Anomalous one-pot transformation of 3-dimethoxymethyl-2-(N-cyanoimino) thiazolidine into 6-unsubstituted 2, 4-diamino-s-triazines by the reaction with amines

…, Y Nakamoto, K Okuno, K Maekawa, C Iwata

Index: Tanaka, Tetsuaki; Watanabe, Mayumi; Nakamoto, Yumi; Okuno, Kaori; Maekawa, Kaori; Iwata, Chuzo Journal of the Chemical Society, Chemical Communications, 1994 , # 19 p. 2301 - 2302

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Abstract

3-Dimethoxymethyl-2-(N-cyanoimino) thiazolidine 1e reacts with secondary amines to afford 2, 4-diamino-s-triazines 4 unexpectedly, while the triazine 5 bearing different amino groups at 2 and 4 positions is selectively obtained by the reaction with a mixture of two kinds of amines.