question 14 (10 points)\nwhat is the structure of 1 - chloro - 3 - ethyl - 2 - heptanone?
question 14 (10 points)\nwhat is the structure of 1 - chloro - 3 - ethyl - 2 - heptanone?
Answer
Explanation:
Step1: Analyze the name 1 - chloro - 3 - ethyl - 2 - heptanone
Heptanone means a 7 - carbon chain with a ketone group at the 2 - position. The prefix "3 - ethyl" indicates an ethyl group ($-CH_2CH_3$) is attached to the 3 - carbon of the heptanone chain, and "1 - chloro" means a chlorine atom is attached to the 1 - carbon of the chain.
Step2: Draw the structure
The main carbon - chain has 7 carbons. The carbonyl group (C=O) is at the 2 - position. An ethyl group is attached to the 3 - carbon and a chlorine atom is attached to the 1 - carbon. The correct structure is the one where the carbon - chain has 7 carbons, with $C = O$ at the second carbon, an ethyl group at the third carbon and a chlorine at the first carbon. Among the given structures, the one with the formula $CH_3CH_2CH_2CH_2CH(CH_2CH_3)COCH_2Cl$ is correct.
Answer:
The structure with the formula $CH_3CH_2CH_2CH_2CH(CH_2CH_3)COCH_2Cl$ (the third - one from the top in the image where the carbon - chain has 7 carbons, the carbonyl is at the second carbon, an ethyl group is at the third carbon and a chlorine is at the first carbon)