Ruthenium-catalyzed direct C3 alkylation of indoles with α,β-unsaturated ketones
作者:Shuai-Shuai Li、Hui Lin、Xiao-Mei Zhang、Lin Dong
DOI:10.1039/c4ob02124j
日期:——
paper, a simple and highly efficient ruthenium-catalyzed direct C3 alkylation of indoles with various alpha,beta-unsaturated ketones without chelation assistance has been developed. This novel C-H activation methodology exhibits a broad substrate scope such as different substituted indoles, pyrroles, and other azoles. Further synthetic applications of the alkylation products can lead to more attractive
Conjugate addition of indoles and thiols with electron-deficient olefins catalyzed by Bi(OTf)3
作者:M.Mujahid Alam、Ravi Varala、Srinivas R. Adapa
DOI:10.1016/s0040-4039(03)01089-x
日期:2003.6
Conjugateaddition of indoles and thiols with a variety of electron-deficient olefins mediated by a catalytic amount of Bi(OTf)3 at ambient temperature to afford the corresponding Michael adducts in good to excellent yields with high selectivity is reported.
Gallium(III) triiodide catalyzed conjugate addition of indoles with α,β-unsaturated ketones
作者:Zhi-Hao Huang、Jian-Ping Zou、Wen-Qing Jiang
DOI:10.1016/j.tetlet.2006.08.108
日期:2006.11
Reactions of indoles and α,β-unsaturated ketones could be effectively catalyzed by using 10 mol % galliumtriiodide to give the corresponding Michael adducts in good to excellent yields.
InCl3-Catalysed Conjugate Addition of Indoles with Electron-Deficient Olefins
作者:J. S. Yadav、Sunny Abraham、B. V. S. Reddy、G. Sabitha
DOI:10.1055/s-2001-18068
日期:——
Indole and 2-methylindole undergo conjugate addition with electron-deficient olefins in the presence of a catalytic amount of InCl3 at ambient temperature to afford the corresponding Michael adducts in excellent yields with high selectivity.
Samarium triiodide-catalyzed conjugate addition of indoles with electron-deficient olefins
作者:Zhuang-Ping Zhan、Rui-Feng Yang、Kai Lang
DOI:10.1016/j.tetlet.2005.03.174
日期:2005.5
The SmI3-catalyzed reaction of indoles with electron-deficient olefins generated the corresponding Michael adducts in high yields. The substitution on the indole nucleus occurred exclusively at the 3-position and N-alkylation products have not been observed.