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With [RhCl(CO) 2 ] 2 -amine as catalyst, the reaction of oxetanes with a hydrosilane and carbon monoxide results in ring-opening silylformylation to give γ-siloxy aldehydes in 42-83% yields. Addition of amines is essential for the silylformylation to proceed, and 1-methylpyrazole is the most effective additive among the amines examined. The ring-opening of 2-alkyloxetanes occurs...
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