Haak E, Bytschkov I, Doye S
Institut für Organische Chemie der Universität Hannover, Schneiderberg 1B, D-30167 Hannover (Germany).
Angew Chem Int Ed Engl. 1999 Nov 15;38(22):3389-3391.
A completely new application of dimethyltitanocene as catalyst for the intermolecular hydroamination of alkynes is presented. With this inexpensive and readily available catalyst, alkynes can be easily converted into imines, amines, and ketones (see reaction scheme).