9-(5-Bromo-2-hydroxyphenyl)-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione (4q). IR spectrum,
ν, cm-1: 3095, 2960, 1619, 1563, 1463, 1367, 1290, 1215, 1180, 1086, 1033, 1005, 814, 650. 1H NMR spectrum,
δ, ppm (J, Hz): 1.78–1.91 (2H, m, CH2); 1.98-2.25 (4H, m, CH2); 2.38-2.48 (2H, m, CH2); 2.52-2.80 (4H, m,
CH2); 4.58 (1H, s, CH); 6.91 (1H, d, J = 8.8, H Ar); 7.13 (1H, s, H Ar); 7.26 (1H, d, J = 8.8, H Ar); 10.77 (1H,
13
s, OH). C NMR spectrum, δ, ppm: 19.5; 19.8; 27.8; 27.9; 29.7; 35.9; 36.9; 112.0; 117.0; 117.2; 119.3; 126.9;
130.4; 130.6; 150.0; 170.7; 173.3; 197.0; 201.3. Found, %: C 58.77; H 4.32. C19H17BrO4. Calculated, %: C
58.63; H 4.40.
9-(4-Isopropylphenyl)-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione (4r). IR spectrum, ν, cm-1: 3050,
2990, 1660, 1620, 1450, 1200, 1130, 828. 1H NMR spectrum, δ, ppm (J, Hz): 1.19 (6H, d, J = 6.8, 2CH3); 1.96-
2.07 (4H, m, 2CH2); 2.28-2.41 (4H, m, 2CH2); 2.53-2.69 (4H, m, 2CH2); 2.78-2.87 (1H, m, CH); 4.80 (1H, s,
CH); 7.06 (2H, d, J = 8.0, H Ar); 7.19 (2H, d, J = 8.0, H Ar). 13C NMR spectrum, δ, ppm: 20.2; 23.9; 27.1; 31.0;
33.5; 36.9; 117.0; 126.1; 146.5; 163.9; 196.6. Found, %: C 78.62; H 7.08. C22H24O3. Calculated, %: C 78.54; H
7.19.
9,9'-Benzene-1,4-diylbis(3,3,6,6-tetramethyl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione) (4s).
Yield 0.56 g. IR spectrum, ν, cm-1: 3040, 2957, 1666, 1620, 1462, 1425, 1365, 1200, 1162, 1003, 808. 1H NMR
spectrum, δ, ppm (J, Hz): 0.97 (12H, s, 4CH3); 1.07 (12H, s, 4CH3); 2.18 (8H, s, 4CH2); 2.39 (4H, d, 2J = 17.6)
2
and 2.48 (4H, d, J = 17.6, 4CH2); 4.71 (2H, s, 2CH); 7.08 (4H, s, H Ar). 13C NMR spectrum, δ, ppm: 25.0;
27.6; 28.9; 30.7; 32.2; 40.8; 50.6; 115.7; 127.8; 141.7; 162.4; 196.3. Found, %: C 77.26; H 7.28. C40H46O6.
Calculated, %: C 77.14; H 7.44.
9,9'-Benzene-1,4-diylbis(3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione) (4t). Yield 0.47 g. IR
spectrum, ν, cm-1: 3038, 2950, 1665, 1623, 1460, 1425, 1210, 1165, 1001, 802. 1H NMR spectrum, δ, ppm (J,
Hz): 1.98-2.12 (8H, m, 4CH2); 2.27-2.42 (8H, m, 4CH2); 2.49-2.57 (4H, m, 2CH2); 2.61-2.68 (4H, m, 2CH2);
4.74 (2H, s, 2CH); 7.09 (4H, s, H Ar). 13C NMR spectrum, δ, ppm: 20.1; 27.1; 30.8; 36.9; 116.9; 128.0; 141.9;
164.0; 196.7. Found, %: C 75.32; H 5.86. C32H30O6. Calculated, %: C 75.28; H 5.92.
9,9'-Benzene-1,3-diylbis(3,3,6,6-tetramethyl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione) (4u).
Yield 0.53 g. IR spectrum, ν, cm-1: 3095, 2957, 1659, 1629, 1462, 1203, 1158, 769. 1H NMR spectrum, δ, ppm (J,
Hz): 1.03 (12H, s, 4CH3); 1.08 (12H, s, 4CH3); 2.12 (4H, d, 2J = 16.9) and 2.18 (4H, d, 2J = 16.9, 4CH2); 2.42 (4H,
d, 2J = 17.7) and 2.53 (4H, d, 2J = 17.7, 4CH2); 4.72 (2H, s, 2CH); 7.07-7.09 (3H, m, H Ar); 7.15 (1H, s, H Ar). 13C
NMR spectrum, δ, ppm: 28.0; 29.5; 31.7; 32.5; 41.2; 51.2; 116.0; 126.8; 128.1; 144.0; 162.7; 196.6. Found, %: C
77.21; H 7.32. C40H46O6. Calculated, %: C 77.14; H 7.44.
This work was carried out with the financial support of a grant from Yasouj University of Iran.
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