The N-Amidinoethylation of 2-Aminoethanol by Michael Reaction with a N,N′-Disubstituted Propenamidine

The addition of 2-aminoethanol 1 to the propenamidine 2 under neutral conditions lead to 1:1- and 1:2- adducts 3 and 4 by the Michael addition of the amino end- group to the C = C double bond of 2.