Ru 3 (CO) 12 -catalyzed dehydrogenative Si N coupling of indoles with hydrosilanes without additive
作者:Wenchao Zhai、Bin Li、Baiquan Wang
DOI:10.1016/j.tet.2018.01.024
日期:2018.3
An efficient Ru3(CO)12-catalyzed dehydrogenative SiN coupling reaction of indoles, pyrrole, and carbazole with hydrosilanes is reported. The reaction does not need any external additive. This catalytic reaction has a wide substrate range, excellent functional group tolerance, and high to excellent reaction efficiency. Gram-scale synthesis demonstrates the practicability of this synthetic method.
Catalytic dehydrogenative Si–N coupling of pyrroles, indoles, carbazoles as well as anilines with hydrosilanes without added base
作者:C. David F. Königs、Maria F. Müller、Nuria Aiguabella、Hendrik F. T. Klare、Martin Oestreich
DOI:10.1039/c3cc38900f
日期:——
A base-free, catalytic protocol for the dehydrogenative Si-N coupling of weakly nucleophilic N-H groups of heteroarenes or aryl-substituted amines with equimolar amounts of hydrosilanes is reported. Cooperative Si-H bond activation at a Ru-S bond generates a silicon electrophile that forms a Si-N bond prior to the N-H deprotonation by an intermediate Ru-H complex, only releasing H(2).