Acyloin Condensation of 1,2‐Diacyloxyethanes; Directed Synthesis of Unsymmetrically Substituted 1,2‐Bis‐(trimethylsiloxy)ethenes
A synthesis specifically directed to unsymmetrically substituted 1,2‐bis‐(trimethylsiloxy)ethenes (2a–d), precursors of the corresponding acyloins, was accomplished by intramolecular acyloin condensation of the unsymmetrical 1,2‐diacyloxyethanes (1a–d) with sodium in toluene/chlorotrimethylsilane.
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