1, 2, 4??triazines. 1. A convenient synthesis of 4, 5??dihydro??1, 2, 4??triazin??3??(2H) one and its 6??substituted derivatives

Y Nakayama, Y Sanemitsu, M Mizutani…

Index: Nakayama, Yoshinori; Sanemitsu, Yuzuru; Mizutani, Masato; Yoshioka, Hirosuke Journal of Heterocyclic Chemistry, 1981 , vol. 18, p. 631 - 632

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Citation Number: 8

Abstract

Although several methods for syntheses of 4,5-dihydro- ... We wish to report a facile route to 4,5-dihydro-1,2,4- ... 1,2,4-triazin-3-(2H)one and its 6-substituted derivatives ... 2b-h. They were prepared by the reduction with sodium ... Table 1 Synthesis of 4,5-Dihydro-l,2,4-triazin-342H )one Derivatives ... Compound R, R2 Yield (%) Mp ("C) Pmr Spectral Data (6) ... H 70.6 CH3 88.4 CH(CH3), 73.6 ... C,H, 68.5 H 82.5 CJI, 71.7 C6HS 74.0 ... (a) Lit. (4) 135.136'. (b) ...