TY - JOUR
T1 - Synthesis and Characterization of Bulky Aryl Derivatives of the Heavier Main Group 3 Elements
AU - Petrie, Mark A.
AU - Power, P. P.
AU - Dias, H. V.Rasika
AU - Ruhlandt-Senge, Karin
AU - Waggoner, Krista M.
AU - Wehmschulte, Rudolf J.
PY - 1993
Y1 - 1993
N2 - The synthesis and structural characterization of several bulky aryl derivatives of aluminum, gallium, and indium are described. With the exception of the previously synthesized species Al(Mes)Cl2-THF (1) and [Ga(Mes)2Cl]2 (6) (Mes = 2,4,6-Me3C6H2) the compounds are derivatives of the very crowding 2,4,6-i-Pr3C6H2− (Trip) or 2,4,6-t-BuC6H2− (Mes*) substituents, as indicated by the formulas Al(Trip)Br2(Et2O) (2), [Al(Trip)2Br]2 (3), Ga(Trip)Cl2·THF (4), [(Et2O)LiCl3-Ga(Trip)]2 (5), Ga(Trip)2Cl (X = Cl (7), Br (8)), Ga(Trip)3 (9), Al(Mes*)Br2 (10), and M(Mes*)-Cl2 (M = Ga (11), In (12)). The most interesting feature of these compounds is that, in several instances (7,8,10–12), previously unknown unassociated species can be obtained in the crystal phase with only partial substitution of the halides. In the case of compounds 10–12, uncomplexed monoaryl dihalide derivatives can be obtained even in the presence of ether. Thus, these compounds are useful precursors for the synthesis of other derivatives in which the presence of three-coordinate aluminum, gallium, or indium is desirable.
AB - The synthesis and structural characterization of several bulky aryl derivatives of aluminum, gallium, and indium are described. With the exception of the previously synthesized species Al(Mes)Cl2-THF (1) and [Ga(Mes)2Cl]2 (6) (Mes = 2,4,6-Me3C6H2) the compounds are derivatives of the very crowding 2,4,6-i-Pr3C6H2− (Trip) or 2,4,6-t-BuC6H2− (Mes*) substituents, as indicated by the formulas Al(Trip)Br2(Et2O) (2), [Al(Trip)2Br]2 (3), Ga(Trip)Cl2·THF (4), [(Et2O)LiCl3-Ga(Trip)]2 (5), Ga(Trip)2Cl (X = Cl (7), Br (8)), Ga(Trip)3 (9), Al(Mes*)Br2 (10), and M(Mes*)-Cl2 (M = Ga (11), In (12)). The most interesting feature of these compounds is that, in several instances (7,8,10–12), previously unknown unassociated species can be obtained in the crystal phase with only partial substitution of the halides. In the case of compounds 10–12, uncomplexed monoaryl dihalide derivatives can be obtained even in the presence of ether. Thus, these compounds are useful precursors for the synthesis of other derivatives in which the presence of three-coordinate aluminum, gallium, or indium is desirable.
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U2 - 10.1021/om00028a025
DO - 10.1021/om00028a025
M3 - Article
AN - SCOPUS:0001274190
SN - 0276-7333
VL - 12
SP - 1086
EP - 1093
JO - Organometallics
JF - Organometallics
IS - 4
ER -