and symmetrical alkynes undergo hydroaminoalkylation with tertiaryamines in the presence of a cationic titanium catalyst system, which is generated in situ. The products obtained are synthetically and pharmaceutically very interesting tertiary allylamines, which are formed in very good yields (up to 99 %) and with excellent stereoselectivity. A major highlight of the work is the successful conversion
trimethylamine and alkynes, alkenes, allenes, or a methylenecyclopropane (MCP) are achieved in the presence of titanium catalysts. The reactions take place by C–H bond activation at the methyl group of trimethylamine and therefore offer flexible and direct methods for the C–H functionalization of trimethylamine. The importance of the developed procedures for the synthesis of pharmaceutically relevant di