A rapid and efficient procedure for allylation and benzylation of aldimines mediated by zinc powder under solvent-free conditions is described. The procedure is operationally simple, higher regioselective, and gives good to excellent yields.
Homoallylic amines are synthesized by the three-component coupling reaction of aldehydes, amines and allyltributylstannane using a heterogeneous solid acid catalyst, montmorillonite KSF, under mild reaction conditions to afford the corresponding homoallylic amines in excellent yields.
Highly efficient synthesis of homoallylic alcohols and amines via allylation of aldehydes and imines catalyzed by ZrOCl2·8H2O in water
作者:Wei Shen、Li-Min Wang、Jian-Jun Feng、He Tian
DOI:10.1016/j.tetlet.2008.04.084
日期:2008.6
The allylation of aldehydes and imines has efficiently been carried out by treatment with allyltributylstannane in the presence of a catalytic amount of ZrOCl2·8H2O in water to form the corresponding homoallylic alcohols and amines, respectively, in high yields.
A Simple and Efficient Method for the Three-Component Synthesis of Homoallylic Amines Catalyzed by Indium Triflate
作者:A. Narsaiah、J. Kumar、P. Narsimha
DOI:10.1055/s-0029-1219762
日期:2010.5
Indium triflate catalyzes efficiently the one-pot three-component condensation of aldehydes, amines, and allyltributylstannane to afford the corresponding products of homoallylic amines in excellent yields at room temperature. All reactions were carried out using the catalyst in 10 mol%. This methodology was successfully applied to a variety of aldehydes and amines. aldehydes - amines - allyltributylstannane
Three-component reactions of nitroarenes, benzaldehydes, and allyltributylstannane using indium in dilute aqueous HCl at room temperature afford the corresponding homoallylic amines in high yields within 5-10 min. The conversion in one-pot synthesis involves the following steps: (i) reduction of nitro compounds to amines, (ii) formation of imines from amines and aldehydes, and (iii) allylation of imines. (C) 2008 Elsevier Ltd. All rights reserved.