1. Strecker, A., Ann. Chem. Pharm., 1850, vol. 75, p. 27.
2. Bucherer, H.T. and Steiner, W., J. Prakt. Chem., 1934, vol. 140, p. 291.
3. Evans, D.A., Truesdale, L.K., and Carroll, G.L., J. Chem. Soc., Chem. Commun., 1973, p. 55.
4. Bauer, O.W. and Teter, J.W., US Patent no. 2 552 026; Chem. Abstr., 1951, vol. 45, p. 9074.
5. Domkin, V.D. and Kur’yanovich, A.A., Zh. Org. Khim., 1976, vol. 12, p. 908.