Hydrogen-bond-induced selectivity of a head-to-head photo-dimerisation of dialkynylanthracene – access to tetradentate Lewis acids
Philipp Niermeier, Kristina A. M. Maibom, Jan‐Hendrik Lamm, Beate Neumann, Hans‐Georg Stammler, Norbert W. Mitzel
Abstract
-isomer in large excess. Cleavage of the protecting groups under basic conditions affords a rigid hydrocarbon skeleton with four directional functions. This was used as a building block for a tetradentate boron Lewis acid. Its applicability as a host for Lewis-base substrates was demonstrated by the formation of adducts with various nitrogen bases. Adduct formation with hydrazine leads to impressive networks between the tetraboron host and the substrate molecules.
Topics & Concepts
Head (geology)Lewis acids and basesSelectivityPhotochemistryChemistryHydrogen bondHydrogenOrganic chemistryCatalysisMoleculeGeomorphologyGeologyCrystallography and molecular interactionsOrganoboron and organosilicon chemistryAsymmetric Synthesis and Catalysis