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We have reported Pd-catalyzed asymmetric ene reactions. (a) Aikawa, K.; Kainuma, S.; Hatano, M.; Mikami, K. Tetrahedron Lett. 2004, 45, 183.
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Cu-catalyzed asymmetric ketoester-ene reactions, (a) Evans, D. A.; Tregay, S. W.; Burgey, C. S.; Paras, N. A.; Vojkovsky, T. J. Am. Chem. Soc. 2000, 122, 7936.
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Sc-catalyzed asymmetric carbonyl-ene reactions. (b) Evans, D. A.; Wu, J. J. Am. Chem. Soc. 2005, 127, 8006.
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Catalytic asymmetric reactions by using ketoester. (a) Dimauro, E. F.; Kozlowski, M. C. J. Am. Chem. Soc. 2002, 124, 12668.
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Catalytic asymmetric reactions by using ketoester. (a) Dimauro, E. F.; Kozlowski, M. C. J. Am. Chem. Soc. 2002, 124, 12668.
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35848941388
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6 did not catalyze the reaction. Therefore, there is no participation of silver salt in this reaction.
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6 did not catalyze the reaction. Therefore, there is no participation of silver salt in this reaction.
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31
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0000155207
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Saito, T.; Yokozawa, T.; Ishizaki, T.; Moroi, T.; Sayo, N.; Miura, T.; Kumobayashi, H. Adv. Synth. Catal. 2001, 343, 264.
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32
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35848946493
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The use of 2-(triisopropyl)siloxy-1-butene instead of 1 gave the ene product in 91% yield, E/Z = 7/3, 85% ee (enantiopurity was determined after desilylation of E- and Z-isomer mixture).
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The use of 2-(triisopropyl)siloxy-1-butene instead of 1 gave the ene product in 91% yield, E/Z = 7/3, 85% ee (enantiopurity was determined after desilylation of E- and Z-isomer mixture).
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33
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0000263137
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Sodeoka and Shibasaki reported Pd-catalyzed asymmetric aldol reaction via Pd enolate. The aldol product would be obtained via Pd enolate. (a) Sodeoka, M.; Ohrai, K.; Shibasaki, M. J. Org. Chem. 1995, 60, 2648.
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Sodeoka and Shibasaki reported Pd-catalyzed asymmetric aldol reaction via Pd enolate. The aldol product would be obtained via Pd enolate. (a) Sodeoka, M.; Ohrai, K.; Shibasaki, M. J. Org. Chem. 1995, 60, 2648.
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The absolute configuration was determined in comparison of the value of optical rotation. Evans, D. A.; Kozlowski, M. C.; Burgey, C. S.; MacMillan, D. W. C. J. Am. Chem. Soc. 1997, 119, 7893.
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The absolute configuration was determined in comparison of the value of optical rotation. Evans, D. A.; Kozlowski, M. C.; Burgey, C. S.; MacMillan, D. W. C. J. Am. Chem. Soc. 1997, 119, 7893.
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35848948064
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35848944780
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Chem. Abstr. 1982, 96, 16001.
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Homo two-directional glyoxylate-ene reaction: Mikami, K.; Matsukawa, S.; Nagashima, M.; Funabashi, H.; Morishima, H. Tetrahedron Lett. 1997, 38, 579.
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46
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35848946048
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These three products were incompletely separated by silica-gel chromatography and transformed into 6 with TBAF
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These three products were incompletely separated by silica-gel chromatography and transformed into 6 with TBAF.
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