Direct Hiyama Cross-Coupling of Enaminones With Triethoxy(aryl)silanes and Dimethylphenylsilanol
作者:Lei Bi、Gunda I. Georg
DOI:10.1021/ol202202a
日期:2011.10.21
2,3-Dihydropyridin-4(1H)-ones undergo direct C-H functionalization at C5 In the palladium(II)-catalyzed Hiyama reaction, using triethoxy(aryl)silanes and dimethylphenylsilanol. The reagent CuF2 has a dual role In the reactions with triethoxy(aryl)silanes. It Is a source of fluoride to activate the sllane in the Hiyama reaction and also serves as the reoxidant to convert Pd(0) to Pd(II) In the catalytic cycle.
A facile synthesis of novel tricyclic 4-pyridones
作者:Buzhe Xu、Zhanling Cheng、Lei Fu
DOI:10.1016/j.tetlet.2014.11.003
日期:2014.12
A new and efficient synthesis of tricyclic 4-pyridone analogs through the intramolecularHeck coupling cyclization was described. This reaction features mild conditions and good functional group tolerance allowing for the preparation of several novel tricyclic 4-pyridone analogs.