1. While the present investigation was in progress, the Michael reaction of several 2- substituted and 2,4-disubstituted imidazoles with acrylonitrile was reported. Japanese Patent, 8544 (1965);
2. Chem. Abstr., 63, 5657a (1965).
3. Chem. Abstr., 34, 4387 (1940).
4. Elemental analyses were performed by Grant Gustin and Marvin Tefft. The n.m.r. spectrum was run by Patricia Curtis.