Question

What is the correct IUPAC name of following compound?

• A. 3,7,8-tribromo-2-chloro-5-(2'-chloro-3'-iodobutyl)-5-(3"-chloropropyl)nonane
• B. 2,3-dibromo-5-(2'-bromo-3'-chlorobutyl)-7-chloro-5-(3"-chloropropyl)-8-iodononane
• C. 3-bromo-5-(2',3'-dibromobutyl)-2-chloro-5-(2"-chloro-3"-iodobutyl)-5-(3"'-chloropropyl)nonane
• D. 2,3,7-tribromo-8-chloro-5-(2'-chloro-3'-iodobutyl)-5-(3"-chloropropyl)nonane

Answer 1

The correct option is D 2,3,7-tribromo-8-chloro-5-(2'-chloro-3'-iodobutyl)-5-(3"-chloropropyl)nonane



Since we get nine carbons when we number the longest chain, and since the substituents get equal number and preference, the IUPAC name would take the same substituents, i.e., two bromo groups, and therefore the name would be 2,3,7-tribromo-8-chloro-5-(2'-chloro-3'-iodobutyl)-5-(3"-chloropropyl)nonane