An increasing number of therapeutic agents, including antiarrythmic, antipsychotic, and antitumor compounds, have structures which incorporate a 1, f-diamine function. As an extension of our program'dealing with the preparation of cyclopropane compounds of biological interest? we required a method for the synthesis of a series of 1, 2- diaminoethanes in which one of the carbon atoms is incorporated into a cyclopropane ring ...