and are composed by attaching aryloxy, cyclic urea, pyridyl, ethylene, methylene, and oxygen units to one another.The structures and points of attachment of all but the latter two units are drawn and are symbolized by capital letters.
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