the-given-spectrum-shows-the-estimated-13c-nmr-peaks-of-phenyl-butyrate-show-whi

Question

The given spectrum shows the estimated ¹³C NMR peaks of phenyl butyrate. Show which of these carbons will appear in DEPT-90 and DEPT-135 spectra.
13C NMR spectrum of phenyl butyrate showing labeled carbon peaks.

Accepted Answer

The DEPT-90 spectra will show only methine (CH) peaks for carbons f, g, and h.
The DEPT-135 spectra will show methyl (CH₃) peak for carbon 'a' and methine (CH) peaks for carbons f, g, and h pointed up, and the methylene (CH₂) peaks for carbons 'b' and 'c' pointed down.

Answer

The DEPT-90 spectra will show only methine (CH) peaks for carbons f, g, and h.
The DEPT-135 spectra will show methyl (CH₃) peak for carbon 'a', methine (CH) peaks for carbons f, g, and h, and the methylene (CH₂) peaks for carbons 'b' and 'c' all pointed up.

Answer

The DEPT-90 spectra will show peaks for all the carbons.
The DEPT-135 spectra will show methyl (CH₃) peak for carbon 'a' and methine (CH) peaks for carbons f, g, and h pointed up, and the methylene (CH₂) peaks for carbons 'b' and 'c' pointed down.

Answer

The DEPT-90 spectra will show only methylene (CH₂) peaks for carbons f, g, and h.
The DEPT-135 spectra will show methyl (CH₃) peak for carbon 'a' and methine (CH) peaks for carbons f, g, and h.

The given spectrum shows the estimated 13C NMR peaks of phenyl butyrate. Show which of these carbons will appear in DEPT-90 and DEPT-135 spectra.

The given spectrum shows the estimated ¹³C NMR peaks of phenyl butyrate. Show which of these carbons will appear in DEPT-90 and DEPT-135 spectra.