Palladium-catalyzed polyhetero-claisen rearrangement of 4-allylthiopyrimidin-2(1h)-ones and 5-allylthio-1,2,4-triazin-3(2h)-ones |
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| Authors: | Masato Mizutani Yuzuru Sanemitsu Yoshinao Tamaru Zen-Ichi Yoshida |
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| Affiliation: | Takarazuka Research Centre, Sumitomo Chemical Co. Ltd., Takatsukasa, Takarazuka, Hyogo 665 Japan;Department of Synthetic Chemistry, Faculty of Engineering, Kyoto University, Yoshida, Kyoto 606 Japan |
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| Abstract: | The S → N allylic transposition of 4-allylthiopyrimidin-2(lH)-ones 4 and 5-allylthio-1,2,4-triazin-3(2H)-ones 5 has been performed successfully by catalysis of palladium(II) salts. In both cases the N-alkylated products (6 and 7) are obtained with no traces of the C-alkylated products. |
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