1, 2, 4-Triazine chemistry. 10. Dihydro-1, 2, 4-triazines: structural studies of 5, 6-diaryldihydro-1, 2, 4-triazines through the reactions with dimethyl …

T Sasaki, K Minamoto, K Harada

Index: Sasaki, Tadashi; Minamoto, Katsumaro; Harada, Katsuhiko Journal of Organic Chemistry, 1980 , vol. 45, # 23 p. 4587 - 4593

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Citation Number: 10

Abstract

Corresponding N,-methylated analogues 3a-h as major products. The structures of 3a and 3b were established by their chemical conversions to known 2-methyl-5, 6-dipheny1-1, 2, 4- triazin-3 (2H)-one (6) and ita 4, 5-dihydro derivative (!;), respectively. Treatment of 3a-h with dimethyl acetylenedicarboxylate (DMAD) gave the corresponding: 2, 6-diaryl-4-methyl-5- (methylthio)-(or-5-methoxy-) 1, 8-bis (methoxycarbonyl)-3, 4, 7-triazabicyclo-[3.3. 0] octa-2, ...

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