AbstractA number of examples of the 6‐azabicycIo[3.1.0]hexane ring system have been prepared by the oxidation of N‐aminophthalimide or 3‐amino‐2‐methyl‐4‐quinazoIone with lead tetraacetate in the presence of variously substituted cyclopentenes.Thus, 6‐phthalimidyl‐6‐azabicyclo[3.1.0]hexane, dimethy 1–6‐phthalimidyl‐6‐azabicyclo[3.1.0]‐hexane‐1,5‐dicarboxylate, 2,3‐benzo‐6‐phthalimidyl‐6‐azabicycIo[3.1.0]hexane and N‐3‐(2‐methyl‐4‐quinazolyl)‐6‐azabicyclo [3.1.0]hexane were prepared for the first time. All of the new compounds were found to be stable in refluxing carbon tetrachloride and chlorobenzene. Refluxing 6‐phthalimidyl‐6‐azabieyclo[3,1.0]hexane in acetic acid for 24 hours resulted in quantitative rearrangement to a phthalohydrazide, 8.
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