Td. Avery et al., Exploitation of ylide steric bulk to alter cyclopropanation outcome duringthe reaction of 1,2-dioxines and stabilised phosphorus ylides, J CHEM S P1, 9, 2000, pp. 1319-1321
A new approach for the synthesis of diastereomerically pure cyclopropanes f
rom 1,2-dioxines and sterically bulky stabilised phosphorus ylides is prese
nted.