New Imidazabole Derivatives: Dimers of Carbene–Borane Adducts

✍ Scribed by Itzia I. Padilla-Martínez; Francisco J. Martínez-Martínez; Armando López-Sandoval; Katia I. Girón-Castillo; Marco A. Brito; Rosalinda Contreras

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 382 KB
• Volume: 1998
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/(sici)1099-0682(199810)1998:10<1547::aid-ejic1547>3.0.co;2-5

✦ Synopsis

The preparation and characterization of five new (5), and 4,4,8,8-tetraethyl-1,5-dimethylimidazabole (6). The structures of compounds 2-6 as dimeric carbene-borane imidazabole derivatives is reported: 1,5-dibenzyl-4,4,8,8tetrahydroimidazabole (2), 4,4,8,8-tetrafluoro-1,5-dimeth-adducts rather than dimeric N-borane adducts are discussed on the basis of NMR (2-6) and X-ray diffraction data (2, 3, 5 ylimidazabole (3), 4,4-difluoro-8,8-dihydro-1,5-dimethylimidazabole (4), 4,4,8,8-tetrachloro-1,5-dimethylimidazabole and 6).