Boronate Ester Bullvalenes
2019-11-29T11:45:43Z (GMT)
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Boronate ester bullvalenes are now accessible in two to four operationally simple steps. This unlocks late-stage diversification through Suzuki cross-coupling reactions to give mono-, di-, and tri-substituted bullvalenes. Moreover, a linchpin strategy enables pre-programmed installation of two different substituents. Analysis of solution phase isomer distributions and single crystal X-ray structures reveals that isomer preference in the crystal lattice is due to general shape selectivity.
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CC BY-NC-ND 4.0