2-Cy~ lopropylethylamine-l-*~ C reacts with nitrous acid to give, in, 5770 yield, a mixture of 2- cyclopropylethanol, cyclopropylmethylcarbinol and cyclopentanol in relative amounts of 1. OO: O 76: 0.18. The isotope position distribution in these alcohols corresponds to an extensive rearrangement whose predominant feature is an irreversible shift of cyclopropyl from C-2 to C-1, which is uniquely determined by the conformation of the rearranging ion. ...
