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0037012926
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1642524945
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9144233089
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7
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15044343595
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note
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3 at -40°C for 3 h also gave hydrated product 17 in 42% yield. (Chemical Equation Presented)
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8
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15044353291
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note
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1HNMR of the product mixture.
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9
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15044353018
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note
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1H NMR of the fractions. The diastereomer ratios of 2d and 2e were not precisely determined.
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11
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15044345368
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note
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4), and evaporated in vacuo. The residue was purified by column chromatography over silica gel eluting with hexane-ether (1:1) to give 12a (417 mg, 92%).
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12
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15044353575
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note
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Reaction of 5 and 9b at room temperature or at -40°C for 3 h gave a complex mixture containing 10b and possibly compounds arising from rearranged alkenes.
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16
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0000799540
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For examples, (a) Johnson, C. R.; Elliot, R. C.; Meanwell, N. A. Tetrahedron Lett. 1982, 23, 5005. (b) Jackson, R. F. W.; Raphael, R. A. Tetrahedron Lett. 1983, 24, 2117. (c) Sakurai, K.; Takahashi, K.; Yoshida, T. Agric. Biol. Chem. 1983, 47, 1249. (d) Kaiser, R. Helv. Chim. Acta 1984, 67, 1198.
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Tetrahedron Lett.
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Johnson, C.R.1
Elliot, R.C.2
Meanwell, N.A.3
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17
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0020615241
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For examples, (a) Johnson, C. R.; Elliot, R. C.; Meanwell, N. A. Tetrahedron Lett. 1982, 23, 5005. (b) Jackson, R. F. W.; Raphael, R. A. Tetrahedron Lett. 1983, 24, 2117. (c) Sakurai, K.; Takahashi, K.; Yoshida, T. Agric. Biol. Chem. 1983, 47, 1249. (d) Kaiser, R. Helv. Chim. Acta 1984, 67, 1198.
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(1983)
Tetrahedron Lett.
, vol.24
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Jackson, R.F.W.1
Raphael, R.A.2
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18
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1542410143
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For examples, (a) Johnson, C. R.; Elliot, R. C.; Meanwell, N. A. Tetrahedron Lett. 1982, 23, 5005. (b) Jackson, R. F. W.; Raphael, R. A. Tetrahedron Lett. 1983, 24, 2117. (c) Sakurai, K.; Takahashi, K.; Yoshida, T. Agric. Biol. Chem. 1983, 47, 1249. (d) Kaiser, R. Helv. Chim. Acta 1984, 67, 1198.
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(1983)
Agric. Biol. Chem.
, vol.47
, pp. 1249
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Sakurai, K.1
Takahashi, K.2
Yoshida, T.3
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19
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6844256515
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For examples, (a) Johnson, C. R.; Elliot, R. C.; Meanwell, N. A. Tetrahedron Lett. 1982, 23, 5005. (b) Jackson, R. F. W.; Raphael, R. A. Tetrahedron Lett. 1983, 24, 2117. (c) Sakurai, K.; Takahashi, K.; Yoshida, T. Agric. Biol. Chem. 1983, 47, 1249. (d) Kaiser, R. Helv. Chim. Acta 1984, 67, 1198.
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Helv. Chim. Acta
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Kaiser, R.1
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