F. Glarner et al., 6-AZABICYCLO[3.1.0]HEX-3-EN-2-OL DERIVATIVES, PHOTOCHEMICALLY GENERATED BUILDING-BLOCKS FOR BICYCLIC BETA-LACTAMS, Helvetica Chimica Acta, 80(1), 1997, pp. 121-127
The title compounds 4 are obtained by photolysis of simple N-alkylpyri
dinium salts in H2O or alcohol. On reaction with [Fe-2(CO)(9)] in THF,
4 gives bicyclic tricarbonyliron complexes 13a-d, which on oxidative
decomplexation with eerie ammonium nitrate afford cis-fused cyclopente
no-beta-lactams 15a-d.