Extending Carbon-Chain Length

Question 1

what can be used to increase the length of the carbon-carbon chain?

Answer 1

use of the C-C bond formation

Question 2

how can C-CtriplebondN be formed?

Answer 2

• haloalkanes with CN- and ethanol (nucleophilic substitution)
• carbonyl compounds with HCN (nucleophilic addition)

Question 3

what are the reduction of nitriles reactions?

Answer 3

• reduction with H2 and Ni to form amines
• acid hydrolysis to form carboxylic acids

Question 4

how can an aromatic ring have an increase in carbon-carbon chain length?

Answer 4

• Friedel Craft Alkylation (addition of haloalkanes)
• Friedel Craft Acylation ( addition of acyl chlorides)
• both in the presence of halogen carrier