om049800z_si_002.cif (47.46 kB)
Lewis Acid Chelation of [NR]2- by 2,2‘-Diborabiphenyl: 9,11-Diboratacarbazole Heterocycles
dataset
posted on 2004-06-21, 00:00 authored by Ioan Ghesner, Warren E. Piers, Masood Parvez, Robert McDonaldA new heterocyclic framework, the dianionic
9,11-diboratacarbazole, has been prepared from a bis(trimethylphosphine)-stabilized 2,2‘-diborabiphenyl derivative, 1, and H2NR (R = Ph, CH2C6H4-p-OMe). The
heterocyclic framework is formally assembled via Lewis
acid chelation of the [NR]2- dianion by 2,2‘-diborabiphenyl. These dianions are isoelectronic with the well-studied fluorenyl monoanion.