Photochemical Synthesis of Highly Functionalized Cyclopropyl Ketones
作者:Pablo Wessig、Olaf Mühling
DOI:10.1002/hlca.200390086
日期:2003.3
trisubstituted cyclopropylketones 11 were prepared by irradiation of ketones 3 and 5, which bear a leaving group adjacent to the carbonyl C-atom. The required ketones 3 could be easily synthesized either by functionalization of ketones 1 with a hypervalent iodine reagent, 2, or by O-sulfonylation of α-hydroxy ketones 7. The nitrates 5 were obtained by treatment of the corresponding α-bromo ketones with AgNO3