P,C-Stereogenic propargyl alcohols RC-3/SC-3' were prepared by the addition of (L)-menthyl-derived SPOs to propynals, which were converted to P,axial-stereogenic allenyl bisphosphine oxides. The chirality transfer was controlled by α-carbon via syn [2,3]-sigmatropic rearrangement. For SC-3' linking weak WDG on the alkynyl moiety, the chirality on the axis depended on stereogenic phosphorus.

中文翻译：

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通过手性转移立体选择性地制备P，轴向立体异构的烯基双膦氧化物。

P，C-立体异构炔丙醇RC-3 / SC-3'是通过将（L）薄荷基SPO加到丙炔中制备的，然后将其转化为P，轴向立体异构的烯基双膦氧化物。手性转移是由α-碳通过syn [2,3]-σ重排控制的。对于连接炔基部分上的弱WDG的SC-3'，轴上的手性取决于立体磷。