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Microwave-assisted one-pot synthesis of benzo[b][1,4]oxazin-3(4H)-ones via Smiles rearrangement |
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| Authors: | Hua Zuo Lijuan Meng Kyu-Hyeon Hwang S. Chandrasekhar Dong-Soo Shin |
| Affiliation: | a Departments of Chemistry, Biochemistry and Health Science, Changwon National University, Changwon, 641-773, South Korea b Organic Chemistry Division-I, Indian Institute of Chemical Technology, Hyderabad 500 007, India c College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China |
| Abstract: | An efficient method for the synthesis of benzo[b][1,4]oxazin-3(4H)-ones via Smiles rearrangement using a microwave-assisted one-pot, three-step reaction has been developed. Various benzo[b][1,4]oxazin-3(4H)-ones are obtained in good yields (55-86%) from the corresponding substituted 2-chlorophenols and primary amines in short reaction time (18-40 min). |
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