R.A. Ocampo et al. / Ultrasonics Sonochemistry 20 (2013) 40–46
45
57.21; 40.93; 21.14. HR-MS (EI): Anal. calcd. for C16H18O2
Acknowledgements
(242.1307): C, 79.31; H, 7.49%, found: C, 79.29; H, 7.53%.
This work was supported by grants from ANPCyT (Capital Fed-
eral, Argentina / BID 1728 / OC-AR PICT N° 2467), CONICET (Buenos
Aires, Argentina, PIP 112-200801-02272) and Universidad Nacional
del Sur (Bahía Blanca, Argentina, PGI 24/Q024). A fellowship from
CONICET to RAO is acknowledged. The generous help of Professor
M. González Sierra (IQUIR, Rosario, Argentina) in obtaining NMR
spectra is gratefully acknowledged.
4.4.2.2. 1-(3,5-Dimethoxybenzyl)-2-methylbenzene (13). Yellowish
oil, 1H NMR (CDCl3): d 7.39–7.30 (m, 2H), 7.21–7.16 (m, 2H),
6.46–6.40 (m, 3H), 3.95 (s, 2H), 3.65 (s, 6H), 2.16 (s, 3H). 13C
NMR (CDCl3): d 161.87, 143.96, 141.89, 135.51, 129.23, 128.60,
127.52, 126.00, 106.94, 99.32, 58.63, 40.12, 20.67. HR-MS (EI):
Anal. calcd. for C16H18O2 (242.1307): C, 79.31; H, 7.49%; found: C,
79.34; H, 7.45%.
References
4.4.2.3. 1-(3,5-Dimethoxybenzyl)-3-methylbenzene (14). Yellowish
oil, 1H NMR (CDCl3): d 7.26–7.00 (m, 4H), 6.34–6.30 (m, 3H), 3.86
(s, 2H), 3.75 (s, 6H), 2.30 (s, 3H). 13C NMR (CDCl3): d 160.11,
143.61, 140.70, 138.13, 130.40, 130.12, 129.67, 126.05, 107.70,
98.10, 55.70, 42.06, 22.12. HR-MS (EI): Anal. calcd. for C16H18O2
(242.1307): C, 79.31; H, 7.49%; found: C, 79.35; H, 7.50%.
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193.46, 165.83, 161.55, 137.68, 137.20, 134.75, 131.76, 131.14,
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C16H14O5 (242.1307): C, 67.13; H, 4.93%; found: C, 67.10; H, 4.89%.
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(m, 4H), 7.23–6.60 (m, 3H), 3.68 (s, 6H); 13C NMR (CDCl3): d
192.09, 166.22, 162.40, 142.01, 136.98, 135.44, 132.54, 130.21,
130.06, 129.60, 107.20, 106.71, 59.04. HR-MS (EI): Anal. calcd. for
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C16H14O5 (242.1307): C, 67.13; H, 4.93%; found: C, 67.18; H, 4.90%.