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N, N'-Disubstituted trifluoroacetamidines for trifluoromethylated polynitrogen heterocycles.

K. Uneyama, Kenji Uneyama, Fumio Yamashita, 1990 .

2,2,2-Trifluoroacetamidins as new trifluoromethyl building blocks for fluorinated nitrogen heterocycles

K. Uneyama, Fumio Yamashita, K. Sugimoto, 1991 .