1,6-DIHYDROPYRAZINE-2,3-DICARBONITRILE
3169
1.00–1.90 [m, 13H, -(CH2)6- & CH], 3.80 (m, 1H, cyclohexyl CH), 6.85 (brs, 1H,
D2O exchangeable, -N-H), 7.07 (brs, 1H, D2O exchangeable, -N-H); 13C NMR
(75.00 MHz, DMSO-d6): d 23.14, 23.65, 23.90, 24.42, 24.79, 25.25, 31.35, 31.65,
44.30, 49.49, 52.63, 108.95, 109.76, 114.20, 117.96, 154.46; MS m=z 299 (M þ 1). Anal.
calcd. for C17 H25N5: C: 68.19; H, 8.42; N, 23.39. Found: C, 68.53; H, 8.12; N, 23.95
SUPPORTING INFORMATION
1
Full experimental details and H and 13C NMR spectra can be found via the
Supplementary Content section of this article’s Web page.
ACKNOWLEDGMENTS
We are grateful to J. P. Chaudhary for NMR spectra and D. Gurav for IR
spectra. S. M. B. is thankful to the Council of Scientific and Industrial Research,
New Delhi, for financial support.
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