Efficient Access to Titanaaziridines by CH Activation of<i>N</i>-Methylanilines at Ambient Temperature
作者:Manfred Manßen、Nicolai Lauterbach、Jaika Dörfler、Marc Schmidtmann、Wolfgang Saak、Sven Doye、Rüdiger Beckhaus
DOI:10.1002/anie.201500796
日期:2015.3.27
Titanaaziridines or η2‐imine titanium complexes are considered key intermediates of the titanium‐catalyzed hydroaminoalkylation of alkenes. Herein, we present an efficient synthetic route to this class of compounds, starting from N‐methylanilines and a bis(η5:η1‐pentafulvene)titanium complex. Consecutive reactions on the η2‐methyleneaniline complexes, characterized for the first time, prove a high
Titanaaziridines或η 2 -亚胺钛络合物被认为是烯烃的钛催化的hydroaminoalkylation的关键中间体。在此,我们提出了一种有效的合成路线,以这类化合物,由N- methylanilines和双启动(η 5:η 1 -pentafulvene)钛配合物。在η连续反应2 -methyleneaniline络合物,其特征在于,第一次,证明高的化学的通用性。特别是在三元钛环化合物与烯烃的反应中发现了氢氨基烷基化产物。首次分离并表征了烯烃加氢氨基烷基化的所有中间体。