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In: Chemistry

How would you use a DEPT spectrum and a {1H}13C spectrum to deduce how many quaternary...

How would you use a DEPT spectrum and a {1H}13C spectrum to deduce how many quaternary carbon atoms you have?

Solutions

Expert Solution

DEPT nothing but Distortionless Enhancement by Polarization Transfer

there isthree types of spectra we can record

DEPT-135

CH3 carbons              signal will appear above called +ve

CH2 carbon              signal will appear below called -Ve

CH carbon              signal will appear above called +ve

Quarternary carbons   you will not observe

DEPT-90

CH3 carbons             you will not observe

CH2 carbon              you will not observe

CH carbon              signal will appear above called +ve

Quarternary carbons   you will not observe


that means it will be use ful for finding CH

DEPT-45

CH3 carbons             signal will appear above called +ve

CH2 carbon            signal will appear above called +ve

CH carbon              signal will appear above called +ve

Quarternary carbons   you will not observe

IN DEPT we can see the quertanery carbon


that means it will be use ful for finding CH

queen_honey_blossom answered 3 months ago
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