Tetrahedron Letters p. 6846 - 6849 (2008)
Update date:2022-08-04
Topics:
Esumi, Tomoyuki
Shimizu, Hiroyuki
Kashiyama, Akinori
Sasaki, Chizu
Toyota, Masao
Fukuyama, Yoshiyasu
The conjugate addition of lithium divinylcuprate to (4S,2′E)-3-(6′-TBDPS-3′-methylhex-2′-enoyl)-4-phenyloxazolidin-2-one proceeded efficiently to create a chiral all-carbon quaternary center with a high diastereoselectivity (R:S = 95:5). The absolute configuration of the newly generated chiral center was confirmed by applying this methodology to the total synthesis of (+)-bakuchiol.
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