improving efficiency in cross-coupling reactions with dbu benzyl chloride ammonium salt introduction cross-coupling reactions are a cornerstone of modern organic synthesis, enabling the formation of carbon-carbon and carbon-heteroatom bonds with remarkable efficiency and selectivity. among the myriad of catalysts and additives used to enhance these reactions, dbu (1,8-diazabicyclo[5.4.0]undec-7-ene) benzyl chloride ammonium salt has emerged as...