Abstract
Binaphthol-derived chiral ketones 1a-c were synthesized and were shown to serve as active catalysts for asymmetric epoxidation of olefins using Oxone®, although their enantioselectivities were not high. However, very interestingly, the stereochemical outcome of the resulting epoxides implicates that in the epoxidation using 1a-c, the planar transition state may be more favorable than the spiro transition state.
Original language | English |
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Pages (from-to) | 831-834 |
Number of pages | 4 |
Journal | Bulletin of the Korean Chemical Society |
Volume | 20 |
Issue number | 7 |
State | Published - 20 Jul 1999 |