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2 protocols using 2 acetylthiophene

1

Analytical Standards for Aroma Compounds

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Dichloromethane, ethyl acetate, absolute ethanol (99%), and anhydrous sodium sulfate were purchased from VWR International (Leuven, Belgium). Standards of ethyl benzoate, methyl anthranilate, phenylacetaldehyde, 2-methylbutanal, 3-methylbutanal, heptan-2-one, heptan-2-ol, 2-methylbutyl acetate, trans-2-nonenal, methional, isobutyl acetate, benzaldehyde, myrcene, linalool, ethyl heptanoate, ethyl octanoate, 2-phenylethyl acetate, ethyl acetate, ethyl butanoate, isoamyl propionate, acetophenone, and 2-acetylthiophene were purchased from Sigma-Aldrich (Bornem, Belgium). Standard of nonan-2-one was purchased from Janssen Chimica (Geel, Belgium). Standards of dimethyltrisulfide and 1-octen-3-ol were purchased from Acros Organics (Geel, Belgium). Standard of 3-methylbutan-1-ol was purchased from Merck Millipore (Burlington, NJ, USA). Standard of acetoin was purchased from Supelco (Bellefonte, PA, USA).
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2

Synthesis and Characterization of Acetyl Thiophene Derivatives

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2-Acetyl thiophene was procured from Sigma–Aldrich USA. All other chemicals and reagents purchased from SD-fine and Nice chemicals. Melting points of all the synthesized derivatives were determined by open-capillary tube method and values were uncorrected. IR spectra were recorded on Shimadzu FT/IR spectrometer on KBr pellets recorded in cm-1 values.1H NMR and 13C NMR spectra were recorded on a Bruker 400 mhz NMR spectrometer using CDCl3 as the solvent. Mass spectra were recorded on a JEOL GCmate mass spectrometer.
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