The symmetry-related aromatic hydrogens give one signal, and the two symmetry-related aryl methyl groups give another. The ester methoxy and acetal methyl each give one further signal. In the dioxolane ring, the two methylene groups are symmetry-related but their two proton classes are chemically distinct in this environment, giving two signals. Total 1+1+1+1+2=6.
More Experimental Techniques in Organic Chemistry: Optical rotation (polarimetry). Application of various chromatographic techniques such as thin-layer, column, HPLC and GC. Applications of UV-visible, IR, NMR spectroscopy and Mass spectrometry in the structural determination of organic molecules. questions
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GATE 2024 CY Q40– Consider the following 1H-NMR (400 MHz, DMSO-d 6) data of a compound: in ppm: 3.85 (s,…
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GATE 2025 CY Q42– Compound K has a strong IR band at 1680 cm−1. Its 1H NMR data: (ppm) 7.30 (d, J = 7.2 Hz,…
