3 An unknown compound has the molecular formula C9H11Br. Its proton NMR spectrum shows the following absorptions:singlet, d7.1, integral 44 mmsinglet, d2.3, integral 130 mmsinglet, d2.2, integral 67 mmPropose a structure for this compound

3 An unknown compound has the molecular formula C9H11Br. Its proton NMR spectrum shows the following absorptions:singlet, d7.1, integral 44 mmsinglet, d2.3, integral 130 mmsinglet, d2.2, integral 67 mmPropose a structure for this compound

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter13: Structure Determination: Nuclear Magnetic Resonance Spectroscopy

Section13.SE: Something Extra

Problem 64GP: Compound F, a hydrocarbon with M+=96 in its mass spectrum, undergoes reaction with HBr to yield...

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Concept explainers

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.

Question

3 An unknown compound has the molecular formula C9H11Br. Its proton NMR spectrum shows the following absorptions:
singlet, d7.1, integral 44 mm
singlet, d2.3, integral 130 mm
singlet, d2.2, integral 67 mm
Propose a structure for this compound

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