Preparation and Decomposition of Potassium Alkalide−Lipophilic Crown Ether Complexes in Tetrahydrofuran
作者:Zbigniew Grobelny、Andrzej Stolarzewicz、Barbara Morejko-Buz、Richard A. Bartsch、Kazuhiro Yamato、Fernando A. Fernandez、Adalbert Maercker
DOI:10.1021/jo026086r
日期:2002.11.1
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.