Unconventional Passerini Reaction toward α-Aminoxy-amides.

The Passerini multicomponent reaction (P-3CR) toward the one-step synthesis of α-aminoxy-amide, by employing for the first time a N-hydroxamic acid component, has been reported. The sonication-accelerated, catalyst-free, simple, fast, and highly efficient Passerini reaction is used for the synthesis of diverse α-aminoxy-amides. The reaction is compatible with a vast range of aldehydes, isocyanides, and N-hydroxamic acids such as N-hydroxysuccinimides and phthalimides. The generated Passerini products can be easily converted into several follow-up products.