[Cd2(tren)2(dl-alaninato)](ClO4)3: an efficient water-compatible Lewis acid catalyst for chemo-, regio-, and diastereo-selective allylation of various aldehydes

In aqueous media, the dinuclear cadmium amino acid complex, namely [Cd2(tren)2(dl-alaninato)](ClO4)3·H2O can efficiently mediate the allylation of various aldehydes to afford the corresponding homoallyl alcohols in up to 96% yield. Additionally, the reaction of cinnamyltributylstannane has regioselectivity favoring the γ-products, as well as good diastereoselectivity favoring the anti isomers.