Binaphthol-Derived Bisphosphoric Acids Serve as Efficient Organocatalysts for Highly Enantioselective 1,3-Dipolar Cycloaddition of Azomethine Ylides to Electron-Deficient Olefins
Long He; Xiao-Hua Chen; De-Nan Wang; Shi-Wei Luo; Wen-Quan Zhang; Jie Yu; Lei Ren; Liu-Zhu Gong; Journal of the American Chemical Society 133 (2011) 13504–13518; doi:10.1021/ja204218h

data_4106661
_publ_section_title
;
 Binaphthol-Derived Bisphosphoric Acids Serve as Efficient Organocatalysts
 for Highly Enantioselective 1,3-Dipolar Cycloaddition of Azomethine
 Ylides to Electron-Deficient Olefins
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              13504
_journal_page_last               13518
_journal_paper_doi               10.1021/ja204218h
_journal_volume                  133
_journal_year                    2011
_chemical_absolute_configuration ad
_chemical_formula_sum            'C18 H22 Cl N O5'
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_symmetry_space_group_name_Hall  'P 2yb'
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_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
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_cell_angle_beta                 110.988(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
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_cell_length_b                   5.5879(3)
_cell_length_c                   14.6076(6)
_cell_measurement_reflns_used    4514
_cell_measurement_temperature    291(2)
_cell_measurement_theta_max      67.5788
_cell_measurement_theta_min      3.2312
_cell_volume                     965.77(9)
_computing_cell_refinement       'CrysAlisPro (Oxford Diffraction Ltd.)'
_computing_data_collection       'CrysAlisPro (Oxford Diffraction Ltd.)'
_computing_data_reduction        'CrysAlisPro (Oxford Diffraction Ltd.)'
_computing_molecular_graphics    'Ortep-3 (L. J. Farrugia, 2001)'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      291(2)
_diffrn_detector_area_resol_mean 15.9149
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Gemini S Ultra, Oxford Diffraction'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_source         'Enhance Ultra (Cu) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0190
_diffrn_reflns_av_sigmaI/netI    0.0208
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            7066
_diffrn_reflns_theta_full        67.41
_diffrn_reflns_theta_max         67.41
_diffrn_reflns_theta_min         3.24
_exptl_absorpt_coefficient_mu    1.981
_exptl_absorpt_correction_T_max  0.6927
_exptl_absorpt_correction_T_min  0.5357
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.52 (release 06-11-2009 CrysAlis171 .NET)
(compiled Nov  6 2009,16:24:50)
empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.265
_exptl_crystal_description       needle
_exptl_crystal_F_000             388
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.206
_refine_diff_density_min         -0.438
_refine_diff_density_rms         0.039
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.04(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.012
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     233
_refine_ls_number_reflns         3279
_refine_ls_number_restraints     22
_refine_ls_restrained_S_all      1.131
_refine_ls_R_factor_all          0.0550
_refine_ls_R_factor_gt           0.0471
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0207P)^2^+0.7401P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0984
_refine_ls_wR_factor_ref         0.1047
_reflns_number_gt                2865
_reflns_number_total             3279
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja204218h_si_004.cif
_cod_data_source_block           091130
_cod_original_cell_volume        965.77(8)
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4106661