Rh-catalyzed hydroformylation of 2-arylpropenes becomes available using an unprecedented PNP ligand. The protocol provides a powerful strategy to access a wide library of 3-aryl-butyraldehydes with excellent selectivity and scalability. A concise total synthesis of rac-ar-turmerone is also pursued to demonstrate the practical nature of this protocol.
A compound having the structure (A) where R1 is C1 to C5 alkyl, and R2 to R5 are independently selected from H and methyl, having a strong odour and for use as a perfumery ingredient, particularly in Muguet accords/fragrances, is provided.
A compound having the structure (A) where R1 is C1 to C5 alkyl, and R2 to R5 are independently selected from H and methyl, having a strong odor and for use as a perfumery ingredient, particularly in Muguet accords/fragrances, is provided.