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General reviews on asymmetric organocatalysis, see: a) Enantioselective Organocatalysis (Ed.: Rl. Dalko), Wiley-VCH, Weinheim, 2007;
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Reviews on organocatalytic domino reactions: a
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Reviews on organocatalytic domino reactions: a) D. Enders, C. Grondai, M. R. M. Hüttl, Angew. Chem. 2007, 119, 1590-1601;
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a) D. Enders, M. R. M. Hüttl, C. Grondai, G. Raabe, Nature 2006, 441, 861-863. See also;
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For selected, recent examples, see: a
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For selected, recent examples, see: a) Y. Huang, A. M. Walji, C. H. Larsen, D. W. C. MacMillan, J. Am. Chem. Soc. 2005, 127, 15051-15053;
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For the synthesis of compounds with quaternary stereocenters (three examples) by means of an organocatalytic sequential strategy, see reference [7c
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For the synthesis of compounds with quaternary stereocenters (three examples) by means of an organocatalytic sequential strategy, see reference [7c].
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For a recent highlight on the impact of diarylprolinol ether 5 in asymmetric aminocatalysis, see: a
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For a recent highlight on the impact of diarylprolinol ether 5 in asymmetric aminocatalysis, see: a) C. Palomo. A. Mielgo, Angew. Chem. 2006, 118, 8042-8046;
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Angew. Chem. Int. Ed. 2006, 45, 7876-7880: see also reference [6]; for selected examples, see:
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Angew. Chem. Int. Ed. 2006, 45, 7876-7880: see also reference [6]; for selected examples, see:
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40
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for our contributions toward expansion of the scope of diarylprolinol ethers, see: d
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for our contributions toward expansion of the scope of diarylprolinol ethers, see: d) A. Carlone, G. Bartoli, M. Bosco, L. Sambri, P. Melchiorre, Angew. Chem. 2007, 119, 4588-4590;
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It is impressive how, despite being the main component of one of the most used superglue solution (Loctite* Super Attak, Henkel), ethyl 2-cyanoacrylate 2a is compatible with organocatalytic reaction conditions. This underscores, once again, the reliability and the synthetic potential of asymmetric aminocatalysis.
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It is impressive how, despite being the main component of one of the most used superglue solution (Loctite* Super Attak, Henkel), ethyl 2-cyanoacrylate 2a is compatible with organocatalytic reaction conditions. This underscores, once again, the reliability and the synthetic potential of asymmetric aminocatalysis.
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45
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54349097436
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2H) and basic additives (e.g., DABCO) resulted in considerably lower reaction rate and worse diastereoseleclivity.
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2H) and basic additives (e.g., DABCO) resulted in considerably lower reaction rate and worse diastereoseleclivity.
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46
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54349114617
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Efforts to use aliphatic cyanoacrylate derivatives in the triple organocascade resulted in very poor conversion
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Efforts to use aliphatic cyanoacrylate derivatives in the triple organocascade resulted in very poor conversion.
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47
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Further studies toward the asymmetric preparation of enantiopure cyclohexanes having six stereocenters are underway
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Further studies toward the asymmetric preparation of enantiopure cyclohexanes having six stereocenters are underway.
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48
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0037431283
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For recent examples of this method to assign the absolute configurations of organic molecules, see: a
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For recent examples of this method to assign the absolute configurations of organic molecules, see: a) C. Diedrich. S. Grimme, J. Phys. Chem. A 2003, 107, 2524-2539;
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