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 reaction of 2-alkynylbenzaldoxime with arylsulfonyl chloride
作者:Jinming Yang、Qing Xiao、Jie Sheng、Jie Wu
DOI:10.1016/j.tet.2013.11.056
日期:2014.1
A silver-catalyzed reaction of 2-alkynylbenzaldoxime with arylsulfonyl chloride proceeds smoothly at room temperature to afford 4-tosyloxyisoquinolines in moderate to good yields. Additionally, the resulting 4-tosyloxyisoquinolines could be further elaborated through palladium-catalyzed coupling reactions leading to diverse isoquinolines.
Facile synthesis of 1-aminoisoquinolines via the tandem reactions of 2-alkynylbenzaldoximes with isothiocyanates
作者:Wenhai Li、Yue Wang、Tao Lu
DOI:10.1016/j.tet.2012.06.030
日期:2012.8
1-aminoisoquinolines in good to excellent yields is described; this involves the reaction of 2-alkynylbenzaldoximes and isothiocyanates, which is catalyzed by silver triflate in dichloromethane, at room temperature. This transformation involves tandem 6-endo cyclization, [3+2] cycloaddition, and subsequent rearrangement. The simple operational protocol provides a cost-effective, diversity-oriented route to
Facile Synthesis of 1-(Isoquinolin-1-yl)ureas by Silver Triflate Catalyzed Tandem Reactions of 2-Alkynylbenzaldoximes with Carbodiimides
作者:Shengqing Ye、Huanhuan Wang、Jie Wu
DOI:10.1002/ejoc.201001040
日期:2010.11
2-Alkynylbenzaldoximes react with carbodiimides under mild conditions and silver triflate catalysis in DMF, leading to a diverse range of 1-(isoquinolin-1-yl)ureas in good to excellent yields. This transformation involves tandem 6-endo cyclization, [3+2] cycloaddition, and subsequent rearrangement.
Generation of 1-aroxyisoquinolines via a silver-catalyzed reaction of 2-alkynylbenzaldoxime with phenol in the presence of p -toluenesulfonyl chloride
作者:Qing Xiao、Danqing Zheng、Qiuping Ding、Jie Wu
DOI:10.1016/j.tet.2013.04.076
日期:2013.6
A silver-catalyzed reaction of 2-alkynylbenzaldoxime with phenol promoted by p-toluenesulfonyl chloride leads to 1-aroxyisoquinolines in good yields. The presence of p-toluenesulfonyl chloride as an activator is essential for the successful transformation.