CAIE A-Level Chemistry 19.2.1 Preparation of Nitriles
Practise preparing nitriles by heating a halogenoalkane with potassium cyanide in ethanol.
- Syllabus
- 2028–2030
- Course
- Chemistry 9701
- Level
- AS
Exam points
- select KCN in ethanol with heat for nucleophilic substitution of the halogen by CN
- draw the nitrile with one additional carbon because the carbon atom of CN− joins the chain
- distinguish the –C≡N connectivity of a nitrile from an isocyanide arrangement
19.2.1—Preparation of nitriles question 1
Compounds P and Q are structural isomers.
Fig. 4.1
Fig. 4.3 shows a synthesis starting from T, a different isomer of R and S.
Fig. 4.3
Identify the reagent and conditions for reaction 1.
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