Complex sentence: The classical Lemieux-Johnson oxidation often generates many side products, resulting in low reaction yields; however the addition of non-nucleophilic bases, such as 2,6-lutidine, can improve on this.
Split into simpler sentences: The classical Lemieux-Johnson oxidation often generates many side products, resulting in low reaction yields. The addition of non-nucleophilic bases, such as 2,6-lutidine, can improve on this.