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For recent reviews on organocatalytic reactions, see: a) P. I. Dalko, L. Moisan, Angew. Chem., Int. Ed. 2001, 40, 3726; Angew. Chem. 2001, 113, 3840; b) B. List, Synlett 2001, 1675; for a review of peptides and peptidomimetics as organocatalysts, see: c) E. R. Jarvo, S. J. Miller, Tetrahedron 2002, 58, 2481.
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For recent reviews on organocatalytic reactions, see: a) P. I. Dalko, L. Moisan, Angew. Chem., Int. Ed. 2001, 40, 3726; Angew. Chem. 2001, 113, 3840; b) B. List, Synlett 2001, 1675; for a review of peptides and peptidomimetics as organocatalysts, see: c) E. R. Jarvo, S. J. Miller, Tetrahedron 2002, 58, 2481.
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For recent reviews on organocatalytic reactions, see: a) P. I. Dalko, L. Moisan, Angew. Chem., Int. Ed. 2001, 40, 3726; Angew. Chem. 2001, 113, 3840; b) B. List, Synlett 2001, 1675; for a review of peptides and peptidomimetics as organocatalysts, see: c) E. R. Jarvo, S. J. Miller, Tetrahedron 2002, 58, 2481.
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Independently from us, the Cozzi group recently disclosed a homogeneous polymer-supported imidazolidinone catalyst for the enantioselective Diels-Alder reaction: M. Benaglia, G. Celentano, M. Cinquini, A. Puglisi, F. Cozzi, Adv. Synth. Catal. 2002, 344, 149.
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For recent reviews of enantioselective Diels-Alder reactions and their applications in total synthesis, see: a) E. J. Corey, Angew. Chem., Int. Ed. 2002, 41, 1650; Angew. Chem. 2002, 114, 1724; b) K. C. Nicolaou, S. A. Snyder, T. Montagnon, G. Vassilikogiannakis, Angew. Chem., Int. Ed. 2002, 41, 1668; Angew. Chem. 2002, 114, 1742; b) Y. Hayashi, in Cycloaddition Reactions in Organic Synthesis, (Eds.: S. Kobayashi, K. A. Jorgensen), Wiley-VCH, Weinheim, 2001, pp. 5-56.
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For recent reviews of enantioselective Diels-Alder reactions and their applications in total synthesis, see: a) E. J. Corey, Angew. Chem., Int. Ed. 2002, 41, 1650; Angew. Chem. 2002, 114, 1724; b) K. C. Nicolaou, S. A. Snyder, T. Montagnon, G. Vassilikogiannakis, Angew. Chem., Int. Ed. 2002, 41, 1668; Angew. Chem. 2002, 114, 1742; b) Y. Hayashi, in Cycloaddition Reactions in Organic Synthesis, (Eds.: S. Kobayashi, K. A. Jorgensen), Wiley-VCH, Weinheim, 2001, pp. 5-56.
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For recent reviews of enantioselective Diels-Alder reactions and their applications in total synthesis, see: a) E. J. Corey, Angew. Chem., Int. Ed. 2002, 41, 1650; Angew. Chem. 2002, 114, 1724; b) K. C. Nicolaou, S. A. Snyder, T. Montagnon, G. Vassilikogiannakis, Angew. Chem., Int. Ed. 2002, 41, 1668; Angew. Chem. 2002, 114, 1742; b) Y. Hayashi, in Cycloaddition Reactions in Organic Synthesis, (Eds.: S. Kobayashi, K. A. Jorgensen), Wiley-VCH, Weinheim, 2001, pp. 5-56.
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For recent reviews of enantioselective Diels-Alder reactions and their applications in total synthesis, see: a) E. J. Corey, Angew. Chem., Int. Ed. 2002, 41, 1650; Angew. Chem. 2002, 114, 1724; b) K. C. Nicolaou, S. A. Snyder, T. Montagnon, G. Vassilikogiannakis, Angew. Chem., Int. Ed. 2002, 41, 1668; Angew. Chem. 2002, 114, 1742; b) Y. Hayashi, in Cycloaddition Reactions in Organic Synthesis, (Eds.: S. Kobayashi, K. A. Jorgensen), Wiley-VCH, Weinheim, 2001, pp. 5-56.
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0038060240
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Eds.: S. Kobayashi, K. A. Jorgensen, Wiley-VCH, Weinheim
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For recent reviews of enantioselective Diels-Alder reactions and their applications in total synthesis, see: a) E. J. Corey, Angew. Chem., Int. Ed. 2002, 41, 1650; Angew. Chem. 2002, 114, 1724; b) K. C. Nicolaou, S. A. Snyder, T. Montagnon, G. Vassilikogiannakis, Angew. Chem., Int. Ed. 2002, 41, 1668; Angew. Chem. 2002, 114, 1742; b) Y. Hayashi, in Cycloaddition Reactions in Organic Synthesis, (Eds.: S. Kobayashi, K. A. Jorgensen), Wiley-VCH, Weinheim, 2001, pp. 5-56.
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[8b] tests to detect the presence of primary and secondary free amines, respectively, for the purposes of monitoring the reactions on solid support. See: a) E. Kaiser, R. L. Colescott, C. D. Bossinger, P. I. Cook, Anal. Biochem. 1970, 34, 595 (Kaiser test); b) T. Vojkovsky, Pept. Res. 1995, 8, 236 (chloranil test).
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chloranil test
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[8b] tests to detect the presence of primary and secondary free amines, respectively, for the purposes of monitoring the reactions on solid support. See: a) E. Kaiser, R. L. Colescott, C. D. Bossinger, P. I. Cook, Anal. Biochem. 1970, 34, 595 (Kaiser test); b) T. Vojkovsky, Pept. Res. 1995, 8, 236 (chloranil test).
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and references cited therein
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For examples of a silica-supported organocatalyst, see: K.-i. Shimizu, H. Suzuki, E. Hayashi, T. Kodama, Y. Tsuchiya, H. Hagiwara, Y. Kitayama, Chem. Commun. 2002, 1068 and references cited therein.
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0346313546
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note
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The n-propylamine loading was 0.53 mmol/g in the silica gel used.
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33
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33845375891
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L. A. Carpino, B. J. Cohen, K. E. Stephens, Jr, S. Y. Sadat-Aalaee, J.-H. Tien, D. C. Langridge, J. Org. Chem. 1986, 51, 3732; M. Beyermann, M. Bienert, H. Niedrich, J. Org. Chem. 1986, 57, 721.
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0346313543
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note
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MeOH was also used successfully as the solvent with the catalyst 5. In this case, however, the product aldehydes were converted into their corresponding dimethyl acetals.
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