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Worksheets3.3.14 Organic synthesis (A-level only)
Total questions: 10
Worksheet time: 5mins
2-Methylbutylamine can be synthesised from an alkene.
What is the identity of the alkene?
But-2-ene
Methylpropene
2-Methylbut-1-ene
2-Methylbut-2-ene
Which one of the following pairs of reagents reacts to form an organic product that shows only 2 peaks in its proton n.m.r. spectrum?
butan-2-ol and acidified potassium dichromate(VI)
ethanoyl chloride and methanol
propanoic acid and ethanol in the presence of concentrated sulphuric acid
ethene and hydrogen in the presence of nickel
Which one of the following pairs reacts to form an organic product with only 2 singlets in its proton n.m.r. spectrum?
ethene and bromine
propan-2-ol and acidified potassium dichromate(VI)
ethanol and concentrated sulphuric acid
epoxyethane and water in the presence of dilute sulphuric acid
This question concerns the preparation of the plastic poly(methyl 2-methylpropenoate) (Perspex), starting from propanone.
Which one of the following sets of reagents is not suitable for the step indicated?
Step 1 HCN (NaCN then dilute HCl)
Step 2 hot ethanolic KOH
Step 3 warm aqueous H2SO4
Step 4 CH3OH with an acid catalyst
This question refers to the reaction sequence in the image.
Which one of the following is not involved in the reaction sequence?
esterification
hydrolysis
nucleophilic addition
reduction
Which one of the following types of reaction is not involved in the above sequence?
halogenation
acylation
reduction
oxidation
Which one of the following types of reaction mechanism is not involved in the above sequence?
free-radical substitution
nucleophilic substitution
elimination
nucleophilic addition-elimination(
Refer to the following reaction sequence:
Which one of the following types of reaction is not involved in the above sequence?
acylation
oxidation
reduction
dehydration
Refer to the following reaction sequence:
Which one of the following types of reaction mechanism is not involved in the above sequence?
electrophilic addition
electrophilic substitution
addition−elimination
elimination
Refer to the following reaction sequence:
Which one of the following would be the most appropriate to carry out Step 2?
H2 / Ni
Sn / HCl
NaBH4
Fe / HCl
