Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology , Meilong Road, 130, Shanghai 200237, P. R. China.
Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, The Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China.
Org Lett. 2015 Nov 20;17(22):5654-7. doi: 10.1021/acs.orglett.5b02938. Epub 2015 Nov 2.
With a strategy that makes use of palladium activation of both C-I and vicinal C-H bonds of diaryliodonium salts, an unprecedented approach in diarylation of coumarins was reported. As such, a wide range of 4,5-benzocoumarins with potential fluorescence properties have been synthesized in good yields. A series of experiments suggested that the formation of two carbon-carbon bonds proceeded in a synergetic manner.
利用钯活化二芳基碘鎓盐的 C-I 和邻位 C-H 键的策略,报道了一种前所未有的香豆素二芳基化方法。因此,合成了一系列具有潜在荧光性质的 4,5-苯并香豆素,产率良好。一系列实验表明,两个碳-碳键的形成是协同进行的。