%0 Generic %A Ghesner, Ioan %A Piers, Warren E. %A Parvez, Masood %A McDonald, Robert %D 2004 %T Lewis Acid Chelation of [NR]2- by 2,2‘-Diborabiphenyl:  9,11-Diboratacarbazole Heterocycles %U https://acs.figshare.com/articles/dataset/Lewis_Acid_Chelation_of_NR_sup_2_sup_by_2_2_Diborabiphenyl_9_11_Diboratacarbazole_Heterocycles/3335245 %R 10.1021/om049800z.s002 %2 https://ndownloader.figshare.com/files/5174461 %K dianion %K CH 2 C 6 H 4 %K H 2 NR %K heterocyclic framework %K Lewis acid chelation %K diborabiphenyl %X A 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. %I ACS Publications