A Water-Containing Organopotassium Compound Based on Bis(4,6-tBu-benzoxazol-2-yl)methanide and Its Unexpected Stability to Hydrolysis
作者： Ingo Koehne , Sebastian Bachmann , Regine Herbst-Irmer , Dietmar Stalke
关键词: Chemistry 、 Hydrolysis 、 Potassium 、 Ligand 、 Nmr titration 、 Protonation 、 Stereochemistry 、 Medicinal chemistry 、 Ion
摘要: The bulky bis(4,6-tBu-benzoxazol-2-yl)methane ligand system enabled the synthesis of water-containing organometallic potassium complex [(18-crown-6)K{(4,6-tBu-OCNC6 H2 )2 CH}⋅H2 O] (2), which is an unprecedented example a water-stable reactive organopotassium compound. Furthermore, 2 rare bis(benzoxazol-2-yl)methanide displaying solely O-coordination to metal ion. Compound was fully characterized through its solid-state structure. behavior in solution investigated by NMR titration DOSY experiments. These revealed full protonation only after seven days and addition 114 equivalents water.
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