Ac. Oleary et al., TRANSFORMATION OF 3-ISOPROPENYLAZETIDIN-2-ONES TO 3-[1-(HYDROXYMETHYL)ETHYLIDENE]AZETIDIN-2-ONES, Journal of chemical research. Synopses, (8), 1996, pp. 368
3-Vinyl- and 3-isopropenyl-azetidin-2-ones can be transformed into the
corresponding 3-(2-hydroxyethylidene)azetidin-2-one and 3-[1-(hydroxy
methyl)ethylidene]azetidin-2-ones which are intermediates for the synt
hesis of asparenomycin-type carbapenem antibiotics.