Propose a structure consistent with each set of data.a. A compound X (molecular formula C6...

Propose a structure consistent with each set of data.

a. A compound X (molecular formula C6H12O2) gives a strong peak in its IR spectrum at 1740 cm−1. The 1H NMR spectrum of X shows only two singlets, including one at 3.5 ppm. The 13C NMR spectrum is given below. Propose a structure for X.

b. A compound Y (molecular formula C6H10) gives four lines in its 13C NMR spectrum (27, 30, 67, and 93 ppm), and the IR spectrum given here. Propose a structure for Y.

c.