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Volumn , Issue 20, 2007, Pages 3349-3364

Stereoselective synthesis of hexahydroisobenzofuran-4(1H)-ones from chiral substituted cyclohex-2-enyl carbamates via asymmetric homoaldol reaction and THF cyclocondensation

Author keywords

Asymmetric synthesis; Heterocycles; Homoaldol reactions; Metallated allyl carbamates; Tetrahydrofuran synthesis

Indexed keywords


EID: 34447559472     PISSN: 1434193X     EISSN: 10990690     Source Type: Journal    
DOI: 10.1002/ejoc.200700220     Document Type: Article
Times cited : (8)

References (55)
  • 3
    • 0035913732 scopus 로고    scopus 로고
    • Total synthesis: a P. Bernadelli, O. M. Moradei, D. Friedrich, J. Yang, F. Gallou, B. P. Dyck, R. W. Doskotch, T. Lange, L. A. Paquette, J. Am. Chem. Soc. 2001, 123, 9021-9032;
    • Total synthesis: a) P. Bernadelli, O. M. Moradei, D. Friedrich, J. Yang, F. Gallou, B. P. Dyck, R. W. Doskotch, T. Lange, L. A. Paquette, J. Am. Chem. Soc. 2001, 123, 9021-9032;
  • 5
    • 0038547883 scopus 로고    scopus 로고
    • Total synthesis: O. Corminboeuf, L. E. Overman, L. D. Pennington, J. Am. Chem. Soc. 2003, 125, 6650-6652.
    • Total synthesis: O. Corminboeuf, L. E. Overman, L. D. Pennington, J. Am. Chem. Soc. 2003, 125, 6650-6652.
  • 12
    • 34248226223 scopus 로고    scopus 로고
    • Angew. Chem. Int. Ed. 2007, 46, 1645-1649.
    • (2007) Chem. Int. Ed , vol.46 , pp. 1645-1649
    • Angew1
  • 13
    • 0000854142 scopus 로고    scopus 로고
    • For reviews, see: a
    • For reviews, see: a) D. Hoppe, T. Hense, Angew. Chem. 1997, 109, 2376-2410;
    • (1997) Angew. Chem , vol.109 , pp. 2376-2410
    • Hoppe, D.1    Hense, T.2
  • 16
    • 0037585195 scopus 로고    scopus 로고
    • Organolithiums in Enantioselective Synthesis
    • Ed, D. M. Hodgson, Springer, Berlin
    • c) D. Hoppe, F. Marr, M. Brüggemann, Organolithiums in Enantioselective Synthesis in Top. Organomet. Chem. (Ed.: D. M. Hodgson), Springer, Berlin, 2003, vol. 5, pp. 61-138;
    • (2003) Top. Organomet. Chem , vol.5 , pp. 61-138
    • Hoppe, D.1    Marr, F.2    Brüggemann, M.3
  • 17
    • 0842300569 scopus 로고    scopus 로고
    • Organolithiums in Enantioselective Synthesis
    • Ed, D. M. Hodgson, Springer, Berlin
    • d) P. Beak, T. A. Johnson, D. D. Kim, S. H. Lim, Organolithiums in Enantioselective Synthesis in Top. Organomet. Chem. (Ed.: D. M. Hodgson), Springer, Berlin, 2003, vol. 5, pp. 139-176;
    • (2003) Top. Organomet. Chem , vol.5 , pp. 139-176
    • Beak, P.1    Johnson, T.A.2    Kim, D.D.3    Lim, S.H.4
  • 23
    • 0037130642 scopus 로고    scopus 로고
    • Synthesis of enantiomerically pure (R)-(-)-crypton: a) J. Evarts, E. Torres, P. L. Fuchs, J. Am. Chem. Soc. 2002, 124, 11093-11101;
    • Synthesis of enantiomerically pure (R)-(-)-crypton: a) J. Evarts, E. Torres, P. L. Fuchs, J. Am. Chem. Soc. 2002, 124, 11093-11101;
  • 24
    • 0042179715 scopus 로고    scopus 로고
    • rac-crypton (<5% ee) from nopinon and reduction: b) J. M. Coxon, G. J. Hydes, P. J. Steel, Tetrahedron 1985, 41, 5213-5217;
    • rac-crypton (<5% ee) from nopinon and reduction: b) J. M. Coxon, G. J. Hydes, P. J. Steel, Tetrahedron 1985, 41, 5213-5217;
  • 26
    • 34447506982 scopus 로고    scopus 로고
    • Data sets were collected with an Enraf-Nonius CAD4 and a Nonius KappaCCD diffractometers. Programs used: data collection EXPRESS (Nonius B. V., 1994) and COLLECT (Nonius B. V., 1998), data reduction MolEN (K. Fair, Enraf-Nonius B. V., 1990) and Denzo-SMN (Z. Otwinowski, W. Minor, Methods in Enzymology, 1997, 276, 307-326),
    • Data sets were collected with an Enraf-Nonius CAD4 and a Nonius KappaCCD diffractometers. Programs used: data collection EXPRESS (Nonius B. V., 1994) and COLLECT (Nonius B. V., 1998), data reduction MolEN (K. Fair, Enraf-Nonius B. V., 1990) and Denzo-SMN (Z. Otwinowski, W. Minor, Methods in Enzymology, 1997, 276, 307-326),
  • 27
    • 0038414570 scopus 로고    scopus 로고
    • absorption correction Denzo (Z. Otwinowski, D. Borek, W. Majewski, W. Minor, Acta Crystallogr. Ser. A 2003, 59, 228-234),
    • absorption correction Denzo (Z. Otwinowski, D. Borek, W. Majewski, W. Minor, Acta Crystallogr. Ser. A 2003, 59, 228-234),
  • 28
    • 84943920736 scopus 로고    scopus 로고
    • structure solution SHELXS-97 (G. M. Sheldrick, Acta Crystallogr. Ser. A 1990, 46, 467-473), structure refinement SHELXL-97 (G. M. Sheldrick, University of Göttingen, 1997), graphics SCHAKAL (E. Keller, University of Freiburg, 1997). CCDC-639288 to -639292 contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/ data_request/cif.
    • structure solution SHELXS-97 (G. M. Sheldrick, Acta Crystallogr. Ser. A 1990, 46, 467-473), structure refinement SHELXL-97 (G. M. Sheldrick, University of Göttingen, 1997), graphics SCHAKAL (E. Keller, University of Freiburg, 1997). CCDC-639288 to -639292 contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/ data_request/cif.
  • 29
    • 34447504278 scopus 로고    scopus 로고
    • X-ray crystal structure analysis for 11b: formula C 30H39NO3, M, 461.62, colorless crystal 0.45 x 0.20 x 0.20 mm, a, 7.728(1, b, 10.606(1, c, 32.505(4) Å, V, 2664.2(5) Å3, ρcalc, 1.151 g cm-3, μ, 0.572 mm-1, empirical absorption correction (0.783 ≤ T ≤ 0.894, Z, 4, orthorhombic, space group P212121 (No. 19, λ, 1.54178 Å, T, 223 K, ω/2θ scans, 3121 reflections collected, h, k, l, sin9)/λ, 0.62 Å-1, 3121 independent and 2227 observed reflections [I ≥ 2 σ(I, 315 refined parameters, R, 0.048, wR2, 0.145, Flack parameter 0.1(5, max. residual electron density 0.21, 0.20) e Å-3, hydrogen atoms calculated and refined as riding atoms
    • -3, hydrogen atoms calculated and refined as riding atoms.
  • 34
    • 0242632891 scopus 로고    scopus 로고
    • Ed, M. Schlosser, Wiley-VCH, Chichester, 2nd ed, pp
    • b) M. T. Reetz in Organometallics in Synthesis (Ed.: M. Schlosser), Wiley-VCH, Chichester, 2002, 2nd ed., pp. 817-923;
    • (2002) Organometallics in Synthesis , pp. 817-923
    • Reetz, M.T.1
  • 41
    • 34447505434 scopus 로고    scopus 로고
    • A boat-like transition state in which the substituent R occupies an equatorial position would lead to eclipsed interactions with the y-substituents of the allyl carbamate. The chair-like transition states TS-16 and TS-29 explain, why the yields of the homoaldol reactions with sterically demanding alkanals in contrast to arylic aldehydes are better for 3 than for β-methyl-substituted carbamate 2, where the 1,3-diaxial interactions are much larger.
    • A boat-like transition state in which the substituent R occupies an equatorial position would lead to eclipsed interactions with the y-substituents of the allyl carbamate. The chair-like transition states TS-16 and TS-29 explain, why the yields of the homoaldol reactions with sterically demanding alkanals in contrast to arylic aldehydes are better for 3 than for β-methyl-substituted carbamate 2, where the 1,3-diaxial interactions are much larger.
  • 42
    • 0001153549 scopus 로고    scopus 로고
    • A boat-like transition state was proposed for several titanium-mediated aldol reactions with persubstituted enolates, see: a S. Yamago, D. Machii, E. Nakamura, J. Org. Chem. 1991, 56, 2098-2106;
    • A boat-like transition state was proposed for several titanium-mediated aldol reactions with persubstituted enolates, see: a) S. Yamago, D. Machii, E. Nakamura, J. Org. Chem. 1991, 56, 2098-2106;
  • 44
    • 34447525931 scopus 로고    scopus 로고
    • Diploma Thesis, University of Münster
    • J. Becker, Diploma Thesis, University of Münster, 2005.
    • (2005)
    • Becker, J.1
  • 45
    • 0011229374 scopus 로고    scopus 로고
    • For the reversal of anti to syn diastereoselectivity in a) crotyltitanium or b) tiglyltitanocene reactions, see: a J. Szymoniak, N. Thery, C. Moïse, Synlett 1997, 1239-1240;
    • For the reversal of anti to syn diastereoselectivity in a) crotyltitanium or b) tiglyltitanocene reactions, see: a) J. Szymoniak, N. Thery, C. Moïse, Synlett 1997, 1239-1240;
  • 47
    • 34447524389 scopus 로고    scopus 로고
    • X-ray crystal structure analysis for rac-31a: formula C23H35NO3, M, 373.52, colorless crystal 0.50 x 0.25 x 0.05 mm, a, 11.395(1, b, 18.803(6, c, 10.359(1) Å, V, 2219.5(3) Å3, ρcalc, 1.118 g cm-3, μ, 0.572 mm-1, empirical absorption correction (0.763 ≤ T ≤ 0.972, Z, 4, orthorhombic, space group P212121 (No. 19, λ, 1.54178 Å, T, 223 K, ω and φ scans, 9789 reflections collected (±h, ±k, ±l, sinθ)/λ, 0.60 Å-1, 3647 independent (Rint, 0.041) and 3346 observed reflections [I ≥ 2 σ(I, 251 refined parameters, R, 0.049, wR 2, 0.133, Flack parameter 0.5(3, max. residual electron density 0.12, 0.15) e A
    • -3, hydrogen atoms calculated and refined as riding atoms.
  • 49
    • 34447506980 scopus 로고    scopus 로고
    • X-ray crystal structure analysis for 38a: formula C 28H28O2, M, 396.50, colorless crystal 0.55 x 0.15 x 0.06 mm, a, 8.811(1, b, 12.110(1, c, 11.188(1) Å, β, 110.23(1)°, V, 1120.1(2) Å3, ρcalc, 1.176 g cm-3, μ, 0.561 mm-1, empirical absorption correction (0.748 ≤ T ≤ 0.967, Z, 2, monoclinic, space group P21 (No. 4, λ, 1.54178 Å, T, 223 K, ω and ρ scans, 11166 reflections collected (±h, ±k, ±l, sinθ)/λ, 0.58 Å-1, 2749 independent (Rint, 0.051) and 2409 observed reflections [I ≥ 2σ(I, 273 refined parameters, R, 0.041, wR 2, 0.110, Flack parameter -0.2(4, max. residual electron density 0.10, 0.11) e Å-3
    • -3, hydrogen atoms calculated and refined as riding atoms.
  • 50
    • 34447540638 scopus 로고    scopus 로고
    • X-ray crystal structure analysis for 41a: formula C 23H25BrO2, M, 413.34, colorless crystal 0.45 x 0.10 x 0.10 mm, a, 11.838(1, b, 5.945(1, c, 14.515(1) Å, β, 98.72(1)°, V, 1009.7(2) Å3, ρcalc, 1.360 g cm-3, μ, 2.871 mm-1, empirical absorption correction (0.358 ≤ T ≤ 0.761, Z, 2, monoclinic, space group P21 (No. 4, λ, 1.54178 Å, T, 223 K, ω and ρ scans, 6521 reflections collected (±h, ±k, ±l, sinθ)/λ, 0.60 Å-1, 2642 independent (Rint, 0.036) and 2560 observed reflections [I ≥ 2σ(I, 237 refined parameters, R, 0.038, wR 2, 0.101, Flack parameter 0.07(2, max. residual electron density 0.32, 0.45) e Å-3
    • -3, hydrogen atoms calculated and refined as riding atoms.
  • 51
    • 34447501296 scopus 로고    scopus 로고
    • The relative configuration of rac-41a, which crystallizes in a different space group than 41a, was also determined by X-ray crystal structure analysis: formula C23H25BrO2, M, 413.34, colorless crystal 0.35 x 0.25 x 0.10 mm, a, 38.648(1, b, 11.462(6, c, 17.901(1) Å, V, 7929.8(8) Å3, ρcalc, 1.385 g cm-3, μ, 2.924 mm-1, empirical absorption correction (0.428 ≤ T ≤ 0.759, Z, 16, orthorhombic, space group Fdd2 (No. 43, λ, 1.54178 Å, T, 223 K, ω and φ scans, 8967 reflections collected (±h, ±k, ±l, sinθ)/λ, 0.60 Å-1, 3251 independent (Rint, 0.033) and 3226 observed reflections [I ≥ 2σI, 238 refined parameters, R, 0.028, wR 2, 0
    • -3, hydrogen atoms calculated and refined as riding atoms.
  • 53
    • 34447544963 scopus 로고    scopus 로고
    • Besides the pure diastereomers, fractions of diastereomeric mixtures where obtained, which were separated by repeated chromatography
    • Besides the pure diastereomers, fractions of diastereomeric mixtures where obtained, which were separated by repeated chromatography.
  • 54
    • 34447540639 scopus 로고    scopus 로고
    • The diastereomeric ratio was determined from the crude products by GC (HP-5).
    • The diastereomeric ratio was determined from the crude products by GC (HP-5).
  • 55
    • 34447538768 scopus 로고    scopus 로고
    • The concentration of the carbamate solution is critical for good yields. 1.3 equiv. sBuLi can be used in small scale reactions (0.25 mmol), at scales of ≥ 1.0 mmol 1.0 to 1.05 equiv. of carefully titrated sBuLi and rac-26 are recommended for optimum yields.
    • The concentration of the carbamate solution is critical for good yields. 1.3 equiv. sBuLi can be used in small scale reactions (0.25 mmol), at scales of ≥ 1.0 mmol 1.0 to 1.05 equiv. of carefully titrated sBuLi and rac-26 are recommended for optimum yields.


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