期刊
CHEMICAL COMMUNICATIONS
卷 54, 期 27, 页码 3371-3374出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cc01155a
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Pyridines undergo site selective cross-coupling with secondary phosphine chalcogenides (oxides, sulfides, and selenides) in the presence of acylphenylacetylenes under metal-free mild conditions (70-75 degrees C, MeCN) to afford 4-chalcogenophosphoryl pyridines in up to 71% yield. In this new type of (SNAr)-Ar-H reaction acylacetylenes act as oxidants, being stereoselectively reduced to the corresponding olefins of the E-configuration.
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