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During the preparation of this manuscript a cyclopropanation reaction giving products of similarly high substitution was reported. However the reported enantioinduction was somewhat lower than ours.
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note
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3) δ 8.11 (d, J = 8.4 Hz, 2H), 7.74 (t, J = 7.6 Hz, 1H), 7.61 (t, J = 7.7 Hz, 2H), 7.49-7.43 (m, 3H), 7.41-7.38 (m, 2H), 4.04 (d, J = 7.9 Hz, 1H), 3.91 (d, J = 8.0 Hz, 1H).
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