Synthesis and Structural Characterization of Some Alkylindium Bisphenoxides

Alkylindium bisphenoxides stabilized by a methoxy group, Me6In3(OMe)(EDBP) (1) and Me6In3(OMe)(MMBP) (2) (where EDBP-H2 = 2,2′-ethylidenebis(4,6-di-tert-butylphenol) and MMBP-H2 = 2,2′-methylenebis(4-methyl-6-tert-butylphenol)), have been synthesized in reaction of bulky bisphenols with Me3In and Me2InOMe in a 1:2:1 molar ratio of the reagents. In contrast, under the same conditions, 2,2′-methylenediphenol forms the complex without a methoxy group, Me5In3(OC6H4CH2C6H4O)2 (3), as the only product. The molecular structures of 1−3 have been determined by X-ray crystallography.