A review on DBN (1,5-Diazabicyclo[4.3.0]non-5-ene) toward development of organic transformations

1,5-Diazabicyclo[4.3.0]non-5-ene (DBN) has established a substantial prominence in organic synthesis during recent years due to its fascinating capability for organic transformations. The regioselectivity and stereoselectivity of different organic reactions is greatly notable and pertinent in modern chemical transformations. It has notable advantages like less expensive, easy handling, ready commercial availability and recoverable. In recent decades, the DBN has effectively used for numerous organic transformations such as acylation reactions, synthesis of heterocycles, reactions with CO2, carbonylation reaction, Phospha-Brook rearrangement, Heck-Matsuda reaction, coupling reactions, metal-free synthesis of phthalocyanines and related macrocycles and designing of different organic molecules as substrate. Essentially, an incredible attention has flashed in several organic transformations endorsed by DBN with numerous publications appearing in the literature and recognised its importance in organic synthesis is summarized in this review using DBN.