Complex sentence: On the other hand organocopper reagents are used very frequently in organic chemistry as alkylating reagents prepared in situ in an inert environment with in general more functional group tolerance than corresponding Grignards or organolithium reagents.
Split into simpler sentences: On the other hand organocopper reagents are used very frequently in organic chemistry as alkylating reagents prepared in situ in an inert environment. They have in general more functional group tolerance than corresponding Grignards or organolithium reagents.