Thieme Gruppe, Synlett: Accounts and Rapid Communications in Synthetic Organic Chemistry, 19(28), p. 2642-2646, 2017
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Facile diastereoselective access to functionalized oxazol-5-ones and dihydroimidazoles was accomplished through base-promoted intramolecular amidolysis and methoxide-assisted tandem intramolecular amidolysis/ring opening/intramolecular cyclization, respectively, of C-3-functionalized azetidin-2-ones.