M. Cano et al., UNEXPECTED FORMATION OF N-(2-CYCLOPROPENYL)PHTHALIMIDES IN THE PHOTOSENSITIZED DECARBOXYLATION OF N-(2-CYCLOPROPENYLCARBONYLOXY)PHTHALIMIDES, Tetrahedron letters, 39(9), 1998, pp. 1079-1082
The photosensitized decarboxylation of N-(2-cyclopropenylcarbonyloxy)p
hthalimides 1 smoothly generates N-(2-cyclopropenyl)phthalimides 3 ins
tead of the corresponding 3-unsubstituted cyclopropene derivatives. On
the other hand, the photolytic reaction of cyclopropyl substrate 5 pr
oceeds as expected to give cyclopropane derivative 6, thus suggesting
a different reactivity of cyclopropen-3-yl and cyclopropyl putative in
termediate radicals in this decarboxylation process. (C) 1998 Elsevier
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