Palladium catalysed 3-component cascade synthesis of bis(2-arylallyl) tertiary amines from aryl iodides, allene and primary amines

A 3-component cascade synthesis of bis(2-arylallyl) tertiary amines from ar yl iodide, allene and primary aliphatic amines is described; chiral amines give analogous products with no detectable racemisation; mixtures of two di fferent aryl iodides can be utilised to give the mixed tertiary amines as t he sole, or major, product; the reaction is sensitive to stereoelectronic e ffects which lead to mono(2-arylallyl) secondary amines.