A student was attempting the reaction outlined below. The isolated product was analyzed by MS and 1H NMR spectroscopy. Although the MS spectrum matches well, the 1H NMR spectrum does not match the intended product. Determine the structure of the product obtained and explain why it is preferred. Assign all 1H NMR signals to specific chemical environments or specific hydrogens in your structure, show your reasoning on the spectrum. OH но PCC, CH,Cl2 CH;MgBr G 'H•NMR Spectrum of Actual·Product 3H H 3H E F IH IH C IH IH IH IH 2 6 PPM 4.

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NMR Spectroscopy

NMR stands for Nuclear Magnetic Resonance in which the study of different molecules is done based on the interaction of radiofrequency electromagnetic radiations with the nuclei of molecules placed in a strong magnetic field. A precise study of spectra of visible light and all bands of electromagnetic radiation is called spectroscopy.