Sentence examples for methyl protons could from inspiring English sources

The 1 H NMR spectral data of the acetyl derivatives illustrate that the chemical shift of the methyl protons could be used as an indication of the position of substitution of an acetyl or a methyl group linked to the aromatic rings [30, 41, 42].

The signal at 1.79 could be assigned to methyl protons at C-15 and further confirmed by 2  J and 3  J correlations with C-4 (δ 144.0), C-3 (δ 126.8) and C-5 (δ 55.0).

The protons could also short-circuit satellites or even induce electrical surges leading to widespread blackouts.

The methyl protons of 3HV were assigned at δ0.7 0.8 ppm.

Moreover, sharp singlet at δ 2.46 integrating for three protons was assigned to methyl protons.

Other protons resonated at δ 2.00 1.25 corresponding to methylene protons and methyl protons up field at δ 0.88.

GMA contains three epoxide protons; EMA and BA contain two methylene protons; and MMA and MA contain three methyl protons.

The coupling (5) between the methylene protons of 3HV and the methyl protons of 3HV was seen at δ1.6/0.9 ppm.

The two ester methyl protons were recorded as a triplet integrated for six protons at δH 1.41 ppm.

The proton signals arising from the methyl protons of the 6-deoxy sugars were observed at 1.279 2.0 ppm.

The singlet at δ 4.10 and 2.31 ppm was assigned to the bridged methylene protons and two methyl protons respectively.