Question

a) A compound is known to be methyl anisole but, the regiochemistry of the two substituents (- CH3 and –OCH3) on the aromatic benzene ring is not known. The 13C-NMR spectrum shows six peaks. Which isomer is it? b) How would the 1H-NMR spectrum of the compound in a) look like? Sketch this spectrum. c) A compound of molecular formula C8H14O2 gives three NMR signals having the indicated integration values (going from left to right across the spectrum): signal [A] 14 units, signal [B] 12 units and signal [C] 44 units. How many protons give rise to each signal? What is the complete structure of this compound?

Name: a a compound is known to be methyl anisole but the regiochemistry of the two substituents ch3 and och3 on the aromatic benzene ring is not known the 13c nmr spectrum shows six peaks which isomer is it
Uploaded: 2023-12-28T15:50:24-08:00
Duration: 1 min 59 s
Channel: Lottie Adams
Description: a a compound is known to be methyl anisole but the regiochemistry of the two substituents ch3 and och3 on the aromatic benzene ring is not known the 13c nmr spectrum shows six peaks which isomer is it

          a) A compound is known to be methyl anisole but, the regiochemistry of the two substituents (- CH3 and –OCH3) on the aromatic benzene ring is not known. The 13C-NMR spectrum shows six  peaks. Which isomer is it? b) How would the 1H-NMR spectrum of the compound in a) look like? Sketch this spectrum. c) A compound of molecular formula C8H14O2 gives three NMR signals having the indicated  integration values (going from left to right across the spectrum): signal [A] 14 units, signal [B] 12  units and signal [C] 44 units. How many protons give rise to each signal? What is the complete  structure of this compound?

Added by George A.

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