In polyfunctional compounds, carbon-containing terminal groups like and are known as "DON" groups. What strict numbering rule applies when they are the PFG in acyclic chains?

Question

In polyfunctional compounds, carbon-containing terminal groups like $-COOH$ and $-CN$ are known as "DON" groups. What strict numbering rule applies when they are the PFG in acyclic chains?

Prashant Kotian · Accepted Answer

Correct answer: B. If a chain-terminating carbon-containing group is the PFG, its carbon atom MUST be assigned position number 1 in the principal acyclic carbon chain (unless special 1993 rules apply).

💡 Solution & Explanation

Practice 22,000+ questions like this