An approach to 1-phosphorylated isoquinolines through silver(I)-catalyzed tandem reaction involving C–N and C–P bond formation
作者:Xianbo Wang、Zhiyong Wang
DOI:10.1016/j.tet.2014.06.060
日期:2014.9
A novel silver-catalyzed tandem reaction of 2-alkynylbenzaldoximes with H-phosphinate esters, and H-phosphine oxides has been developed, providing a general and powerful tool for the synthesis of various 1-phosphorylated isoquinolins in moderate to excellent yield. This reaction proceeded smoothly to construct C–N and C–P bonds in one-pot with good functional group tolerance under mild conditions.
A silver(i)-catalyzed tandem reaction of 2-alkynylbenzaldoximes with ketenes
作者:Hongliang Liu、Gang Liu、Shouzhi Pu、Zhiyong Wang
DOI:10.1039/c3ob27427f
日期:——
A novel and unexpected reaction of 2-alkynylbenzaldoximes with ketenes in the presence of silver triflate (10 mol%) under mild conditions is discovered. This reaction proceeds through 6-endo-cyclization, [3 + 2] cycloaddition, and rearrangement, leading to isoquinoline derivatives in moderate to good yields.
1-(Isoquinolin-1-yl)urea Library Generation via Three-Component Reaction of 2-Alkynylbenzaldoxime, Carbodiimide, with Electrophile
作者:Shengqing Ye、Huanhuan Wang、Jie Wu
DOI:10.1021/co100026y
日期:2011.3.14
A novel and highly efficient three-component reaction of 2-alkynylbenzaldoxime, carbodiimide, with electrophile (bromine or iodinemonochloride) is disclosed, which generates 1-(4-haloisoquinolin-1-yl)ureas in good yields under mild conditions. Subsequent palladium-catalyzed Suzuki−Miyaura coupling reaction is introduced, leading to the diverse 1-(isoquinolin-1-yl)ureas.
Silver Triflate Catalyzed Reaction of 2-Alkynylbenzaldoxime with Phenol: A General and Facile Route to 1-Aroxyisoquinolines
作者:Zhiyong Wang、Jie Wu、Danqing Zheng
DOI:10.1055/s-0030-1260121
日期:2011.9
2-Alkynylbenzaldoxime reacts with phenol under the catalysis of silver triflate in the presence of bromo-tris-pyrrolidino-phosphonium hexafluorophosphate (PyBroP) under mild conditions, leading to the formation of 1-aroxyisoquinolines in good to excellent yields. cyclizations - isoquinoline - phosphorus ligands - phenol - silver triflate
Palladium-Catalyzed CH Oxidation of Isoquinoline N-Oxides: Selective Alkylation with Dialkyl Sulfoxides and Halogenation with Dihalo sulfoxides
作者:Bo Yao、Ren-Jie Song、Yan Liu、Ye-Xiang Xie、Jin-Heng Li、Meng-Ke Wang、Ri-Yuan Tang、Xing-Guo Zhang、Chen-Liang Deng
DOI:10.1002/adsc.201101009
日期:2012.7.9
palladium‐catalyzed CHoxidation of isoquinoline N‐oxides has been developed for regioselectively synthesizing substituted isoquinolines. The method represents the first example of using dialkylsulfoxides as the alkyl sources for the construction of 1‐alkylated isoquinolines. Moreover, the regioselective halogenation of isoquinoline N‐oxides is also successful using dihalosulfoxides as the halide sources