Synthese von 3-DBU-closo-2-CB6H6 und [3-Cl-closo-2-CB6H6]- - eine erste einfache Synthese für [CB6]-closo-Cluster

Eduard Bernhardt (1) , Florian Schlüter (2)

1 Anorganische Chemie
2 FB C - Anorganische Chemie

The closo-hydro-borate [B6H6]2- reacts with DBU in chloroform to give a mixture of two different seven-vertex monocarboranes, 3-DBU-closo-2-CB6H6 and [3-Cl-closo-2-CB6H6]-. Dichlorocarbene, which is generated in situ by the reaction of DBU with chloroform at elevated temperatures, subsequently inserts into the [B6H6]-closo-cluster to result in 3-DBU-closo-2-CB6H6 as main product [3-Cl-closo-2-CB6H6]- was obtained as a byproduct. Both novel carboranes were isolated and characterized by 1H, 1H{11B}, 11B, 11B{1H} and 13C NMR spectroscopy. The structures of 3-DBU-closo-2-CB6H6 as well as [3-Cl-closo-2-CB6H6]- were determined by single-crystal X-ray diffraction.

Mots clés: Physical Sciences

Eduard Bernhardt, Florian Schlüter. Synthese von 3-DBU-closo-2-CB6H6 und [3-Cl-closo-2-CB6H6]- - eine erste einfache Synthese für [CB6]-closo-Cluster. Journal of Inorganic and General Chemistry / Zeitschrift für anorganische und allgemeine Chemie, 2010, 636 (13-14), pp.2462. ⟨10.1002/zaac.201000144⟩. ⟨hal-00592046⟩