M. I. Rodr ´ı guez-Franco et al. / Tetrahedron Letters 42 (2001) 863–865
Table 3. Microanalytical data of prepared 4-iodopyrazoles
865
No.
Formula (MW)
Calcd
H (%)
Found
H (%)
C (%)
N (%)
C (%)
N (%)
2
2
2
2
2
2
2
a
b
c
d
e
f
C H IN O (238.03)
25.23
27.05
31.97
18.58
23.10
42.28
46.17
2.96
3.18
3.28
1.56
2.42
3.19
4.20
11.77
12.62
8.29
14.44
13.47
9.86
25.42
26.85
31.67
18.22
23.01
42.34
46.30
3.10
3.01
3.09
1.28
2.14
3.08
4.15
11.63
12.45
7.97
14.39
13.29
9.54
5
7
2
C H IN (222.03)
5
7
2
C H IN O (338.10)
9
11
2
4
C H IN (193.97)
3
3
2
C H IN (208.00)
4
5
2
C H IN (284.10)
10
9
2
g
C H IN (312.15)
8.97
8.61
12
13
2
Acknowledgements
Potts, K. T., Ed.; Pergamon Press: Oxford, 1984; Vol. 5,
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Madrid (08.5/0045.1/99) and the fellowship to one of us
1955, 593, 200–207.
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I.D.) from the Fundaci o´ n Ram o´ n Areces. We also
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