List of used abbreviations - RosDok - Universität Rostock

Et
3-Hydroxy-5-(4-ethylphenylsulfanyl)-phthalic
acid dimethyl ester (14e): Starting with 3g (462
mg, 1.5 mmol) and 13 (319 mg, 2.25 mmol), in
neat condition 14e was isolated as a highly
viscous oil (358 mg, 69%); 1 S CO2Me OH
CO2Me H NMR (300 MHz, CDCl3): δ = 1.19 (t, J = 7.6 Hz, 3H,
CH3), 2.61 (q, J = 7.6 Hz, 2H, CH2), 3.76 (s, 3 H, OCH3), 3.79 (s, 3 H, OCH3), 6.17-
6.21 (dd, J=8.2, 1.8 Hz, 2H, ArH), 7.06 (d, J=8.2 Hz, 2H, ArH), 7.23 (d, J=8.2 Hz, 2H,
ArH), 10.69 (s, 1H, OH); 13 C NMR (75.4 MHz, CDCl3): δ = 15.2 (CH3), 28.6 (CH2),
52.6 (OCH3), 52.7 (OCH3), 106.4 (C), 115.7, 116.8 (ArCH), 126.3 (C), 129.5, 135.1
(2ArCH), 135.7, 146.2, 149.1, 161.5, 169.0, 169.1 (C); IR (KBr, cm −1 ): v� = 3094 (w),
3067 (w), 2999 (w), 2951 (w), 2847 (w), 1732 (s), 1669 (s), 1588 (s), 1555 (m), 1488
(s), 1435 (m), 14397 (m), 1332 (s), 1268 (s), 1218 (s), 1198 8s), 1169 8s), 1155 (s),
1121(s), 1089 8m), 1014 (s), 934 (m), 832 (s), 802 (s), 702 (m), 638 (m), 566 (m); MS
(EI, 70 eV): m/z (%) = 347 (21), 346 (M + , 100), 315 (24), 313 (35), 299 (12), 298 (11),
297 (53), 285 (33), 281 (14), 228 (10), 227 (10), 226 (10); HRMS (EI): calcd for
C18H18O5S [M + ]: 346.08695, found: 346.086443.
Et
3-hydroxy-6-(4-ethylphenylsulfanyl)-4-methyl-
phthalic acid dimethyl ester (14f): Starting with
3h (483 mg, 1.5 mmol) and 13 (319 mg, 2.25
mmol), 14f was isolated as a highly viscous oil
(345mg, 64%); 1 S CO2Me Me
OH
CO2Me H NMR (300 MHz, CDCl3): δ =1.09 (t, J = 7.6 Hz, 3H, CH3), 2.03 (s,
3H, CH3), 2.51 (q, J = 7.6 Hz, 2H, CH2), 3.70 (s, 3 H, OCH3), 3.73 (s, 3 H, OCH3),
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