State Hoffmann rule.
The Hofmann rule was discovered by August Wilhelm von Hofmann in 1851. The reaction is a type of degradation reaction that converts a higher molecular ____ __________ ______ ________ _________ ___ _______ ____ ________ __________ ______.
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i) Aromatic aldehydes are less reactive than aliphatic aldehydes towards nucleophilic addition reactions. ii) For aldol condensation aldehyde must contain α-hydrogen.
iii) Crossed claisen condensation in not of synthetic importance.
Write the mechanism of Curtius rearrangement. How would you convert 1-propanol to ethanol using this reaction?
Give the expected product and mechanism in the following reactions:
i) Rearrangement of carbocation in E1 reaction
ii) Isotope effect in E2 reactions
Write the mechanism of the following reactions:
a) Reimer-Tiemann reaction
b) Sandmeyer reaction
c) Bromination of 1-propene with N-Bromosuccinimide
d) Oxidation of 1,2- diols with lead tetra-acetate
Give the production of aspirin
Give the expected product (s) and mechanism of the following reactions.
