1. From Di-halogen Compounds: Suitable 1,3 or 1,4 di-halogen alkanes react with sodium or zinc to form cycloalkanes. 2. From Aromatic Compounds: Benzene can be converted into cyclohexane through catalytic hydrogenation at high temperature and pressure. 3. From Calcium or Barium salts of Dicarboxylic acids: Heating the calcium or barium …
DeepakRajput 
Polynuclear Hydrocarbons: Synthesis, reactions
Polynuclear hydrocarbons, also known as polycyclic aromatic hydrocarbons (PAHs), are a class of organic compounds composed of multiple fused aromatic rings. These compounds are characterized by their unique structures, which consist of two or more benzene rings joined together in various ways. PAHs are of significant interest in organic chemistry …
