http://www.scielo.br/scielo.php?pid=S0103-50532011000200010&script=sci_arttext
Journal of the Brazilian Chemical Society
Print version ISSN 0103-5053
J. Braz. Chem. Soc. vol.22 no.2 São Paulo Feb. 2011
http://dx.doi.org/10.1590/S0103-50532011000200010
Spectroscopic data
1a: IR (film) ν max/cm-1: 3085, 2923, 1764, 1729, 1614, 1596, 1483, 1315, 1294, 1176, 1126, 950, 427.
1H NMRδ (200 MHz, CDCl3): 3.23 (3H, s), 6.85 (1H, d, J 8.0 Hz), 7.51-7.57 (2H, m);
13C NMR δ (50 MHz, CDCl3): 26.5 (CH3), 111.4 (CH), 118.3 (q), 125.2 (CH), 129.7 (q), 137.9 (CH), 149.8 (q), 157.8 (q), 182.4 (q);
MS (70 eV)m/z 195 [M] +, 197 [M+2] +, 160, 104.
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