31 May 2023 1 409 Report

Identify the following compound on the basis of the spectral data

UV: 257 nm

IR: 1745, 1225, 749, 697 cm-1

Proton NMR (δ): 7.22 (singlet); 5 (singlet); 1.96 (singlet)

C13NMR (δ): 172, 130, 40, 13

MS: 108, 91, 43.

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