Mechanistic insight into initiation and regioselectivity in the copolymerization of epoxides and anhydrides by Al complexes. Issue 90 (25th October 2020)

• Record Type: Journal Article
• Authors: Popowski, Yanay; Moreno, Juan J.; Nichols, Asa W.; Hooe, Shelby L.; Bouchey, Caitlin J.; Rath, Nigam P.; Machan, Charles W.; Tolman, William B.
• Is Part Of: Chemical communications. Volume 56:Issue 90(2020)
• Page Start: 14027
• Page End: 14030
• Publication Date: 2020-10-25
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d0cc05652a
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Pentacoordinate Al catalysts comprising bipyridine (bpy) and phenanthroline (phen) backbones were synthesized, their activity in epoxide/anhydride copolymerization studied, and the products of stoichiometric ring-opening of anhydrides characterized. Abstract : Pentacoordinate Al catalysts comprising bipyridine (bpy) and phenanthroline (phen) backbones were synthesized and their catalytic activity in epoxide/anhydride copolymerization was investigated and compared to ( t -Bu salph)AlCl. Stoichiometric reactions of tricyclic anhydrides with Al alkoxide complexes produced ring-opened products that were characterized by NMR spectroscopy, mass spectrometry, and X-ray crystallography, revealing key regio- and stereochemical aspects.