Journal
TETRAHEDRON
Volume 68, Issue 24, Pages 4588-4595Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2012.04.034
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Funding
- Ministry of Education, Culture, Sports, Science, and Technology in Japan [20550033]
- Chiba University
- Futaba Electronics Memorial Foundation
- Grants-in-Aid for Scientific Research [20550033, 24750033] Funding Source: KAKEN
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Various electron-rich aromatics could be efficiently transformed into the corresponding aromatic nitrites in good to moderate yields by treatment with DMF and POCl3, followed by the reaction with molecular iodine or 1,3-diiodo-5,5-dimethylhydantoin (DIH) in aq NH3. Some of less reactive aromatics, such as anisole, 1,2-dimethoxybenzene, 1,4-dimethoxybenzene, and mesityrene, could be also transformed into the corresponding aromatic nitriles in good to moderate yields using N-methylformanilide and O(POCl2)(2), followed by the reaction with molecular iodine in aq NH3. Moreover, propiophenone derivatives could be successfully transformed into the corresponding beta-chlorocinnamonitriles by the reaction with DMF and POCl3, followed by the reaction with molecular iodine and aq NH3. These reactions are novel metal-free one-pot methods for the preparation of aromatic nitriles from electron-rich aromatics and beta-chlorocinnamonitriles from propiophenones. (C) 2012 Elsevier Ltd. All rights reserved.
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