Complex sentence: The most common classes of metallated compounds are organolithium reagents and Gringard reagents, though others, such as organozinc compounds, also observe significant use in both laboratory and industrial applications.
Split into simpler sentences: The most common classes of metallated compounds are organolithium reagents and Gringard reagents. However, other organometallic compounds--such as organozinc compounds--also observe significant use in both laboratory and industrial applications.