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EL PROCESO TEATRAL COMO DISCURSO POLÍTICO DE LAS VÍCTIMAS Los integrantes comprendieron la importancia del proceso teatral para construir y

Análisis de datos y resultados

EL PROCESO TEATRAL COMO DISCURSO POLÍTICO DE LAS VÍCTIMAS Los integrantes comprendieron la importancia del proceso teatral para construir y

Kinetic investigation of the reaction of the ylide 1a with nitrostyrene 7b in DMSO

Table 31: Kinetics of the reaction of 1a with nitrostyrene 7b in DMSO at 20°C (diode array UV-Vis

spectrometer,  = 363 nm).

No. [E]0 / mol L-1 [Nu]0 / mol L-1 kobs / s-1 RAK 23.3-2-1 4.16 × 10-5 4.29 × 10-4 2.30 × 10-3 RAK 23.3-2-2 4.86 × 10-5 6.41 × 10-4 3.55 × 10-3 RAK 23.3-2-3 4.90 × 10-5 8.61 × 10-4 4.75 × 10-3 RAK 23.3-2-4 4.88 × 10-5 1.07 × 10-3 5.84 × 10-3 RAK 23.3-2-5 4.79 × 10-5 1.26 × 10-3 6.88 × 10-3 k2 = 5.46 L mol-1 s-1

Determination of the N-Parameter for 1d

(Correlation of log k2 for the Reactions of 1d w ith 2f–k

Versus the Electrophilicity Parameters E for 2f–k)

y = 6.35818E-01x + 1.31052E+01 R2 = 9.98102E-01 0 1 2 3 4 5 6 -20 -18 -16 -14 -12 -10 E lo g k2 y = 5.460E+00x + 6.215E-06 R2 = 9.995E-01 0 0.002 0.004 0.006 0.008 0 0.0004 0.0008 0.0012 0.0016 [Nu] / mol L-1 kobs / s -1

Kinetic investigations of the reactions of the carbanion 1c with the nitrostyrenes 7 in DMSO

Table 32: Kinetics of the reaction of 1c with nitrostyrene 7a in DMSO at 20°C (stopped-flow UV-Vis

spectrometer,  = 330 nm).

No. [E]0 / mol L-1 [Nu]0 / mol L-1 kobs / s-1 RAK 21.9-1 3.76 × 10-5 5.08 × 10-4 5.88 × 10-2 RAK 21.9-2 3.76 × 10-5 7.62 × 10-4 8.90 × 10-2 RAK 21.9-3 3.76 × 10-5 1.02 × 10-3 1.21 × 10-1 RAK 21.9-4 3.76 × 10-5 1.27 × 10-3 1.57 × 10-1 RAK 21.9-5 3.76 × 10-5 1.52 × 10-3 1.83 × 10-1 k2 = 1.25 102 L mol-1 s-1

Table 33: Kinetics of the reaction of 1c with nitrostyrene 7b in DMSO at 20°C (stopped-flow UV-Vis

spectrometer,  = 360 nm).

No. [E]0 / mol L-1 [Nu]0 / mol L-1 kobs / s-1 RAK 21.10-1 3.74 × 10-5 7.62 × 10-4 2.96 × 10-2 RAK 21.10-2 3.74 × 10-5 1.02 × 10-3 4.03 × 10-2 RAK 21.10-3 3.74 × 10-5 1.27 × 10-3 5.08 × 10-2 RAK 21.10-4 3.74 × 10-5 1.52 × 10-3 6.02 × 10-2 RAK 21.10-5 3.74 × 10-5 1.78 × 10-3 7.02 × 10-2 k2 = 3.98 101 L mol-1 s-1

Kinetic investigations of the reactions of the carbanion 1d with the nitrostyrenes 7 in DMSO

Table 34: Kinetics of the reaction of 1d with nitrostyrene 7a in DMSO at 20°C (stopped-flow UV-Vis

spectrometer,  = 330 nm).

No. [E]0 / mol L-1 [Nu]0 / mol L-1 kobs / s-1 RAK 22.8-1 3.96 × 10-5 4.53 × 10-4 4.85 RAK 22.8-2 3.96 × 10-5 6.80 × 10-4 7.77 RAK 22.8-3 3.96 × 10-5 9.07 × 10-4 1.04 × 101 RAK 22.8-4 3.96 × 10-5 1.13 × 10-3 1.32 × 101 RAK 22.8-5 3.96 × 10-5 1.36 × 10-3 1.59 × 101 k2 = 1.21 104 L mol-1 s-1 y = 1.246E+02x - 4.800E-03 R2 = 9.981E-01 0 0.05 0.1 0.15 0.2 0 0.0004 0.0008 0.0012 0.0016 [Nu–] / mol L-1 kob s / s -1 y = 3.982E+01x - 3.300E-04 R2 = 9.994E-01 0 0.025 0.05 0.075 0.1 0 0.0005 0.001 0.0015 0.002 [Nu–] / mol L-1 kobs / s -1 y = 1.214E+04x - 5.880E-01 R2 = 9.998E-01 0 4 8 12 16 0 0.0004 0.0008 0.0012 0.0016 [Nu–] / mol L-1 kobs / s -1

Table 35: Kinetics of the reaction of 1d with nitrostyrene 7b in DMSO at 20°C (stopped-flow UV-Vis

spectrometer,  = 360 nm).

No. [E]0 / mol L-1 [Nu]0 / mol L-1 kobs / s-1 RAK 22.9-1 3.82 × 10-5 4.53 × 10-4 1.63 RAK 22.9-2 3.82 × 10-5 6.80 × 10-4 2.46 RAK 22.9-3 3.82 × 10-5 9.07 × 10-4 3.21 RAK 22.9-4 3.82 × 10-5 1.13 × 10-3 4.03 RAK 22.9-5 3.82 × 10-5 1.36 × 10-3 4.79 k2 = 3.48 103 L mol-1 s-1

5 References

[1] For selected reviews, see: (a) Maryanoff, B. E.; Reitz, A. B. Phosphorus, Sulfur Silicon Relat. Elem. 1986, 27, 167-189. (b) Maryanoff, B. E.; Reitz, A. B. Chem. Rev. 1989, 89, 863-927. (c) Vedejs, E.; Peterson, M. J. Top. Stereochem. 1994, 21, 1-157. (d) Vedejs, E.; Peterson, M. J. In Advances in Carbanion Chemistry; Snieckus, V., Ed.; JAI Press: London, 1996; Vol. 2, pp 1-85. (e) Nicolaou, K. C.; Härter, M. W.; Gunzner, J. L.; Nadin, A. Liebigs Ann./Recueil 1997, 1283-1301. (f) Kolodiazhnyi, O. I., Phosphorus

Ylides; Wiley-VCH: Weinheim, 1999; pp 258-358.

[2] (a) Johnson, A. W.; LaCount, R. B. Chem. Ind. (London) 1958, 1440-1441. (b) Johnson, A. W.; LaCount, R. B. J. Am. Chem. Soc. 1961, 83, 417-423. (c) Corey, E. J.; Chaykovsky, M. J. Am. Chem. Soc. 1962, 84, 867-868. (d) Corey, E. J.; Chaykovsky, M. J. Am. Chem. Soc. 1962, 84, 3782-3783. (e) Franzen, V.; Driessen, H.-E.

Tetrahedron Lett. 1962, 3, 661-662. For selected reviews, see: (f) Trost, B. M.; Melvin, L. S. Sulfur Ylides. Emerging Synthetic Intermediates; Academic Press: New York, 1975. (g) Li, A.-H.; Dai, L.-X.; Aggarwal, V. K. Chem. Rev. 1997, 97, 2341-2372. (h) Clark, J. S. In Nitrogen, Oxygen and Sulfur Ylide Chemistry; Clark, J. S., Ed.; Oxford University Press: New York, 2002; pp 1-114. (i) Aggarwal, V. K.; Richardson, J. In

Science of Synthesis; Georg Thieme Verlag: Stuttgart, 2004; Vol. 27, pp 21-104. (j) Aggarwal, V. K.; Winn, C. L. Acc. Chem. Res. 2004, 37, 611-620. (k) Aggarwal, V. K.; Richardson, J.; Winn, C. L. In Science of Synthesis, Georg Thieme Verlag: Stuttgart, 2005; Vol. 22, pp 11-73. (l) McGarrigle, E. M.; Aggarwal, V. K. In Enantioselective Organocatalysis; Dalko, P. I., Ed.; Wiley-VCH: Weinheim, 2007; pp 357-390. (m) McGarrigle, E. M.; Myers, E. L.; Illa, O.; Shaw, M. A.; Riches, S. L.; Aggarwal, V. K.

Chem. Rev. 2007, 107, 5841-5883. (n) Aggarwal, V. K.; Crimmin, M.; Riches, S. In

y = 3.480E+03x + 6.800E-02 R2 = 9.998E-01 0 1.5 3 4.5 6 0 0.0004 0.0008 0.0012 0.0016 [Nu–] / mol L-1 kob s / s -1

Science of Synthesis; Georg Thieme Verlag: Stuttgart, 2008; Vol. 37, pp 321-406. (o) Brière, J.-F.; Metzner, P. In Organosulfur Chemistry in Asymmetric Synthesis; Toru, T., Bolm, C., Eds.; Wiley-VCH: Weinheim, 2008; pp 179-208.

[3] (a) Stowell, J. C. Carbanions in Organic Synthesis, John Wiley & Sons: New York, 1979. (b) Gais, H. J.; Hellmann, G. J. Am. Chem. Soc. 1992, 114, 4439-4440. (c) Solladié-Cavallo, A.; Roche, D.; Fischer, J.; De Cian, A. J. Org. Chem. 1996, 61, 2690- 2694. (d) Gais, H.-J.; v. Gumpel, M.; Raabe, G.; Müller, J.; Braun, S.; Lindner, H. J.; Rohs, S.; Runsink, J. Eur. J. Org. Chem. 1999, 1627-1651. (e) Volonterio, A.; Zanda, M.; In Organosulfur Chemistry in Asymmetric Synthesis; Toru, T., Bolm, C., Eds.; Wiley-VCH: Weinheim, 2008; pp. 351-374. (f) Gais, H.-J. In Organosulfur Chemistry in Asymmetric Synthesis; Toru, T., Bolm, C., Eds.; Wiley-VCH: Weinheim, 2008; pp. 375-398.

[4] (a) Happer, D. A. R.; Steenson, B. E. Synthesis 1980, 806-807. (b) Tanikaga, R.; Tamura, T.; Nozaki, Y.; Kaji, A. J. Chem. Soc., Chem. Commun. 1984, 87-88. (c) Tanikaga, R.; Konya, N.; Tamura, T.; Kaji, A. J. Chem. Soc., Perkin Trans. 1 1987, 825-830.

[5] (a) Julia, M.; Paris, J.-M. Tetrahedron Lett. 1973, 14, 4833-4836. (b) Kocienski, P. J.; Lythgoe, B.; Ruston, S. J. Chem. Soc., Perkin Trans. 1 1978, 829-834. (c) Julia, M.

Pure Appl. Chem. 1985, 57, 763-768. (d) Blakemore, P. R. J. Chem. Soc., Perkin Trans.

1 2002, 2563-2585.

[6] (a) Ratts, K. W. J. Org. Chem. 1972, 37, 848-851. (b) Zhang, X.-M.; Bordwell, F. G. J.

Am. Chem. Soc. 1994, 116, 968-972. (c) Cheng, J.-P.; Liu, B.; Zhang, X.-M. J. Org.

Chem. 1998, 63, 7574-7575. (d) Cheng, J.-P.; Liu, B.; Zhao, Y.; Sun, Y.; Zhang, X.-M.; Lu, Y. J. Org. Chem. 1999, 64, 604-610. (e) Fu, Y.; Wang, H.-J.; Chong, S.-S.; Guo, Q.- X.; Liu, L. J. Org. Chem. 2009, 74, 810-819.

[7] (a) Volatron, F.; Eisenstein, O. J. Am. Chem. Soc. 1987, 109, 1-14. (b) Aggarwal, V. K.; Harvey, J. N.; Robiette, R. Angew. Chem. 2005, 117, 5604-5607; Angew. Chem. Int. Ed. 2005, 44, 5468-5471.

[8] (a) Lucius, R.; Mayr, H. Angew. Chem. 2000, 112, 2086-2089; Angew. Chem. Int. Ed. 2000, 39, 1995-1997. (b) Berger, S. T. A.; Ofial, A. R.; Mayr, H. J. Am. Chem. Soc. 2007, 129, 9753-9761. (c) Appel, R.; Loos, R.; Mayr, H. J. Am. Chem. Soc. 2009, 131, 704-714.

[9] (a) Mayr, H.; Patz, M. Angew. Chem. 1994, 106, 990-1010; Angew. Chem. Int. Ed. Engl. 1994, 33, 938-957. (b) Mayr, H.; Bug, T.; Gotta, M. F.; Hering, N.; Irrgang, B.; Janker,

B.; Kempf, B.; Loos, R.; Ofial, A. R.; Remennikov, G.; Schimmel, H. J. Am. Chem. Soc.2001, 123, 9500-9512. (c) Lucius, R.; Loos, R.; Mayr, H. Angew. Chem.2002, 114, 97-102; Angew. Chem. Int. Ed. 2002, 41, 91-95. (d) Mayr, H.; Kempf, B.; Ofial, A. R.

Acc. Chem. Res.2003, 36, 66-77. (e) Mayr, H.; Ofial, A. R. Pure Appl. Chem.2005, 77, 1807-1821. (f) Mayr, H.; Ofial, A. R. J. Phys. Org. Chem.2008, 21, 584-595.

[10] Zenz, I.; Mayr, H. unpublished results.

[11] (a) Lu, L.-Q.; Cao, Y.-J.; Liu, X.-P.; An, J.; Yao, C.-J.; Ming, Z.-H.; Xiao, W.-J. J. Am. Chem. Soc. 2008, 130, 6946-6948. (b) Lu, L.-Q.; Li, F.; An, J.; Zhang, J.-J.; An, X.-L.; Hua, Q.-L.; Xiao, W.-J. Angew. Chem. 2009, 121, 9706-9709; Angew. Chem. Int. Ed. 2009, 48, 9542-9545.

[12] Robiette, R.; Richardson, J.; Aggarwal, V. K.; Harvey, J. N. J. Am. Chem. Soc. 2006,

128, 2394-2409.

[13] (a) Aggarwal, V. K.; Calamai, S.; Ford, J. G. J. Chem. Soc., Perkin Trans. 1 1997, 593- 599. (b) Aggarwal, V. K.; Harvey, J. N.; Richardson, J. J. Am. Chem. Soc. 2002, 124, 5747-5756. (c) Edwards, D. R.; Montoya-Peleaz, P.; Crudden, C. M. Org. Lett. 2007, 9, 5481-5484.

[14] (a) Payne, G. B. J. Org. Chem. 1967, 32, 3351-3355. (b) Jeckel, D.; Gosselck, J.

Tetrahedron Lett.1972, 13, 2101-2104.

[15] (a) Labuschagne, A. J. H.; Malherbe, J. S.; Meyer, C. J.; Schneider, D. F.J. Chem. Soc., Perkin Trans. 1 1978, 955-961. (b) Coppola, G. M.; Hardtmann, G. E. J. Heterocycl.

Chem.1979, 16, 1605-1610.

[16] Gairaud, C. B.; Lappin, G. R. J. Org. Chem.1953, 18, 1-3.

[17] (a) Evans, S.; Nesvadba, P.; Allenbach S. (Ciba-Geigy AG), EP-B 744392, 1996 [Chem.

Abstr.1997, 126, 46968v]. (b) Richter, D.; Hampel, N.; Singer, T.; Ofial, A. R.; Mayr, H. Eur. J. Org. Chem. 2009, 3203-3211.

[18] Based on a comparable procedure; see: Seebach, D.; Leitz, H.F. Angew. Chem. 1971,

Chapter 5: Scope and Limitations of Cyclopropanations