New tin(II) and tin(IV) amidophenolate complexes

Treatment of tin amalgam with 4,6-di-tert-butyl-N-(2,6-diisopropylphenyl)-o-iminobenzoquinone (imQ) in THF results in formation of bis-(4,6-di-tert-butyl-N-(2,6-diisopropylphenyl)-o-amidophenolato)tin(IV) tetrahydrofuranate (1). The exchange reaction of imQ dilithium derivative with tin dichloride dioxanate in THF solution produces bis-[(4,6-di-tert-butyl-N-(2,6-diisopropylphenyl)-o-amidophenolato)tin(II)] (2). Stannylene (2) reacts with imQ in THF to give 1. Structures of 1 and 2 were determined by X-ray analysis.