Kumar, Atul; Verma, M.; Saxena, A. K.; Shanker, K.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1987 , vol. 26, # 1-12 p. 378 - 380
1: With hydrogenchloride; water in ethanol 1 h; Reflux; 2: With sodium nitrite in ethanol; water Cooling with ice; 3: With sodium azide in ethanol; water