JEE Advanced Chemistry question

Which of the following name is/are correct for the compound ClOC-CH_2-CH(COCl)-CH_2-COCl (drawn as CH_2-CH-CH_2-COCl with a branch under each of the first two carbons)

(A)Pentanedinoyl chlorideCorrect
(B)Alkanedinoyl chlorideCorrect
(C)3-chloroformyl pentanedinoyl chlorideCorrect
(D)None of the above

Answer: (A),(B),(C)

Solution

The compound is a 5-carbon diacid dichloride, ClOC-CH_2-CH_2-CH_2-COCl (pentanedioyl chloride, generically an "alkanedinoyl chloride"), carrying a third acid-chloride group as a substituent on the central (C3) carbon. Using the special suffix table ( "-carbonyl halide", cited as "chloroformyl" when used as

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Question ID VK-159229