Comparison of Solid-Phase and Solution-Phase Chiral Auxiliaries in the Alkylation/Iodolactonization Sequence to γ-Butyrolactones
作者:Michael D. Price、Mark J. Kurth、Neil E. Schore
DOI:10.1021/jo0260692
日期:2002.11.1
prolinol-based chiral auxilaries have been compared for the stereoselectivesynthesis of gamma-butyrolactones via the sequence of N-acylation, C(alpha)()-allylation, and iodolactonization under both solution-phase and solid-phase conditions. Comparisons of stereoselectivity of both the C(alpha)()-allylation and iodolactonization processes indicate that incorporation of a non-C(2)-symmetric auxiliary as a polymer