Ru(ii)-catalyzed C6-selective C-H acylmethylation of pyridones using sulfoxonium ylides as carbene precursors.
Ru(ii)-catalyzed C6-selective C-H acylmethylation of pyridones using sulfoxonium ylides as carbene precursors.
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In this study, we describe a method using sulfoxonium ylides as carbene precursors to achieve C6-selective acylmethylation of pyridones catalyzed by a ruthenium(ii) complex. This approach featured mild reaction conditions, moderate to excellent yields, high step economy, and had excellent functional group tolerance with good site selectivity. Besides, gram-scale preparation, synthetic utility, and mechanistic studies were conducted. It offers a direct and efficient way to synthesize pyridone derivatives. In this study, we describe a method using sulfoxonium ylides as carbene precursors to achieve C6-selective acylmethylation of pyridones catalyzed by a ruthenium(ii) complex.
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