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Yuka Nakamura, Shinya Tanaka, Ryuichi Serizawa, Naoya Morohashi, and Tetsutaro Hattori. Synthesis of Mono- and 1,3-Diaminocalix[4]arenes via Ullmann-Type Amination and Amidation of 1,3-Bistriflate Esters of Calix[4]arenes. J. Org. Chem., 2011, 76 (7), pp 2168–2179
- DOI:
http://dx.doi.org/10.1021/jo102566e