Asymmetric Intermolecular Stetter

Some articles on asymmetric, stetter:

Asymmetric Stetter Reaction
... The first asymmetric variant of the Stetter reaction was reported in 1996 by Enders et al, employing a chiral triazolium catalyst 1 ... Subsequently, several other catalysts were reported for asymmetric Stetter reactions, including 2, 3, and 4 ... to further explore this family of catalysts and expand their use for asymmetric Stetter reactions ...