The second page focuses on aromatic compound transformations, particularly benzene derivatives and their substitution reactions. The scheme shows various functional group interconversions and substitution patterns.

Definition: Aromatic compounds are organic compounds containing a planar ring of six carbon atoms with delocalized electrons.

Example: The bromination of benzene using Br₂/AlBr₃ as a catalyst demonstrates electrophilic aromatic substitution.

Highlight: The importance of catalysts (AlCl₃, FeBr₃) in aromatic substitution reactions is emphasized through multiple reaction pathways.

The final page details specific reactions involving phenols and their derivatives, showcasing various substitution patterns and transformations.

Definition: Phenols are aromatic compounds containing a hydroxyl group $-OH$ directly attached to the aromatic ring.

Example: The bromination of phenol using Br₂ shows the high reactivity of phenols in electrophilic aromatic substitution.

Highlight: The formation of sodium phenoxide (O⁻Na⁺) through reaction with NaOH demonstrates the acidic nature of phenols.

Vocabulary: Nitration - The process of introducing a nitro group $-NO₂$ into an organic compound using nitric acid.

This page presents a comprehensive reaction scheme showing the interconversion of aliphatic compounds. The diagram illustrates various synthetic routes between different functional groups including alkanes, alkenes, alcohols, and nitrogen-containing compounds.

Definition: Aliphatic compounds are organic compounds containing carbon and hydrogen arranged in straight chains, branched chains, or non-aromatic rings.

Example: The conversion of an alcohol to an aldehyde using K₂Cr₂O₇/H₂SO₄ as an oxidizing agent.

Highlight: Multiple pathways exist for synthesizing amines, including reduction of nitriles and amides using H₂/Ni catalyst.

Vocabulary: Reflux - A technique where a solution is heated and the vapor condenses and returns to the reaction vessel.