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3
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0346908681
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Yamamoto H., and Oshima K. (Eds), Wiley-VCH, Weinheim
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In: Yamamoto H., and Oshima K. (Eds). Main Group Metals in Organic Synthesis (2004), Wiley-VCH, Weinheim
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(2004)
Main Group Metals in Organic Synthesis
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6
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7444225174
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Also see the references cited therein
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Dias L.C., and Steil L.J. Tetrahedron Lett. 45 (2004) 8835 Also see the references cited therein
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(2004)
Tetrahedron Lett.
, vol.45
, pp. 8835
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Dias, L.C.1
Steil, L.J.2
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7
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33748725936
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Also see the references cited therein
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Almendros P., Gruttadauria M., Helliwell M., and Thomas E.J. J. Chem. Soc., Perkin Trans. 1 (1997) 2549 Also see the references cited therein
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(1997)
J. Chem. Soc., Perkin Trans. 1
, pp. 2549
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Almendros, P.1
Gruttadauria, M.2
Helliwell, M.3
Thomas, E.J.4
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15
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1942455295
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Nishigaichi Y., Ishihara M., Fushitani S., Uenaga K., and Takuwa A. Chem. Lett. (2004) 108
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(2004)
Chem. Lett.
, pp. 108
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Nishigaichi, Y.1
Ishihara, M.2
Fushitani, S.3
Uenaga, K.4
Takuwa, A.5
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16
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0000544839
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4-promoted reaction with an amido-allyltin reagent:
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4-promoted reaction with an amido-allyltin reagent:. Tanaka K., Yoda H., Isobe Y., and Kaji A. J. Org. Chem. 51 (1986) 1856
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(1986)
J. Org. Chem.
, vol.51
, pp. 1856
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Tanaka, K.1
Yoda, H.2
Isobe, Y.3
Kaji, A.4
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18
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39649099614
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note
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CCDC 671467 and 671468 contain the supplementary crystallographic data for this Letter (syn-8b and anti-4, respectively). These data can be obtained free of charge via www.ccdc.cam.ac.uk/data_request/cif, or by emailing data_request@ccdc.cam.ac.uk, or by contacting The Cambridge Crystallographic Data Centre, 12, Union Road, Cambridge CB2 1EZ, UK; fax: +44 1223 336033.
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19
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39649085884
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note
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4-mediated reactions of 2a and of 6 may be attributed to the cyclic structure of the imido moiety, of which coordination would cause steric strain. Thus, a different transition state should be adopted.
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20
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39649120611
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note
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1H NMR spectra: syn-4a, 1.27 (3H, d, J = 6.8 Hz), 2.30 (1H, dd, J = 13.9, 9.5 Hz), 2.54 (1H, dd, J = 14.0, 3.3 Hz), 3.46 (1H, br, OH), 3.68 (3H, s), 4.22-4.33 (1H, m), 4.85-4.89 (1H, m), 4.94 (1H, br, NH), 5.02 (1H, s), 5.14 (1H, s), 7.22-7.39 (5H, m). anti-4a, 1.25 (3H, d, J = 6.8 Hz), 2.44 (2H, d, J = 6.8 Hz), 3.55 (1H, br, OH), 3.64 (3H, s), 4.21-4.30 (1H, m), 4.92 (1H, br, NH), 4.95 (1H, s), 5.11 (1H, s), 5.28-5.32 (1H, m), 7.22-7.39 (5H, m).
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21
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39649089423
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4, condensed, and chromatographed to isolate the product.
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4, condensed, and chromatographed to isolate the product.
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22
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39649108257
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3 (0.2 mmol) were added an aldehyde (0.2 mmol) in ether (2 mL) and 2 (0.3 mmol) in ether (2 mL) at room temperature under nitrogen with stirring. After 12 h, the reaction mixture was worked up as above.
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3 (0.2 mmol) were added an aldehyde (0.2 mmol) in ether (2 mL) and 2 (0.3 mmol) in ether (2 mL) at room temperature under nitrogen with stirring. After 12 h, the reaction mixture was worked up as above.
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23
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39649085883
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note
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4-mediated reaction of 2 b resulted in poor diastereoselectivity; nearly equal amounts of syn- and anti-adducts were obtained.
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24
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39649086750
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note
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Considerable decomposition of 2c proceeded with most of the aldehyde intact.
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