Co-Authors:
Poverenov, E., Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
Shimon, L.J.W., Unit of Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel
Milstein, D., Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
Abstract:
Quinone methides (QMs) are highly reactive compounds that play important roles in various chemical and biological processes. In this work, a stable imino-pyridine platinum(IV) complex that bears a silylprotected oxy-benzyl precursor of the quinone methide BHT - QM, derived from the food preservative 2,6-di-tert-butyl-4-metnylphenol (BHT), was prepared and fully characterized, including by X-ray structural characterization. De-silylation results in a rarely observed, fully characterized, zwitterionic intermediate η1-methylene-p-phenoxy-Pt(IV), which undergoes de-aromatization to the unstable BHT - QM, which was trapped in solution. © 2007 American Chemical Society.
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