A highly efficient synthesis of (S)-(+)-N-Boc-coniine using ring-closing olefin metathesis (RCM)
作者:Eunyoung Jo、Youngim Na、Sukbok Chang
DOI:10.1016/s0040-4039(99)01081-3
日期:1999.7
Optically active (S)-(+)-coniine as an N-Boc protected form was concisely prepared starting from an amino acid, l-norvaline. The key step involved a ring-closing olefin metathesis (RCM) of the dialkenyl compound 6 to give the corresponding cyclic olefin 8 in an essentially quantitative yield.
从氨基酸I-去甲缬氨酸开始,简明地制备了具有N- Boc保护形式的旋光性(S)-(+)-芥氨酸。关键步骤涉及二烯基化合物6的闭环烯烃复分解(RCM),以基本上定量的产率得到相应的环状烯烃8。