Bis(amidate)bis(amido) Titanium Complex: A Regioselective Intermolecular Alkyne Hydroamination Catalyst
作者:Jacky C.-H. Yim、Jason A. Bexrud、Rashidat O. Ayinla、David C. Leitch、Laurel L. Schafer
DOI:10.1021/jo402668q
日期:2014.3.7
o) titanium precatalyst for the anti-Markovnikov hydroamination of alkynes is reported. Hydroamination of terminal and internal alkynes with primary alkylamines, arylamines, and hydrazines is promoted by 5–10 mol % of Ti catalyst. Various functional groups are tolerated including esters, protected alcohols, and imines. The in situ generated complex shows comparable catalytic activity, demonstrating
Synthesis of 3-Alkoxyindoles <i>via</i> Palladium-Catalyzed Intramolecular Cyclization of N-Alkyl <i>ortho</i>-Siloxyallylanilines
作者:Matthew Gowan、Alain Caillé、Cheuk Lau
DOI:10.1055/s-1997-1022
日期:1997.11
Palladium-catalyzed intramolecular cyclization of N-alkyl-ortho-siloxyallylaniline leads to the synthesis of N-alkyl-3-siloxy-indoles. Treatment of the latter with fluoride followed by in situ trapping of the resulting alkoxides with various alkyl halides gives the corresponding N-alkyl-3-alkoxyindoles.