Journal
CANADIAN JOURNAL OF CHEMISTRY
Volume 88, Issue 5, Pages 443-452Publisher
CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
DOI: 10.1139/V10-016
Keywords
CuPy2Cl2; reusable catalyst; aromatic amines; imino Diels-Alder reaction; 2-methyl-4-substituted tetrahydroquinolines
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Funding
- Council of Scientific and Industrial Research, New Delhi [01(2301)/09/EMR-II]
- UGC [KU/Sch/UGC/RFSM/2006-07/3236]
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For the first time, copper dipyridine dichloride (CuPy2Cl2) is used as an efficient and reusable catalyst for the imino Die Is Alder reaction of para-substituted anilines with N-vinylpyrrolidinone, N-vinylcarbazole, and N-vinylcaprolactam in acetonitrile to afford the corresponding 2-methyl-4-substituted-1,2,3,4-tetrahydroquinoline derivatives in excellent yields with good purity. The products were characterized by FTIR, H-1 NMR, C-13 NMR, MS, and elemental analysis.
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