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2-Thiophenecarboxylic acid, tetrahydro-3-oxo-, methyl ester CAS No.2689-69-2 / Cat No.EBD40942
3-氧基四氢噻吩-2-羧酸甲酯
3-氧代四氢噻吩-2-羧酸甲酯
3-氧基四氢噻吩-2-羧酸甲酯
3-氧基四氢噻吩-2-羧酸甲酯,98%
3-羰基-2-甲酸甲酯-四氢噻酚3-氧代四氢噻吩-2-羧酸甲酯
3-羰基-2-甲酸甲酯-四氢噻酚
3-氧代四氢噻吩-2-甲酸甲酯
Properties
1.281 g/mL at 1.281 °C(lit.)
38 °C(lit.)
232-254 °C/0.1 mmHg(lit.)
>109 °C
2-8°C
n20/D 1.511(lit.)
Safety Information
H302 Harmful if swallowed.
H319 Causes serious eye irritation.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
NMR Spectrum
Prediction: 1H NMR (40OMHz5CDCl3) keto tautomer: delta 4.03 (s, IH), 3.77 (s, 3H), 3.31 (ddd, J = 7.5, 8.0, 11.5 Hz, IH), 3.05 (ddd, J = 3.5, 8.0, 11.5 Hz, IH), 2.84 (ddd, / = 3.5, 7.5, 18.0 Hz, IH), 2.66 (ddd, / = 8.5, 8.5, 18.0 Hz, IH
1H NMR
13C NMR