An unknown compound, A (C7H10), show four absorptions in its 13C-NMR spectrum, at 22 (CH2), 24, 124 (CH), and 126 (CH) on reaction with

An unknown compound, A (C7H10), show four absorptions in its 13C-NMR spectrum, at 22 (CH2), 24, 124 (CH), and 126 (CH) δ on reaction with excess H2 and a Pt catalyst, A produces B (C7H14) B shows a single peak at 28.4 δ in its 13C-NMR spectrum. Ozonolysis of A gives C2H2O2 and C5H8O2, suggest structures for A and B.