Related questions

Question

if HNMR peak at 0.9 ppm triplet R-CH3 (methyl), 1.1 ppm doublet R3-CH (methine), 1.5 ppm pentate R3-CH, 1.7 ppm pentate R3-CH, 2.3 ppm quartet ar-ch3 (benzylic). what would be the predicted structure?