title: Successive iodine-magnesium or -copper exchange reactions for the selective functionalization of polyhalogenated aromatics.
abstract: [reaction: see text] The presence of an electron-withdrawing group or chelating group was found to direct the halogen-copper and halogen-magnesium exchange with various di- or trihalogenated aromatics. Starting with a triiodobenzoate derivative, a range of tetraacylated benzenes could be prepared and used for a short synthesis of benzodiazines.
authors.affiliation: Department Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377, Munich, Germany.
authors.forename: Xiaoyin
authors.initials: X
authors.lastname: Yang
authors.forename: Thomas
authors.initials: T
authors.lastname: Rotter
authors.forename: Claudia
authors.initials: C
authors.lastname: Piazza
authors.forename: Paul
authors.initials: P
authors.lastname: Knochel