One of the products of hydrolysis of a wax gave the following ¹H NMR spectrum,ppm (integral): 3.62(2); 1.58(2),1.45(2); 1.27(50); 0.88(3).The molecular weight is 410.8 amu. What is the compound?

Question

Quizplus · Accepted Answer

Based on the NMR spectrum, the compound has multiple peaks in the range of 0-2 ppm, indicating the presence of many CH3 and CH2 groups. This matches with the structure of wax, which is a mixture of long-chain hydrocarbons.

The molecular weight (410.8 amu) suggests that the compound is a polymer of repeating units. Looking at the answer choices, only options B, C, and E have polymer structures.

Option E has a carbonyl group in addition to the hydroxyl group, which is not consistent with a wax hydrolysis product. Therefore, option E can be eliminated.

Option B has a repeating unit of S1U1B125, which is not a commonly known unit for waxes. Therefore, option B can be eliminated.

Option C has a repeating unit of S1U1B125 but also contains an additional CH3 group at the end of the chain (CHS1U1B12S1U1B0CHS1U1B12S1U1B0OH). This matches with the possibility of a wax structure, where the chain of repeating units can end with a CH3 group. Therefore, option C is the best choice.

One of the Products of Hydrolysis of a Wax Gave