The synthesis of several chiral tropocoronands (6 and 7) has been accomplished. These compounds have been shown to complex with various metals. Tropocoronands that have been synthesized include H2(TC-3, cyhex) through H2(TC-6, cyhex) (6) and H2 (TC-3, diphen) through H2(TC-6, diphen) (7). The route is short and the tropocoronands are easily purified by chromatography or recrystallization. Two other groups have been incorporated into tropocoronands, H2(TC-3, binap) (9) and H2(TC-6, pent) (10).
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This research was supported in part by the donors of the Petroleum Research Fund, and administered by the American Chemical Society; Research Corporation; the University of Wisconsin–Eau Claire; and the National Institutes of Health.
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