Diverse Reactivity of Dialkylaluminum Dimesitylboryloxides [(μ-Mes2BO)AlR2]2. Synthetic and Structural Study
Romana Anulewicz-Ostrowska , Sergiusz Luliński , Janusz Serwatowski , Kinga Suwińska
AbstractSeveral stable dimeric dialkylaluminum boryloxides of the formula [(?-Mes2BO)AlR2]2 (R = Me (1), Et (2), iBu) have been prepared from dimesitylborinic acid Mes2BOH and trialkylaluminums R3Al. Compound 1 has been characterized by X-ray diffraction. These compounds exhibit diverse reactivity toward protonolytic reagents depending on the bulkiness of these reagents. Treatment of 1 with tert-butyl alcohol afforded crystalline species trans-[(?-tBuO)(Mes2BO)AlMe]2 (3), which is the first example of a mixed system containing boryloxide and alkoxide ligands together. Most surprisingly, Mes2BOH was found to undergo catalytic decomposition in the presence of [(?-Mes2BO)AlR2]2 via the unexpected cleavage of one boron?carbon bond. The molecular structure of the decomposition product, i.e., trimesitylboroxin [MesBO]3 (4) is reported.
|Journal series||Inorganic Chemistry, ISSN 0020-1669|
|Publication indicators||= 29; = 24; : 2000 = 1.367; : 2006 = 3.911 (2) - 2007=4.04 (5)|
|Citation count*||23 (2014-12-11)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.