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Tanaka, S.; Yasuda, M.; Baba, A. Synlett 2007, 1720 and references therein. See also refs 1 and 2.
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(e) Tanaka, S.; Yasuda, M.; Baba, A. Synlett 2007, 1720 and references therein. See also refs 1 and 2.
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58149182105
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For selected recent works in different reactions to construct a-carbonyl quaternary stereocenters using acyclic tetrasubstituted silyl ketene acetals or tributyltin enolates, see
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For selected recent works in different reactions to construct a-carbonyl quaternary stereocenters using acyclic tetrasubstituted silyl ketene acetals or tributyltin enolates, see:
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Ho, C.-H.1
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Wilson, J. E.; Fu, G. C. Angew. Chem., Int. Ed. 2004, 43, 6358.
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Denmark, S. E.; Wilson, T. W.; Burk, M. T.; Heemstra, J. R., Jr. J. Am. Chem. Soc. 2007, 129, 14864.
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58149180711
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Reviews on direct aldol reactions
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Reviews on direct aldol reactions:
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20
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1642386775
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(b) Palomo, C; Oiarbide, M.; Garcia, J. M. Chem. Soc. Rev. 2004, 33, 65.
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58149193945
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For selected examples, see
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For selected examples, see:
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22
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2342470940
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and references therein
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(a) Ito, Y.; Sawamura, M.; Shirakawa, E.; Hayashizaki, K.; Hayashi, T. Tetrahedron 1988, 44, 5253 and references therein.
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Ito, Y.1
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Kuwano, R.1
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Ito, Y.3
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24
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0034620786
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For related works of α-carbonyl tert-alcohol construction
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(c) Sunazuka, T.; Hirose, T.; Shirahata, T.; Harigaya, Y.; Hayashi, M.; Komiyama, K.; Omura, S.; Smith, A. B., III. J. Am. Chem. Soc. 2000, 122, 2122. For related works of α-carbonyl tert-alcohol construction:
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J. Am. Chem. Soc
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Sunazuka, T.1
Hirose, T.2
Shirahata, T.3
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Hayashi, M.5
Komiyama, K.6
Omura, S.7
Smith III, A.B.8
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25
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Kumagai, N.1
Matsunaga, S.2
Kinoshita, T.3
Harada, S.4
Okada, S.5
Sakamoto, S.6
Yamaguchi, K.7
Shibasaki, M.8
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(b) Ogawa, S.; Shibata, N.; Inagaki, J.; Nakamura, S.; Toru, T.; Shiro, M. Angew. Chem. Int. Ed. 2007, 46, 8666.
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Ogawa, S.1
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Shiro, M.6
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3042625080
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Mase, N.; Tanaka, F.; Barbas, C. F., III. Angew. Chem., Int. Ed. 2004, 43, 2420 and references therein.
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Mase, N.1
Tanaka, F.2
Barbas III, C.F.3
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(a) Alper, P. B.; Meyers, C.; Lerchner, A.; Siegel, D. R.; Carreira, E. M. Angew. Chem., Int. Ed. 1999, 38, 3186.
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32
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33847786262
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and references therein
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(a) Taillier, C; Lautens, M. Org. Lett. 2007, 9, 591 and references therein.
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(b) Bertozzi, F.; Gustafsson, M.; Olsson, R. Org. Lett. 2002, 4, 3147.
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Bertozzi, F.1
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(c) Huang, W.-W.; Chin, J.; Karpinski, L.; Gustafson, G.; Baldino, C. M.; Yu, L.-B. Tetrahedron Lett. 2006, 47, 4911.
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Tetrahedron Lett
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Huang, W.-W.1
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Karpinski, L.3
Gustafson, G.4
Baldino, C.M.5
Yu, L.-B.6
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(a) Han, Z.; Uehira, S.; Tsuritani, T.; Shinokubo, H.; Oshima, K. Tetrahedron 2001, 57, 987.
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Tetrahedron
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Han, Z.1
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Shinokubo, H.4
Oshima, K.5
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36
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3042790177
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(b) Timmons, C; Chen, D.-J.; Cannon, J. F.; Headley, A. D.; Li, G. G. Org. Lett. 2004, 6, 2075.
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Timmons, C.1
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Li, G.G.5
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37
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12944323175
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a-Substituted donors for constructing α-carbonyl quaternary stereocenters have not been utilized in these studies
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(c) Shi, M.; Yang, Y.-H.; Xu, B. Tetrahedron 2005, 61, 1893. a-Substituted donors for constructing α-carbonyl quaternary stereocenters have not been utilized in these studies.
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Tetrahedron
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Shi, M.1
Yang, Y.-H.2
Xu, B.3
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40
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58149201695
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3-catalyzed couplings of cyclopropanedicarboxylates and donor/acceptor cyclopropanes with nitrones, see: (d) Lebold, T. P.; Carson, C. A.; Kerr, M. A. Synlett 2006, 364. See also:
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3-catalyzed couplings of cyclopropanedicarboxylates and donor/acceptor cyclopropanes with nitrones, see: (d) Lebold, T. P.; Carson, C. A.; Kerr, M. A. Synlett 2006, 364. See also:
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41
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41149174128
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and references therein
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(e) Jackson, S. K.; Karadeolian, A.; Driega, A. B.; Kerr, M. A. J. Am. Chem. Soc. 2008, 130, 4196 and references therein.
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J. Am. Chem. Soc
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Jackson, S.K.1
Karadeolian, A.2
Driega, A.B.3
Kerr, M.A.4
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42
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58149198332
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Utility of the imide as an achiral template
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Utility of the imide as an achiral template:
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45
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58149180710
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γ-Lactam 6b formed via ring-expansion without aldehyde incorporation.
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γ-Lactam 6b formed via ring-expansion without aldehyde incorporation.
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46
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58149188619
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The relative stereochemistries of 5bd and 5aa were unambiguously determined by single crystal X-ray analysis. The relative stereochemistries of other products are drawn by analogy.
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The relative stereochemistries of 5bd and 5aa were unambiguously determined by single crystal X-ray analysis. The relative stereochemistries of other products are drawn by analogy.
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47
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58149196920
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For selected exceptional metal-catalyzed direct aldol reactions wherein enolizable linear alkyl aldehydes afforded good results comparable to other aldehydes, see
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For selected exceptional metal-catalyzed direct aldol reactions wherein enolizable linear alkyl aldehydes afforded good results comparable to other aldehydes, see:
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48
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19744363827
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and references therein
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(a) Magdziak, D.; Lalic, G.; Lee, H. M.; Fortner, K. C; Aloise, A. D.; Shair, M. D. J. Am. Chem. Soc. 2005, 127, 7284 and references therein.
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J. Am. Chem. Soc
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Magdziak, D.1
Lalic, G.2
Lee, H.M.3
Fortner, K.C.4
Aloise, A.D.5
Shair, M.D.6
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49
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0038298158
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and references therein
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(b) Evans, D. A.; Downey, C. W.; Hubbs, J. L. J. Am. Chem. Soc. 2003, 125, 8706 and references therein.
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J. Am. Chem. Soc
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Evans, D.A.1
Downey, C.W.2
Hubbs, J.L.3
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50
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(c) Trost, B. M.; Ito, H.; Silcoff, E. R. J. Am. Chem. Soc. 2001, 123, 3367.
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J. Am. Chem. Soc
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Trost, B.M.1
Ito, H.2
Silcoff, E.R.3
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51
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0034801857
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For other examples, see reviews in ref 2 and references therein
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(d) Yoshikawa, N.; Kumagai, N.; Matsunaga, S.; Moll, G.; Ohshima, T.; Suzuki, T.; Shibasaki, M. J. Am. Chem. Soc. 2001, 123, 2466. For other examples, see reviews in ref 2 and references therein.
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J. Am. Chem. Soc
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Yoshikawa, N.1
Kumagai, N.2
Matsunaga, S.3
Moll, G.4
Ohshima, T.5
Suzuki, T.6
Shibasaki, M.7
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