NOVEMBER 1967
GROUPMIGRATIONS OF CARBENE CENTERS
methyl iodide. Gc analysis (A, 125'; B, 175') showed the principal products t o be norcarane (7) and methylene iodide in a ratio of ca. 1:3. The bromonorcaranes ( 5 and 6) were each present in trace amounts. No trace of the 7-methylnorcaranes was present (estimated