References
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- 31P-NMR (CDCl3): Δ = +53.581, J p=Se839.8 HZ
- Baumgarten , P. 1926 . Ber. Dtsch. Chem. Ges. , 59 : 1166
- In the Patent literature, C. A. . 9088d . 1963 . the adduct of imidazol and sulfurtrioxide is described as a sirup
- 1H-NMR (CDCl3) imidazole ring 7.9 (s, 1 H); 9.1 (s, 1 H); 9.3 (s, 1 H); 13.4 (s, 1 H) C3H4N2O3S (148.1): Calc.: C, 24.3; H, 2.7; N, 18.9, S, 21.6%. Found: C, 24.4; H, 2.9; N, 19.1; S. 21.4%. t.t. 112–116 (CH3COCH3/CH2Cl2). Yield of recrystallized product 91%
- Abbott , S. T. , Jones , S. T. , Weinman , S. A. , Bockhoff , F. M. , McLafferty , F. W. and Knowles , J. R. 1979 . J. Am. Chem. Soc. , 101 : 4323