M. Lakhrissi et al., DICHLOROCYCLOPROPANATION OF SUGAR DICHLOROOLEFINS - A NEW ROUTE TO SPIROCYCLOPROPANES AT THE ANOMERIC POSITION, Bulletin de la Societe chimique de France, 133(5), 1996, pp. 531-534
Some sugar dichloroolefins, readily available from sugar lactones, rea
ct with dichlorocarbene, generated under phase transfer catalysis, to
provide tetrachloro-C-1-spirocyclopropanes in good yields. These new c
ompounds have been reduced to spirocyclopropanes anchored at the anome
ric position.