Chemistry Letters, Vol.32, No.7, 606-607, 2003
Double nucleophilic addition of ketene silyl (thio)acetals and trimethylsilyl cyanide to alpha,beta-unsaturated aldimines promoted by aluminum chloride
In the presence of AlCl3, a mixture of ketene silyl (thio)acetal and trimethylsilyl cyanide underwent 1,4- and subsequent 1,2-addition, respectively, with alpha,beta-unsaturated imines to give ethyl(S-alkyl) 5-amino-6-cyanopentanoates in good yields.