Synthesis of macrocyclic carbonates with musk odor by ring-closing olefin metathesis

This study shows the efficiency of modern well-defined ruthenium catalysts for the formation of musk-odored macrocyclic carbonates with ring sizes between 15-23 atoms. It also reveals that, in these cases, geometric factors are very important and that smaller ring carbonates are difficult to ac-cess by ring closing metathesis, even with highly active second-generation rutilenium. catalysts. (C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004).