Synthesis and characterization of sterically crowded aryloxides: 'Mitsubishi'-class of tetrametallic aluminum complexes. (29th March 2017)

• Record Type: Journal Article
• Authors: Konishi, Akihito; Nakajima, Hideto; Maruyama, Hikaru; Yoshioka, Sachiko; Baba, Akio; Yasuda, Makoto
• Is Part Of: Polyhedron. Volume 125(2017)
• Page Start: 130
• Page End: 134
• Publication Date: 2017-03-29
• Subjects: Tripodal ligand -- Aluminum complex -- Mitsubishi-type molecules -- Cage-shape -- Crystal structure; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2016.10.019
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: Tetrameric aluminum molecules with a Mitsubishi structure, composed of two cage-shaped triphenolic ligands, have been synthesized and characterized. Transmetalation from the cage-shaped borates was a proper method for the synthesis of these aluminum complexes. These aluminum complexes behaved as the Lewis acid catalyst for a hetero Diels–Alder reaction. Abstract: A new series of tetrameric aluminum molecules with a Mitsubishi structure, composed of two cage-shaped triphenolic ligands with a tripod-chelated structure, have been synthesized and characterized. Transmetalation from the cage-shaped borates was a proper method for the synthesis of these aluminum complexes. All complexes were determined via X-ray crystallography and NMR measurements. These Lewis acidic aluminum complexes catalyze the hetero Diels Alder reaction of the Danishefsky diene with benzaldehyde.