title: Expression of concern: Aza-Morita-Baylis-Hillman reactions catalyzed by a cyclopropenylidene.
abstract: Expression of concern for 'Aza-Morita-Baylis-Hillman reactions catalyzed by a cyclopropenylidene' by Xun Lu et al., Chem. Commun., 2016, 52, 12980-12983.
authors.affiliation: Royal Society of Chemistry, Thomas Graham House, Science Park, Milton Road, Cambridge, UK CB4 0WF. ChemComm-rsc@rsc.org.
authors.forename: Philippa
authors.initials: P
authors.lastname: Hughes