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Total synthesis: H. Kim, H. Lee, J. Kim, S. Kim, D. Kim, J. Am. Chem. Soc. 2006, 128, 15851-15855.
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For a recent application in the synthesis of precursors for eleuterobin, see
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For a recent application in the synthesis of precursors for eleuterobin, see: S. Dhulut, A. Bourin, M.-I. Lannou, E. Fleury, N. Lensen, E. Chelain, A. Pancrazi, J. Ardisson, J. Fahy, Eur. J. Org. Chem. 2007, 5235-5243.
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53549123528
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For a recent application of discodermolide in total synthesis, see
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Reetz, M.T.1
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47
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53549104367
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A discussion of the transition states of the homoaldol reaction can be found in ref. [10b]. The configurations of the products 16 and 17 were established by nOesy studies after conversion to the THF derivatives 18 and 19.
-
A discussion of the transition states of the homoaldol reaction can be found in ref. [10b]. The configurations of the products 16 and 17 were established by nOesy studies after conversion to the THF derivatives 18 and 19.
-
-
-
-
48
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34447542845
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For nOesy correlatons of 18 and 19, see the Supporting Information. Homoaldol products that are syn-configured like 17 lead to an all-cis-substitution pattern of the THF, see: J. Becker, R. Fröhlich, K. Salorinne, D. Hoppe, Eur. J. Org. Chem. 2007, 3337-3348.
-
For nOesy correlatons of 18 and 19, see the Supporting Information. Homoaldol products that are syn-configured like 17 lead to an all-cis-substitution pattern of the THF, see: J. Becker, R. Fröhlich, K. Salorinne, D. Hoppe, Eur. J. Org. Chem. 2007, 3337-3348.
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50
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0037017718
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b) M. T. Crimmins, K. A. Emmitte, A. L. Choy, Tetrahedron 2002, 58, 1817-1834;
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Crimmins, M.T.1
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52
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0030786787
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The ring-closing proceeded with loss of a methylene group
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The ring-closing proceeded with loss of a methylene group: D. Joe, L. E. Overman, Tetrahedron Lett. 1997, 38, 8635-8638.
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54
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M. Scholl, S. Ding, C. W. Lee, R. H. Grubbs, Org. Lett. 1999, 1, 953-956.
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Scholl, M.1
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58
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53549128050
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The absolute configuration of the starting material (R)-9 was proven by X-ray crystallography with anomalous dispersion of a corresponding THF; see ref. [10b].
-
The absolute configuration of the starting material (R)-9 was proven by X-ray crystallography with anomalous dispersion of a corresponding THF; see ref. [10b].
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-
-
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59
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53549115591
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X-ray crystal structure analysis for, -1: C20H 32O3, Mr, 320.46, colorless crystal 0.20 x 0.08 x 0.08 mm3, a, 9.0189(1, b, 10.6042(1, c, 9.7714(1) Å, β, 97.051(1)°, V, 927.45(2) Å3, ρcalc, 1.148 gcm-3, μ, 0.589 mm-1, empirical absorption correction (0.891 ≤ T ≤ 0.954, Z, 2, monoclinic, space group P21 (No. 4, λ, 1.54178 Å, T, 223 K, ω and φ scans, 5758 reflections collected (±h, ±k, ±l, sinθ)/λ, 0.60 Å-1, 2252 independent (Rint, 0.079) and 2049 observed reflections [I ≥ 2σ(I, 213 refined parameters, R, 0.058, wR 2, 0.161, Flack parameter 0.1(4, max. residual electron density 0.23, 0.20) e
-
-3, hydrogen atoms calculated and refined as riding atoms.
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-
-
-
60
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0031059866
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-
The data set was collected with a Nonius KappaCCD diffractometer. Programs used: data collection COLLECT (Nonius B. V., 1998), data reduction Denzo-SMN (Z. Otwinowski, W. Minor, Methods Enzymol. 1997, 276, 307-326),
-
The data set was collected with a Nonius KappaCCD diffractometer. Programs used: data collection COLLECT (Nonius B. V., 1998), data reduction Denzo-SMN (Z. Otwinowski, W. Minor, Methods Enzymol. 1997, 276, 307-326),
-
-
-
-
61
-
-
0038414570
-
-
absorption correction Denzo (Z. Otwinowski, D. Borek, W. Majewski, W. Minor, Acta Crystallogr. Sect. A 2003, 59, 228-234),
-
absorption correction Denzo (Z. Otwinowski, D. Borek, W. Majewski, W. Minor, Acta Crystallogr. Sect. A 2003, 59, 228-234),
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-
-
-
62
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84943920736
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structure solution SHELXS-97 (G. M. Sheldrick, Acta Crystallogr. Sect. A 1990, 46, 467-473), structure refinement SHELXL-97 (G. M. Sheldrick, Universität Göttingen, 1997), graphics SCHAKAL (E. Keller, Universität Freiburg, 1997). CCDC-663250 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data_request/cif.
-
structure solution SHELXS-97 (G. M. Sheldrick, Acta Crystallogr. Sect. A 1990, 46, 467-473), structure refinement SHELXL-97 (G. M. Sheldrick, Universität Göttingen, 1997), graphics SCHAKAL (E. Keller, Universität Freiburg, 1997). CCDC-663250 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data_request/cif.
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