tert-butyl chloride (2-chloro-2-methylpropane) from tert- butyl alcohol (tert-butanol) using an acid catalyzed dehydration reaction Physical Constants Compound Mol. Wt (g/mol) Density (g/mL) b.p. (°C) m.p. (°C) 2-Methyl-2-propanol 74.12 0.786 82 25 2-Chloro-2- methylpropane 92.57 0.851 51 -25 Hydrochloric acid 37% soln in H2O 1.18 -85 -26 12.0ml of t-butyl alcohol, with 25.0ml 12.0M HCl, 12ml of water, 12ml of saturated aqueous sodium bicarbonate, 12ml of saturated aqueous sodium chloride, magnesium sulfate 1 (CH3)COH + 1 H3O^+ Cl^- -> 1 (CH3)3CCl + 2 H2O Typically yield 6.34g Why is the percent yield be lower than expected? 53.9% .. Is it due to evaporation? Is it not the major product? If this reaction was with 2-butanol/HCl instead of tert butanol, how would I obtain the products/mechanism, and determine major products? Thank you!!
tert-butyl chloride (2-chloro-2-methylpropane) from tert- butyl alcohol (tert-butanol) using an acid catalyzed dehydration reaction
Physical Constants
Compound |
Mol. Wt (g/mol) |
Density (g/mL) |
b.p. (°C) |
m.p. (°C) |
2-Methyl-2-propanol |
74.12 |
0.786 |
82 |
25 |
2-Chloro-2- methylpropane |
92.57 |
0.851 |
51 |
-25 |
Hydrochloric acid |
37% soln in H2O |
1.18 |
-85 |
-26 |
12.0ml of t-butyl alcohol, with 25.0ml 12.0M HCl, 12ml of water, 12ml of saturated aqueous sodium bicarbonate, 12ml of saturated aqueous sodium chloride, magnesium sulfate
1 (CH3)COH + 1 H3O^+ Cl^- -> 1 (CH3)3CCl + 2 H2O
Typically yield 6.34g
Why is the percent yield be lower than expected? 53.9% .. Is it due to evaporation? Is it not the major product?
If this reaction was with 2-butanol/HCl instead of tert butanol, how would I obtain the products/mechanism, and determine major products?
Thank you!!
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