title: An unexpected N-heterocyclic carbene-catalyzed annulation of enals and nitroso compounds.
abstract: The N-heterocyclic carbene (NHC)-catalyzed annulation of enals with nitroso compounds in the presence of DBU in THF has been described. Unexpected seven-membered 4-azalactones were formed according to a process involving a 1,2-Bamberger-type rearrangement.
authors.affiliation: Division of Chemistry and Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore.
authors.forename: Limin
authors.initials: L
authors.lastname: Yang
authors.forename: Bin
authors.initials: B
authors.lastname: Tan
authors.forename: Fei
authors.initials: F
authors.lastname: Wang
authors.forename: Guofu
authors.initials: G
authors.lastname: Zhong