Q3 Lab#4 banana oil FINAL.docx

The banana oil product obtained was a clear liquidoil

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boiling point of 140°C for 25 minutes. The banana oil product obtained was a clear liquid/oil. Name Acetic Acid 3-methyl-1- butanol Sulfuric Acid Silica gel beads Isoamyl acetate Formula C 2 H 4 O 2 C 5 H 12 O H 2 SO 4 SiO 2 C 7 H 14 O 2 Molecular Weight 60.05 g/mol 88.15 g/mol 98.08 g/mol 60.08 g/mol 130.19 g/mol Quantity (g, mL) 4.0 mL 2.5 mL 10 drops 0.200 g 2.990 g Millimoles 69.94 mmol 22.97 mmol - 3.33 mmol 22.57 mmol Equivalents 3.05 1.00 - - 1.00 Density/mass % 1.05 g/ml 0.81 g/ml 1.84 g/ml - 0.876 g/ml MP/BP Mp: 118- 119 ° C Mp: -155 ° C Mp: 10 ° C Mp: 171.3  ° C Mp: -78 ° C
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Results Product: Banana Oil (Isoamyl Acetate) Crude Yield (mass, %) 1.1201 g, 37.5% Final Yield (mass, %) 1.1201 g, 37.5 % Description (state, color) Clear liquid/oil Melting Point Range  140 ° C NMR sample (solvent) CDCl 3 FT IR (diamond anvil, neat) 2958.50, 2872.23 cm-1(sp3 C-H stretch), 1739.80 cm-1 (C=O, ester) 1 H NMR 1H NMR (400 MHz, CDCl3) 4.02 (t, J=6.9 Hz, 2H,  a ), 1.97 (s, 3H,  b ), 1.65 (ts, J=20.2, 6.7 Hz, 1H,  c ), 1.47 (td, J= 6.9, 6.9 Hz, 2H,  d ), 0.85 (d, J=6.7 Hz, 6H,  e) Discussion   Isoamyl Acetate was successfully synthesized from acetic acid and isoamyl alcohol by the microwave assisted Fischer esterification process. Various spectroscopic techniques such as infrared spectroscopy and
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