P. Aufranc et al., REGIOSELECTIVE PALLADIUM(0) CATALYZED AZIDATION AND AMINATION OF 1-ALKENYLCYCLOPROPYL ESTERS - A NEW ROUTE TO 2,3-METHANOAMINO ACIDS, Tetrahedron letters, 34(26), 1993, pp. 4193-4196
Palladium (0) catalyzed azidation of 1-alkenylcyclopropyl esters provi
des regioselectively 1-azido-1-alkenyl cyclopropanes, convenient precu
rsors of 2,3-methanoamino acids. On the other hand, amination occurred
exclusively on the less substituted allylic end, providing strained 2
-cyclopropylideneethylamine derivatives.