2-[(Acylamino) methyl]-6-methylpyrimidin-4 (3H)-ones. Novel precursors for the synthesis of imidazo [1, 5-a] pyrimidines and imidazo [4, 5-b] pyridines

N Katagiri, A Koshihara, S Atsuumi…

Index: Katagiri, Nobuya; Koshihara, Akemi; Atsuumi, Shugo; Kato, Tetsuzo Journal of Organic Chemistry, 1982 , vol. 47, # 1 p. 167 - 169

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Abstract

(22) Compound 42 IR (CC14) 3320 (a), 3025 (w), 2930 (a), 2860 (a), 1725 (a), 1650 (w), 970 cm-'(a); NMR (400 MHz, CDC13) 6 1.20-1.58 (m, 17 H), 1.84 (dd, J= 7.2 Hz, J'= 1.4 Hz, 3 H), 1.94 (t, J= 2 Hz, 1 H), 2.18 (dt, J= 2.5 Hz, J'= 7 Hz, 2 H), 6.03 (qd, J= 6.8 Hz, J'= 16.2 Hz, 1 H), 6.15 (d, J= 15.9 Hz, 1 H), 6.57 (t, J= 7.4 Hz, 1 H).(23) Booth, J.'Progress in NMR Spectroscopy"; Pergamon Press: Oxford, 1969; Vol. 5, pp 185-6.