A. Duarte et al. / Ultrasonics Sonochemistry 17 (2010) 281–283
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Table 2
Selected 1H and 13C NMR data of compounds 4a–g and 5a–g.
Comp.
d (ppm) for 1H and 13C NMR
4a
1H: 8.54–7.42 (m, 9H, aryl)
13C: 171.0 (C@O); 165.7; 145.9; 143.1; 140.1; 136.7; 134.1; 128.1; 125,6; 120.9; 118.7; 111.1
1H: 7.81–7.32 (m, 8H, aryl); 2.21 (s, 3H, Me)
4b
4c
4d
4e
4f
13C: 176.3 (C@O); 165.4; 152.6; 148.9; 145.5; 137.2; 133.9; 128.4; 124.9; 121.6; 120.6; 114.6; 21.4 (Me)
1H: 7.96–6.88 (m, 8H, aryl); 3.93 (s, 3H, OMe)
13C: 181.3 (C@O); 171.2; 155.2; 149.6; 140.6; 136.9; 133.6; 132.4; 127.2; 126.4; 124.2; 121.3; 115.9; 111.4; 55.2 (OMe)
1H: 7.75–6.82 (m, 8H, aryl); 3.81 (s, 3H, OMe)
13C: 179.0 (C@O); 166.5; 165.2; 147.4; 136.6; 131.5; 125.2; 123.2; 114.3; 113.6; 112.2; 110.2; 53.3 (OMe)
1H: 8.22–7.05 (m, 8H, aryl)
13C: 178.7 (C@O); 165.0; 161.2; 158.2; 146.8; 134.9; 134.8; 130.8; 129.5; 126.0; 125.4; 121.9; 116.2; 110.0
1H: 8.53–7.09 (m, 8H, aryl)
13C: 171.4 (C@O); 163.7; 163.2; 146.7; 138.8; 130.3; 127.9; 126.8; 126.1; 123.3; 121.2; 121.0; 117.4; 117.2
1H: 8.10–7.41 (m, 8H, aryl)
4g
13C: 181.0 (C@O); 171.2; 164.2; 152.9; 144.7; 131.2; 129.8; 128.6; 125.7; 123.8; 120.1; 110.3
a
5a
5bb
5c
13C: 185.9 (C@O); 174.4; 151.4; 145.8; 139.9; 145.3; 131.6; 127.4; 126.1; 123.8; 119.9; 111.7; 21.4 (Me)
1H: 7.78–6.69 (m, 8H, aryl); 3.85 (s, 3H, OMe)
13C: 180.1 (C@O); 169.5; 158.2; 151.8; 136.5; 135.9; 131.1; 129.9; 127.6; 127.0; 126.0; 124.0; 117.3; 112.5; 55.1 (OMe)
13C: 185.0 (C@O); 164.7; 151.5; 136.0; 132.7; 128.1; 126.2; 125.3; 122.8; 121.1; 114.2; 113.6; 55.5 (OMe)
1H: 8.26–7.10 (m, 8H, aryl)
5db
5e
13C: 191.0 (C@O); 168.7; 163.8; 161.2; 140.3; 135.4; 135.3; 132.6; 129.9; 127.1; 124.0; 121.2; 117.6; 112.3
1H: 7.95–7.31 (m, 8H, aryl)
5f
13C: 185.5 (C@O); 166.4; 161.2; 148.5; 140.7; 132.5; 131.2; 129.9; 127.7; 124.6; 123.7; 120.5; 119.9; 112.0
13C: 177.3 (C@O); 166.5; 158.4; 145.8; 139.3; 133.6; 128.6; 126.9; 125.1; 120.8; 119.7; 112.2
5gb
a
NMR literature data [21].
b
1H NMR literature data [19].
purified by column chromatography on silica gel using a mixture of
chloroform:methanol (9:1) as the eluent.
with the manuscript. CNPq, CAPES, FAPESP and FAPERGS are also
acknowledged.
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The authors thank UFPel for the financial support of the re-
search and thank Dr. J.L. Wardell and Dr. S.M.S.V. Wardell for help