(Solved): please help me with 1-8  Deduce the identity of the following compound from the spectral data g ...

Deduce the identity of the following compound from the spectral data given. \( \mathrm{C}_{9} \mathrm{H}_{12}:{ }^{13} \mathrm{C} \) NMR, \( \delta 21.3 \) (quartet), \( 127.2 \) (doublet), \( 138.0 \) (singlet) (ppm) Provide the structure that is consistent with the data below. \( \mathrm{C}_{t} \mathrm{H}_{\text {sol }} \mathrm{R}\left(\mathrm{cm}^{-1}\right): 2950,2230^{1} \mathrm{H} \) NMR (d): \( 2.0 \) (1H, septet), \( 1.8(3 \mathrm{H}, \mathrm{s}), 0.9(6 \mathrm{H}, \mathrm{d})^{\mathrm{B3}} \mathrm{C} \) NMR (d): 78 (s), 72 (s), 45 (d), 18 (q), 15 (q) Provide the structure that is concistent with the data helnw. Provide the structure that is consistent with the data below. Provide the structure that is consistent with the data below. Provide the structure that is consistent with the data below. Provide the structure that is consistent with the data below. Provide the structure that is consistent with the data below.