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. 2022 Apr 11;87(9):5866–5881. doi: 10.1021/acs.joc.2c00154

Table 3. 1H, 13C{1H}, and 15N NMR Data of (1H-Indazol-1-yl)Methanol Derivatives in DMSO-d6 Solutiona.

  2ab 2b 3b 2c 2d 1e–2H 2e 3e
nuclei H 4-NO2 4-NO2 5-NO2 6-NO2 7-NO2 7-NO2 7-NO2
1H (ppm)
H3 8.09 8.54 8.91 8.42 8.34 8.43 8.30 8.85
H4 7.72 NO2 NO2 8.83 8.03 8.33e 8.19 8.37
H5 7.17 8.20 8.21 NO2 7.99 7.37 7.38 7.28
H6 7.41 7.68 7.40 8.27 NO2 8.36e 8.28 8.48
H7 7.77 8.27 8.30 7.92 8.78 NO2 NO2 NO2
CH2 5.73 5.79 5.79 5.78 5.86   5.83 5.80
OH 6.68 6.95 7.50 6.94 6.93   6.59 7.48
13C (ppm)
C3 134.2 132.1 124.8 136.4 134.0 136.2 135.5 120.4
C3a 126.0 116.6 113.9 123.3 127.4 127.6 130.6g 125.7
C4 121.6 140.6 143.0 118.9 122.2 130.4 128.8 126.7
C5 121.7 118.7 120.7 141.4 115.3 120.7 121.3 120.4
C6 127.0 126.0 123.8 121.0 145.9 124.0 124.8 125.7
C7 111.0 118.3 126.6 112.0 107.2 132.6f 138.2g 137.4
C7a 139.8 139.7 149.2 140.8 137.6 132.4f 130.8g 140.1
CH2 71.6 71.5 75.8 71.4 71.4   75.3 76.2
15N (ppm)
N1 –180.8b –173.7 90.2 –174.3 –173.0   170.1 86.5
N2 –60.5b –50.6 134.2 –50.3 –45.2   47.7 134.5
NO2   15.6 15.9 17.1 16.6   13.9 17.4
SSCC (Hz)
3JCH2OH –7.3c –7.5c –8.0c –7.5c –7.4c   –7.7c –7.9c
3JH4H5 8.5 NO2 NO2 NO2 8.8 7.9 7.9 8.2
3JH5H6 7.5 7.3 7.7 NO2 NO2 7.9 7.9 7.5
3JH6H7 8.0 7.6 8.4 9.2 NO2 7.9 NO2 NO2
4JH4H6 1.0 NO2 NO2 2.2 NO2 0.9 1.0 1.0
4JH5H7 0.9 0.9 d NO2 1.5 NO2 NO2 NO2
5JH3H7 0.8d 0.9 0.0 1.0 0.0 NO2 NO2 NO2
a

Italic type: predicted values.

b

From ref (17): 3JN1H3 = 7.9, 2JN2H3 = 13.0, 3JN2CH2 = 2.7 Hz;17 calculated, this work, 3JN1H3 = 5.5, 2JN2H3 = 9.2, 3JN2CH2 = 2.0 Hz.

c

The minus sign was assigned from the calculations.

d

Not measured.

e

Assignment based on coupling constants (Figure 5).

f

From ref (47).

g

Not observed.