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Efficient and green syntheses of heterocycles are of great importance. In this work, we have demonstrated the synthesis of benzo[d]thiazoles and benzo[d]oxazoles using 2-acylpyridazin-3(2H)-ones as acyl transfer agents under transition-metal-free and eco-friendly conditions. It is worthy to note that the reaction is efficient, green, and economical, and will find several applications in organic synthesis, medicinal chemistry, and industrial chemistry.
Department of Chemistry & Research Institute of Natural Sciences, Graduate School for Molecular Materials and Nanochemistry, Gyeongsang National University, Jinju Gyeognam 660-701, Republic of Korea
Department of Chemistry & Research Institute of Natural Sciences, Graduate School for Molecular Materials and Nanochemistry, Gyeongsang National University, Jinju Gyeognam 660-701, Republic of Korea
Department of Chemistry & Research Institute of Natural Sciences, Graduate School for Molecular Materials and Nanochemistry, Gyeongsang National University, Jinju Gyeognam 660-701, Republic of Korea