Reaktion #10842
ord-121190dfed7e49c9b66c38f912eb6470
Reaktionsgleichung
4-[3E-(5-Benzo[b]thiophen-2-yl-2,4-dimethoxy-phenyl)-acryloyl]-benzoic acid
EDCI
→
title compound
Ausbeute 34.0%
4-[3E-(5-Benzo[b]thiophen-2-yl-2,4-dimethoxy-phenyl)-acryloyl]-benzoic acid methyl ester
Ausbeute 34.0%
Lösungsmittel
Reaktionsbedingungen
Detaillierte Bedingungen
See reaction.notes.procedure_details.
Vorschrift
The title compound was prepared by esterification of 4-[3E-(5-Benzo[b]thiophen-2-yl-2,4-dimethoxy-phenyl)-acryloyl]-benzoic acid (Ex-3) with methanol in the presence of EDCI and DMAP. Yellow solid, 34% yield, m.p. 149–151° C. 1H-NMR (300 MHz, CDCl3): 8.17 (d, 2H, J=6.7 Hz), 8.10 (d, 1H, J=15.8 Hz), 8.05 (d, 2H, J=6.7 Hz), 7.95 (s, 1H), 7.82 (m, 2H), 7.67 (s, 1H), 7.57 (d, 1H, J=15.8 Hz), 7.33 (m, 2H), 6.58 (s, 1H), 4.04 (s, 3H), 4.00 (s, 3H), 3.97 (s, 3H). MS m/z=458 ([M]+, 100%). HRMS (EI) Calcd. for C27H22O5S: 458.118 Found: 458.1196.