Abstract: | When treated with 855 sulfuric acid at 85°C, gem-benzylaminoallylcyclohexane is converted to spiro[tetrahydrobenz-2-azepine-3-cyclohexane], while at 20°C or in boiling chloroform 3,4,5,6-tetrahydro-3-benzyl-6-methylspiro[1,2,3-oxathiazine-2,2-dioxide-4-cyclohexane] is formed as the major product. The second compound is cleaved by alcohol solution of alkali to 1-benzyl-4-methylspiro[azetidine-2-cyclohexane].Russian University of International Friendship, Moscow 117198. School of Chemistry, Industrial University of Santander, Bucaramanga, A. A. 678, Colombia. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 223–227, February, 1999. |