Howard Hughes Medical Institute, Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, United States.
Org Lett. 2011 Jun 3;13(11):2834-6. doi: 10.1021/ol200794w. Epub 2011 May 2.
Sequential alkyne activation of terminal alkynes and propiolic acids by gold(I) catalysts yields compounds having α-pyrone skeletons. Novel cascade reactions involving propiolic acids are reported that give rise to α-pyrones with different substitution patterns.
金（I）催化剂连续激活末端炔烃和丙炔酸，得到具有α-吡喃酮骨架的化合物。本文报道了涉及丙炔酸的新型级联反应，得到了具有不同取代模式的α-吡喃酮。
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