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For the use of related oxazoline amines in asymmetric catalysis, see: (a) Wipf, P.; Wang, X. Org. Lett. 2002, 4, 1197-1200. (b) Wipf, P.; Pierce, J. G.; Wang, X. Tetrahedron: Asymmetry 2003, 14, 3605-3611. (c) Trifonova, A.; Källström, K. E.; Andersson, P. G. Tetrahedron 2004, 60, 3393-3403.
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23
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0036399087
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This particular class of pseudo-dipeptides has successfully been employed as ligands in ruthenium-catalyzed transfer-hydrogenation of ketones; see: (a) Pastor, I. M.; Västilä, P.; Adolfsson, H. Chem. Commun. 2002, 2046-2047. (b) Pastor, I. M.; Västilä, P.; Adolfsson, H. Chem. Eur. J. 2003, 9, 4031-4045. (c) Bøgevig, A.; Pastor, I. M.; Adolfsson, H. Chem. Eur. J. 2004, 10, 294-302.
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24
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This particular class of pseudo-dipeptides has successfully been employed as ligands in ruthenium-catalyzed transfer-hydrogenation of ketones; see: (a) Pastor, I. M.; Västilä, P.; Adolfsson, H. Chem. Commun. 2002, 2046-2047. (b) Pastor, I. M.; Västilä, P.; Adolfsson, H. Chem. Eur. J. 2003, 9, 4031-4045. (c) Bøgevig, A.; Pastor, I. M.; Adolfsson, H. Chem. Eur. J. 2004, 10, 294-302.
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25
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0345827492
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This particular class of pseudo-dipeptides has successfully been employed as ligands in ruthenium-catalyzed transfer-hydrogenation of ketones; see: (a) Pastor, I. M.; Västilä, P.; Adolfsson, H. Chem. Commun. 2002, 2046-2047. (b) Pastor, I. M.; Västilä, P.; Adolfsson, H. Chem. Eur. J. 2003, 9, 4031-4045. (c) Bøgevig, A.; Pastor, I. M.; Adolfsson, H. Chem. Eur. J. 2004, 10, 294-302.
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0035826326
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A similar JV-sulfonated (2-aminomethyl)oxazoline was previously prepared and used as an intermediate in the synthesis of the immunosuppressant FR901483; see: Ousmer, M.; Braun, N. A.; Ciufolini, M. A. Org. Lett. 2001, 5, 765-767.
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17444363478
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note
-
The attempted coupling resulted predominantly in the acylation of the N-sulfonyl protected amino acid by the coupling reagent (isobutylchloro formate).
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31
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0038260520
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For reviews on transfer-hydrogenations, see: (a) Blaser, H.-U.; Malan, C.; Pugin, B.; Spindler, F.; Steiner, H.; Studer, M. Adv. Synth. Catal. 2003, 345, 103-151. (b) Everaere, K.; Mortreux, A.; Carpentier, J.-F. Adv. Synth. Catal. 2003, 345, 67-77. (c) Bäckvall, J.-E. J. Organomet. Chem. 2002, 652, 105-111. (d) Palmer, M. J.; Wills, M. Tetrahedron: Asymmetry 1999, 10, 2045-2061. (e) Noyori, R.; Hashiguchi, S. Acc. Chem. Res. 1997, 30, 97-102. (f) de Graauw, C. F.; Peters, J. A.; van Bekkum, H.; Huskens, J. Synthesis 1994, 1007-1017. (g) Bäckvall, J.-E.; Chowdhury, R. L.; Karlsson, U.; Wang, G. Z. in Perspectives in Coordination Chemistry; Williams, A. F., Floriani, C., Merbach, A. E., Eds.; Helvetica Chimica Acta: Basel, 1992; pp 463-486. (h) Zassinovich, G.; Mestroni, G.; Gladiali, S. Chem. Rev. 1992, 92, 1051-1069. (i) Matteoli, U.; Frediani, P.; Bianchi, M.; Botteghi, C.; Gladiali, S. J. Mol. Catal. 1981, 12, 265-319.
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For reviews on transfer-hydrogenations, see: (a) Blaser, H.-U.; Malan, C.; Pugin, B.; Spindler, F.; Steiner, H.; Studer, M. Adv. Synth. Catal. 2003, 345, 103-151. (b) Everaere, K.; Mortreux, A.; Carpentier, J.-F. Adv. Synth. Catal. 2003, 345, 67-77. (c) Bäckvall, J.-E. J. Organomet. Chem. 2002, 652, 105-111. (d) Palmer, M. J.; Wills, M. Tetrahedron: Asymmetry 1999, 10, 2045-2061. (e) Noyori, R.; Hashiguchi, S. Acc. Chem. Res. 1997, 30, 97-102. (f) de Graauw, C. F.; Peters, J. A.; van Bekkum, H.; Huskens, J. Synthesis 1994, 1007-1017. (g) Bäckvall, J.-E.; Chowdhury, R. L.; Karlsson, U.; Wang, G. Z. in Perspectives in Coordination Chemistry; Williams, A. F., Floriani, C., Merbach, A. E., Eds.; Helvetica Chimica Acta: Basel, 1992; pp 463-486. (h) Zassinovich, G.; Mestroni, G.; Gladiali, S. Chem. Rev. 1992, 92, 1051-1069. (i) Matteoli, U.; Frediani, P.; Bianchi, M.; Botteghi, C.; Gladiali, S. J. Mol. Catal. 1981, 12, 265-319.
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For reviews on transfer-hydrogenations, see: (a) Blaser, H.-U.; Malan, C.; Pugin, B.; Spindler, F.; Steiner, H.; Studer, M. Adv. Synth. Catal. 2003, 345, 103-151. (b) Everaere, K.; Mortreux, A.; Carpentier, J.-F. Adv. Synth. Catal. 2003, 345, 67-77. (c) Bäckvall, J.-E. J. Organomet. Chem. 2002, 652, 105-111. (d) Palmer, M. J.; Wills, M. Tetrahedron: Asymmetry 1999, 10, 2045-2061. (e) Noyori, R.; Hashiguchi, S. Acc. Chem. Res. 1997, 30, 97-102. (f) de Graauw, C. F.; Peters, J. A.; van Bekkum, H.; Huskens, J. Synthesis 1994, 1007-1017. (g) Bäckvall, J.-E.; Chowdhury, R. L.; Karlsson, U.; Wang, G. Z. in Perspectives in Coordination Chemistry; Williams, A. F., Floriani, C., Merbach, A. E., Eds.; Helvetica Chimica Acta: Basel, 1992; pp 463-486. (h) Zassinovich, G.; Mestroni, G.; Gladiali, S. Chem. Rev. 1992, 92, 1051-1069. (i) Matteoli, U.; Frediani, P.; Bianchi, M.; Botteghi, C.; Gladiali, S. J. Mol. Catal. 1981, 12, 265-319.
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For reviews on transfer-hydrogenations, see: (a) Blaser, H.-U.; Malan, C.; Pugin, B.; Spindler, F.; Steiner, H.; Studer, M. Adv. Synth. Catal. 2003, 345, 103-151. (b) Everaere, K.; Mortreux, A.; Carpentier, J.-F. Adv. Synth. Catal. 2003, 345, 67-77. (c) Bäckvall, J.-E. J. Organomet. Chem. 2002, 652, 105-111. (d) Palmer, M. J.; Wills, M. Tetrahedron: Asymmetry 1999, 10, 2045-2061. (e) Noyori, R.; Hashiguchi, S. Acc. Chem. Res. 1997, 30, 97-102. (f) de Graauw, C. F.; Peters, J. A.; van Bekkum, H.; Huskens, J. Synthesis 1994, 1007-1017. (g) Bäckvall, J.-E.; Chowdhury, R. L.; Karlsson, U.; Wang, G. Z. in Perspectives in Coordination Chemistry; Williams, A. F., Floriani, C., Merbach, A. E., Eds.; Helvetica Chimica Acta: Basel, 1992; pp 463-486. (h) Zassinovich, G.; Mestroni, G.; Gladiali, S. Chem. Rev. 1992, 92, 1051-1069. (i) Matteoli, U.; Frediani, P.; Bianchi, M.; Botteghi, C.; Gladiali, S. J. Mol. Catal. 1981, 12, 265-319.
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For reviews on transfer-hydrogenations, see: (a) Blaser, H.-U.; Malan, C.; Pugin, B.; Spindler, F.; Steiner, H.; Studer, M. Adv. Synth. Catal. 2003, 345, 103-151. (b) Everaere, K.; Mortreux, A.; Carpentier, J.-F. Adv. Synth. Catal. 2003, 345, 67-77. (c) Bäckvall, J.-E. J. Organomet. Chem. 2002, 652, 105-111. (d) Palmer, M. J.; Wills, M. Tetrahedron: Asymmetry 1999, 10, 2045-2061. (e) Noyori, R.; Hashiguchi, S. Acc. Chem. Res. 1997, 30, 97-102. (f) de Graauw, C. F.; Peters, J. A.; van Bekkum, H.; Huskens, J. Synthesis 1994, 1007-1017. (g) Bäckvall, J.-E.; Chowdhury, R. L.; Karlsson, U.; Wang, G. Z. in Perspectives in Coordination Chemistry; Williams, A. F., Floriani, C., Merbach, A. E., Eds.; Helvetica Chimica Acta: Basel, 1992; pp 463-486. (h) Zassinovich, G.; Mestroni, G.; Gladiali, S. Chem. Rev. 1992, 92, 1051-1069. (i) Matteoli, U.; Frediani, P.; Bianchi, M.; Botteghi, C.; Gladiali, S. J. Mol. Catal. 1981, 12, 265-319.
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For reviews on transfer-hydrogenations, see: (a) Blaser, H.-U.; Malan, C.; Pugin, B.; Spindler, F.; Steiner, H.; Studer, M. Adv. Synth. Catal. 2003, 345, 103-151. (b) Everaere, K.; Mortreux, A.; Carpentier, J.-F. Adv. Synth. Catal. 2003, 345, 67-77. (c) Bäckvall, J.-E. J. Organomet. Chem. 2002, 652, 105-111. (d) Palmer, M. J.; Wills, M. Tetrahedron: Asymmetry 1999, 10, 2045-2061. (e) Noyori, R.; Hashiguchi, S. Acc. Chem. Res. 1997, 30, 97-102. (f) de Graauw, C. F.; Peters, J. A.; van Bekkum, H.; Huskens, J. Synthesis 1994, 1007-1017. (g) Bäckvall, J.-E.; Chowdhury, R. L.; Karlsson, U.; Wang, G. Z. in Perspectives in Coordination Chemistry; Williams, A. F., Floriani, C., Merbach, A. E., Eds.; Helvetica Chimica Acta: Basel, 1992; pp 463-486. (h) Zassinovich, G.; Mestroni, G.; Gladiali, S. Chem. Rev. 1992, 92, 1051-1069. (i) Matteoli, U.; Frediani, P.; Bianchi, M.; Botteghi, C.; Gladiali, S. J. Mol. Catal. 1981, 12, 265-319.
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For reviews on transfer-hydrogenations, see: (a) Blaser, H.-U.; Malan, C.; Pugin, B.; Spindler, F.; Steiner, H.; Studer, M. Adv. Synth. Catal. 2003, 345, 103-151. (b) Everaere, K.; Mortreux, A.; Carpentier, J.-F. Adv. Synth. Catal. 2003, 345, 67-77. (c) Bäckvall, J.-E. J. Organomet. Chem. 2002, 652, 105-111. (d) Palmer, M. J.; Wills, M. Tetrahedron: Asymmetry 1999, 10, 2045-2061. (e) Noyori, R.; Hashiguchi, S. Acc. Chem. Res. 1997, 30, 97-102. (f) de Graauw, C. F.; Peters, J. A.; van Bekkum, H.; Huskens, J. Synthesis 1994, 1007-1017. (g) Bäckvall, J.-E.; Chowdhury, R. L.; Karlsson, U.; Wang, G. Z. in Perspectives in Coordination Chemistry; Williams, A. F., Floriani, C., Merbach, A. E., Eds.; Helvetica Chimica Acta: Basel, 1992; pp 463-486. (h) Zassinovich, G.; Mestroni, G.; Gladiali, S. Chem. Rev. 1992, 92, 1051-1069. (i) Matteoli, U.; Frediani, P.; Bianchi, M.; Botteghi, C.; Gladiali, S. J. Mol. Catal. 1981, 12, 265-319.
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0019612027
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For reviews on transfer-hydrogenations, see: (a) Blaser, H.-U.; Malan, C.; Pugin, B.; Spindler, F.; Steiner, H.; Studer, M. Adv. Synth. Catal. 2003, 345, 103-151. (b) Everaere, K.; Mortreux, A.; Carpentier, J.-F. Adv. Synth. Catal. 2003, 345, 67-77. (c) Bäckvall, J.-E. J. Organomet. Chem. 2002, 652, 105-111. (d) Palmer, M. J.; Wills, M. Tetrahedron: Asymmetry 1999, 10, 2045-2061. (e) Noyori, R.; Hashiguchi, S. Acc. Chem. Res. 1997, 30, 97-102. (f) de Graauw, C. F.; Peters, J. A.; van Bekkum, H.; Huskens, J. Synthesis 1994, 1007-1017. (g) Bäckvall, J.-E.; Chowdhury, R. L.; Karlsson, U.; Wang, G. Z. in Perspectives in Coordination Chemistry; Williams, A. F., Floriani, C., Merbach, A. E., Eds.; Helvetica Chimica Acta: Basel, 1992; pp 463-486. (h) Zassinovich, G.; Mestroni, G.; Gladiali, S. Chem. Rev. 1992, 92, 1051-1069. (i) Matteoli, U.; Frediani, P.; Bianchi, M.; Botteghi, C.; Gladiali, S. J. Mol. Catal. 1981, 12, 265-319.
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Gladiali, S.5
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0000770930
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41
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-
17444380915
-
-
note
-
It should be pointed out that only three ligands depicted in Scheme 2 were examined in the asymmetric transfer-hydrogenation of acetophenone. The structural resemblance between these and the other 2-(aminomethyl)oxazoline ligands suggest a similarly poor outcome of the reaction. In fact, in a recent report a similar oxazoline-based ligand made from L-proline was used in the same reaction and this resulted in poor yields and moderate enantioselectivity; see ref 11c.
-
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33748247006
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2342556510
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For selected recent examples, see: (a) Braun, M.; Fleischer, R.; Mai, B.; Schneider, M.-A.; Lachenicht, S. Adv. Synth. Catal. 2004, 346, 474-482. (b) Bauer, T.; Gajewiak, J. Tetrahedron 2004, 60, 9163-9170. (c) Yus, M.; Ramón, D. J.; Prieto, O. Tetrahedron: Asymmetry 2003, 14, 1103-1114. (d) Kang, S.-W.; Ko, D.-H.; Kim, K. H.; Ha, D.-C. Org. Lett. 2003, 5, 4517-4519. (e) Bringmann, G.; Pfeifer, R.-M.; Rummey, C.; Hartner, K.; Breuning, M. J. Org. Chem. 2003, 68, 6859-6863. (f) Lake, F.; Moberg, C. Tetrahedron: Asymmetry 2001, 12, 755-760. (g) Xu, Q.; Wang, H.; Pan, X.; Chan, A. S. C.; Yang, T. Tetrahedron Lett. 2001, 42, 6171-6173. (h) Yang, X.; Shen, J.; Da, C.; Wang, H.; Su, W.; Liu, D.; Wang, R.; Choi, M. C. K.; Chan, A. S. C. Tetrahedron Lett. 2001, 42, 6573-6575.
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For selected recent examples, see: (a) Braun, M.; Fleischer, R.; Mai, B.; Schneider, M.-A.; Lachenicht, S. Adv. Synth. Catal. 2004, 346, 474-482. (b) Bauer, T.; Gajewiak, J. Tetrahedron 2004, 60, 9163-9170. (c) Yus, M.; Ramón, D. J.; Prieto, O. Tetrahedron: Asymmetry 2003, 14, 1103-1114. (d) Kang, S.-W.; Ko, D.-H.; Kim, K. H.; Ha, D.-C. Org. Lett. 2003, 5, 4517-4519. (e) Bringmann, G.; Pfeifer, R.-M.; Rummey, C.; Hartner, K.; Breuning, M. J. Org. Chem. 2003, 68, 6859-6863. (f) Lake, F.; Moberg, C. Tetrahedron: Asymmetry 2001, 12, 755-760. (g) Xu, Q.; Wang, H.; Pan, X.; Chan, A. S. C.; Yang, T. Tetrahedron Lett. 2001, 42, 6171-6173. (h) Yang, X.; Shen, J.; Da, C.; Wang, H.; Su, W.; Liu, D.; Wang, R.; Choi, M. C. K.; Chan, A. S. C. Tetrahedron Lett. 2001, 42, 6573-6575.
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For selected recent examples, see: (a) Braun, M.; Fleischer, R.; Mai, B.; Schneider, M.-A.; Lachenicht, S. Adv. Synth. Catal. 2004, 346, 474-482. (b) Bauer, T.; Gajewiak, J. Tetrahedron 2004, 60, 9163-9170. (c) Yus, M.; Ramón, D. J.; Prieto, O. Tetrahedron: Asymmetry 2003, 14, 1103-1114. (d) Kang, S.-W.; Ko, D.-H.; Kim, K. H.; Ha, D.-C. Org. Lett. 2003, 5, 4517-4519. (e) Bringmann, G.; Pfeifer, R.-M.; Rummey, C.; Hartner, K.; Breuning, M. J. Org. Chem. 2003, 68, 6859-6863. (f) Lake, F.; Moberg, C. Tetrahedron: Asymmetry 2001, 12, 755-760. (g) Xu, Q.; Wang, H.; Pan, X.; Chan, A. S. C.; Yang, T. Tetrahedron Lett. 2001, 42, 6171-6173. (h) Yang, X.; Shen, J.; Da, C.; Wang, H.; Su, W.; Liu, D.; Wang, R.; Choi, M. C. K.; Chan, A. S. C. Tetrahedron Lett. 2001, 42, 6573-6575.
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For selected recent examples, see: (a) Braun, M.; Fleischer, R.; Mai, B.; Schneider, M.-A.; Lachenicht, S. Adv. Synth. Catal. 2004, 346, 474-482. (b) Bauer, T.; Gajewiak, J. Tetrahedron 2004, 60, 9163-9170. (c) Yus, M.; Ramón, D. J.; Prieto, O. Tetrahedron: Asymmetry 2003, 14, 1103-1114. (d) Kang, S.-W.; Ko, D.-H.; Kim, K. H.; Ha, D.-C. Org. Lett. 2003, 5, 4517-4519. (e) Bringmann, G.; Pfeifer, R.-M.; Rummey, C.; Hartner, K.; Breuning, M. J. Org. Chem. 2003, 68, 6859-6863. (f) Lake, F.; Moberg, C. Tetrahedron: Asymmetry 2001, 12, 755-760. (g) Xu, Q.; Wang, H.; Pan, X.; Chan, A. S. C.; Yang, T. Tetrahedron Lett. 2001, 42, 6171-6173. (h) Yang, X.; Shen, J.; Da, C.; Wang, H.; Su, W.; Liu, D.; Wang, R.; Choi, M. C. K.; Chan, A. S. C. Tetrahedron Lett. 2001, 42, 6573-6575.
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For selected recent examples, see: (a) Braun, M.; Fleischer, R.; Mai, B.; Schneider, M.-A.; Lachenicht, S. Adv. Synth. Catal. 2004, 346, 474-482. (b) Bauer, T.; Gajewiak, J. Tetrahedron 2004, 60, 9163-9170. (c) Yus, M.; Ramón, D. J.; Prieto, O. Tetrahedron: Asymmetry 2003, 14, 1103-1114. (d) Kang, S.-W.; Ko, D.-H.; Kim, K. H.; Ha, D.-C. Org. Lett. 2003, 5, 4517-4519. (e) Bringmann, G.; Pfeifer, R.-M.; Rummey, C.; Hartner, K.; Breuning, M. J. Org. Chem. 2003, 68, 6859-6863. (f) Lake, F.; Moberg, C. Tetrahedron: Asymmetry 2001, 12, 755-760. (g) Xu, Q.; Wang, H.; Pan, X.; Chan, A. S. C.; Yang, T. Tetrahedron Lett. 2001, 42, 6171-6173. (h) Yang, X.; Shen, J.; Da, C.; Wang, H.; Su, W.; Liu, D.; Wang, R.; Choi, M. C. K.; Chan, A. S. C. Tetrahedron Lett. 2001, 42, 6573-6575.
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For selected recent examples, see: (a) Braun, M.; Fleischer, R.; Mai, B.; Schneider, M.-A.; Lachenicht, S. Adv. Synth. Catal. 2004, 346, 474-482. (b) Bauer, T.; Gajewiak, J. Tetrahedron 2004, 60, 9163-9170. (c) Yus, M.; Ramón, D. J.; Prieto, O. Tetrahedron: Asymmetry 2003, 14, 1103-1114. (d) Kang, S.-W.; Ko, D.-H.; Kim, K. H.; Ha, D.-C. Org. Lett. 2003, 5, 4517-4519. (e) Bringmann, G.; Pfeifer, R.-M.; Rummey, C.; Hartner, K.; Breuning, M. J. Org. Chem. 2003, 68, 6859-6863. (f) Lake, F.; Moberg, C. Tetrahedron: Asymmetry 2001, 12, 755-760. (g) Xu, Q.; Wang, H.; Pan, X.; Chan, A. S. C.; Yang, T. Tetrahedron Lett. 2001, 42, 6171-6173. (h) Yang, X.; Shen, J.; Da, C.; Wang, H.; Su, W.; Liu, D.; Wang, R.; Choi, M. C. K.; Chan, A. S. C. Tetrahedron Lett. 2001, 42, 6573-6575.
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For selected recent examples, see: (a) Braun, M.; Fleischer, R.; Mai, B.; Schneider, M.-A.; Lachenicht, S. Adv. Synth. Catal. 2004, 346, 474-482. (b) Bauer, T.; Gajewiak, J. Tetrahedron 2004, 60, 9163-9170. (c) Yus, M.; Ramón, D. J.; Prieto, O. Tetrahedron: Asymmetry 2003, 14, 1103-1114. (d) Kang, S.-W.; Ko, D.-H.; Kim, K. H.; Ha, D.-C. Org. Lett. 2003, 5, 4517-4519. (e) Bringmann, G.; Pfeifer, R.-M.; Rummey, C.; Hartner, K.; Breuning, M. J. Org. Chem. 2003, 68, 6859-6863. (f) Lake, F.; Moberg, C. Tetrahedron: Asymmetry 2001, 12, 755-760. (g) Xu, Q.; Wang, H.; Pan, X.; Chan, A. S. C.; Yang, T. Tetrahedron Lett. 2001, 42, 6171-6173. (h) Yang, X.; Shen, J.; Da, C.; Wang, H.; Su, W.; Liu, D.; Wang, R.; Choi, M. C. K.; Chan, A. S. C. Tetrahedron Lett. 2001, 42, 6573-6575.
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For selected recent examples, see: (a) Braun, M.; Fleischer, R.; Mai, B.; Schneider, M.-A.; Lachenicht, S. Adv. Synth. Catal. 2004, 346, 474-482. (b) Bauer, T.; Gajewiak, J. Tetrahedron 2004, 60, 9163-9170. (c) Yus, M.; Ramón, D. J.; Prieto, O. Tetrahedron: Asymmetry 2003, 14, 1103-1114. (d) Kang, S.-W.; Ko, D.-H.; Kim, K. H.; Ha, D.-C. Org. Lett. 2003, 5, 4517-4519. (e) Bringmann, G.; Pfeifer, R.-M.; Rummey, C.; Hartner, K.; Breuning, M. J. Org. Chem. 2003, 68, 6859-6863. (f) Lake, F.; Moberg, C. Tetrahedron: Asymmetry 2001, 12, 755-760. (g) Xu, Q.; Wang, H.; Pan, X.; Chan, A. S. C.; Yang, T. Tetrahedron Lett. 2001, 42, 6171-6173. (h) Yang, X.; Shen, J.; Da, C.; Wang, H.; Su, W.; Liu, D.; Wang, R.; Choi, M. C. K.; Chan, A. S. C. Tetrahedron Lett. 2001, 42, 6573-6575.
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(d) Gennari, C.; Ceccarelli, S.; Piarulli, U.; Montalbetti, C. A. G. N.; Jackson, R. F. W. J. Org. Chem. 1998, 63, 5312-5313.
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17444364568
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note
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Full conversion was observed after 12 h.
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62
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0000389195
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Seebach, D.; Plattner, D. A.; Beck, A. K.; Wang, Y. M.; Hunzicker, D.; Petter, W. Helv. Chim. Acta 1992, 75, 2171-2209.
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Seebach, D.1
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Petter, W.6
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64
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17444413909
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note
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3 resulted in substantial decomposition, presumable due to residual acid of the solvent.
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65
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0000070865
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Dimethylmalonyl chloride was prepared from dimethylmalonic acid: Evans, D. A.; Peterson, G. S.; Johnson, J. S.; Barnes, D. M.: Campos, K. R.; Woerpel, K. A. J. Org. Chem. 1998, 63, 4541-4544.
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Woerpel, K.A.6
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Bakker, M.; Spruijt, A. S.; Rantwijk, F. van; Sheldon, R. A. Tetrahedron: Asymmetry 2000, 11, 1801-1808.
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Sheldon, R.A.4
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