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0343301016
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note
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Part VI in the series "Dynamic kinetic resolution in the microbial reduction of α-monosubstituted β-oxoesters". Part V, see ref. 31.
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2
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12044253833
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0000084121
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37
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0343680349
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Cis/trans ratios (by GC analysis, see ref. 37) for the reduction of 1 and 2: 46/54 and 78/22 respectively
-
Cis/trans ratios (by GC analysis, see ref. 37) for the reduction of 1 and 2: 46/54 and 78/22 respectively.
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-
38
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0343244770
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note
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Flexibond™ OV-1701 capillary column (Pierce Chem. Co, 15 m × 0.25 mm), 135°C, ret. times: 3, 7.08 min; 5, 8.41 min; 4, 12.4 min; 6, 13.7 min.
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-
-
-
39
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0343244771
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note
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OV1701 capillary column, 135°C (10 min) then 135-170°C (2°C/min), ret. times: 3, 32.6 min; ent-3, 32.9 min; ent-5, 34.0 min; 5, 34.4 min. BP20 capillary column (SGE, 25 m × 0.25 mm), 160°C (20 min) then 160-190°C (4°C/min): ent-4, 51.2 min; 4, 51.8 min; ent-6, 54.4 min; 6, 55.2 min.
-
-
-
-
40
-
-
0343244769
-
-
note
-
H1H2=7 Hz.
-
-
-
-
41
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37049074383
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-
Enantiomers of cis-and trans-hydroxyesters 3 and 5 have been occasionally reported in the literature (Xie, Z.-F; Nakamura, I.; Suemune, H.; Sakai, K. J. Chem. Soc., Chem. Commun. 1988, 966, cited in Kitamura, M.; Ohkuma, T.; Tokunaga, M.; Noyori, R. Tetrahedron: Asymmetry 1990, 1, 1), but without any optical rotation measurement, and without clear and justified stereochemical assignments. However, the levorotatory optical rotations attributed to the 1R-isomers in the referred paper are in agreement with our results.
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(1988)
J. Chem. Soc., Chem. Commun.
, pp. 966
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-
Xie, Z.-F.1
Nakamura, I.2
Suemune, H.3
Sakai, K.4
-
42
-
-
0001773245
-
-
Enantiomers of cis-and trans-hydroxyesters 3 and 5 have been occasionally reported in the literature (Xie, Z.-F; Nakamura, I.; Suemune, H.; Sakai, K. J. Chem. Soc., Chem. Commun. 1988, 966, cited in Kitamura, M.; Ohkuma, T.; Tokunaga, M.; Noyori, R. Tetrahedron: Asymmetry 1990, 1, 1), but without any optical rotation measurement, and without clear and justified stereochemical assignments. However, the levorotatory optical rotations attributed to the 1R-isomers in the referred paper are in agreement with our results.
-
(1990)
Tetrahedron: Asymmetry
, vol.1
, pp. 1
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Kitamura, M.1
Ohkuma, T.2
Tokunaga, M.3
Noyori, R.4
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43
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33845557646
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Meyers, A. I.; Williams, D. R.; Erickson, G. W.; White, S.; Druelinger, M. J. Am. Chem. Soc. 1981, 103, 3081.
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Meyers, A.I.1
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Druelinger, M.5
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