Diverse Reactivity of Dialkylaluminum Dimesitylboryloxides [(μ-Mes2BO)AlR2]2. Synthetic and Structural Study

Romana Anulewicz-Ostrowska , Sergiusz Luliński , Janusz Serwatowski , Kinga Suwińska


Several 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.
Author Romana Anulewicz-Ostrowska - [University of Warsaw (UW)]
Romana Anulewicz-Ostrowska,,
- Uniwersytet Warszawski
, Sergiusz Luliński (FC / DPC)
Sergiusz Luliński,,
- Department Of Physical Chemistry
, Janusz Serwatowski (FC / DPC)
Janusz Serwatowski,,
- Department Of Physical Chemistry
, Kinga Suwińska - [Institute of Physical Chemistry of the Polish Academy of Sciences]
Kinga Suwińska,,
Journal seriesInorganic Chemistry, ISSN 0020-1669
Issue year2000
ASJC Classification1604 Inorganic Chemistry; 1606 Physical and Theoretical Chemistry
URL http://dx.doi.org/10.1021/ic9914286
Languageen angielski
Score (nominal)40
Score sourcejournalList
Publication indicators Scopus Citations = 29; WoS Citations = 24; Scopus SNIP (Source Normalised Impact per Paper): 2000 = 1.367; WoS Impact Factor: 2006 = 3.911 (2) - 2007=4.04 (5)
Citation count*23 (2014-12-11)
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