Preparation and Decomposition of Potassium Alkalide−Lipophilic
Crown Ether Complexes in Tetrahydrofuran

Grobelny, Zbigniew; Stolarzewicz, Andrzej; Morejko-Buz, Barbara; Bartsch, Richard A.; Yamato, Kazuhiro; Fernandez, Fernando A.; Maercker, Adalbert

doi:10.1021/jo026086r.s001

jo026086r_si_001.pdf (17.17 kB)

Preparation and Decomposition of Potassium Alkalide−Lipophilic Crown Ether Complexes in Tetrahydrofuran

journal contribution

posted on 2002-10-02, 00:00 authored by Zbigniew Grobelny, Andrzej Stolarzewicz, Barbara Morejko-Buz, Richard A. Bartsch, Kazuhiro Yamato, Fernando A. Fernandez, Adalbert Maercker

Cyclohexano-15-crown-5, cyclohexano-18-crown-6, dicyclohexano-15-crown-5, and dicyclohexano-18-crown-6, but not dicylohexano-16-crown-5, in THF dissolve potassium metal to form dark blue potassium alkalide solutions at ambient temperature. On standing, the potassium alkalide complexes decompose and the solutions turn colorless at differing rates. Identification of the products provides insight into the decomposition mechanism.