In the williamson ether synthesis of n-butyl methyl ether from
1-bromobutane, sodium, and ethanol, how could the purity as well as
the percent yield of the product be improved?
6. During the synthesis of a Grignard reagent in diethyl ether
solvent, bubbles are observed on the surface of the magnesium.
Select the correct identity of the bubbles.
a. The bubbles are gaseous O2.
b. The bubbles are gaseous H2.
c. The bubbles are gaseous diethyl ether.
d. The bubbles are gaseous magnesium byproducts.
7. Prior to the synthesis of a Grignard reagent, the magnesium
that is used in the reaction must be activated. Select the action
that best describes...
Calculate the theoretical yield of this Williamson Ether
Synthesis:
Materials:
25 mL Erlenmeyer flask with stir bar
0.8 mL (0.83g) p-cresol
0.7 mL 1-bromopropane
50 mg (0.05g) t-butyl ammonium bromide
-Add all reagents at room temperature, reflux ~1hr at a 3
setting on a hotplate, cool to room temperature
Workup:
- add 5 mL diethyl ether
-etc.
-etc.
-etc....
The compound known as diethyl ether, commonly referred to as
ether, contains carbon, hydrogen, and oxygen. A 1.626 g sample of
ether was combusted in an oxygen rich environment to produce 3.862
g of CO2(g) and 1.976 g of H2O(g). Insert subscripts below to
appropriately display the empirical formula of ether.