Abstract
Enantioselectivity of the cyclization of 1 varies at different stages in the reaction. X-ray crystallography has shown that 1 exists as enantiomerically pure (M) and (P) chiral helical structures defined by the relative orientations of the arene, amide, and alkene. The relative rates of interconversion of the rotamers of 1 have been established, leading to mechanistic proposals to account for the variation of ee based on kinetic resolution effects.
Original language | English |
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Pages (from-to) | 2917-2920 |
Number of pages | 4 |
Journal | Organic Letters |
Volume | 8 |
Issue number | 14 |
DOIs | |
Publication status | Published - 2006 |