Highly unsaturated three-bladed propeller molecules. Synthesis and ring inversion dynamics of two [4.4.4]propellatrienetriones
Abstract
The kinetic parameters for antipodal ring inversion were measured for two [4.4.4]propellatrienetriones; the ΔG‡(298K) values show the incorporation of three–CHCHCO– units does little to increase the barrier and allow for their possible isolation in optically active form.