Aminopyridinato Titanium Catalysts for the Hydroaminoalkylation of Alkenes and Styrenes
作者:Jaika Dörfler、Sven Doye
DOI:10.1002/anie.201206027
日期:2013.2.4
The linear product is formed as the major product when in situ generated titanium complexes with aminopyridinato ligands are used as catalysts for hydroaminoalkylation reactions of styrenes (see scheme). The reaction is not limited to the use of N‐methylanilines and for the first time can be performed with N‐alkylanilines bearing alkyl groups larger than methyl, or even with dialkylamines. The best
[Ind<sub>2</sub>TiMe<sub>2</sub>]: A Catalyst for the Hydroaminomethylation of Alkenes and Styrenes
作者:Raphael Kubiak、Insa Prochnow、Sven Doye
DOI:10.1002/anie.200906557
日期:2010.3.29
Metal‐catalyzed hydroaminomethylations of styrenes, which take place by CH bond activation, can be achieved in the presence of the catalyst [Ind2TiMe2] (Ind=η5‐indenyl). Corresponding reactions of 1‐alkenes with N‐methylanilines performed at temperatures between 80 °C and 105 °C usually take place with regioselectivities of better than 99:1 in favor of the branched product.