Boronate Ester Bullvalenes.
J Am Chem Soc
; 142(8): 3680-3685, 2020 02 26.
Article
en En
| MEDLINE
| ID: mdl-32041409
ABSTRACT
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 trisubstituted bullvalenes. Moreover, a linchpin strategy enables preprogrammed 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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2020
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Article