[Cd2(tren)2(dl-alaninato)](ClO4)3: an efficient water-compatible Lewis acid catalyst for chemo-, regio-, and diastereo-selective allylation of various aldehydes
作者:Dongsheng Deng、Ping Liu、Baoming Ji、Li Wang、Weijun Fu
DOI:10.1016/j.tetlet.2010.08.047
日期:2010.10
(I) (tren = tris(2-aminoethyl)amine) as an efficient water-compatible Lewis acid catalyst for the allylation of aldehydes in aqueousmedia was described. The reaction proceeded smoothly to afford the corresponding homoallyl alcohols in up to 96% yield. Additionally, cinnamyltributylstannane was selected as the allylation reagent, the regio- and diastereoselectivity of the reaction favors the formation
Double Chiral Induction Enables a Stereoselective Carbonyl Allylation with Simple Alkenes under the Sequential Catalysis of Palladium Complex and Chiral Phosphoric Acid
作者:Lu-Lu Li、Zhong-Lin Tao、Zhi-Yong Han、Liu-Zhu Gong
DOI:10.1021/acs.orglett.6b03378
日期:2017.1.6
An enantioselective carbonyl allylation of aldehydes with simple alkenes has been achieved via a one-pot protocol consisting of a Pd-catalyzed allylic C–H borylation with bis(pinanediolato)diboron and a chiral Brønsted acidcatalyzed asymmetric allylborylation, delivering homoallylic alcohols in high yields and with excellent diastereo- and enantioselectivities. The double chiral induction of chiral