Pyridinium 1,1'-Binaphthyl-2,2'-disulfonates as Highly Effective Chiral Brønsted Acid-Base Combined Salt Catalysts for Enantioselective Mannich-Type Reaction
Manabu Hatano; Toshikatsu Maki; Katsuhiko Moriyama; Manabu Arinobe; Kazuaki Ishihara; Journal of the American Chemical Society 130 (2008) 16858–16860; doi:10.1021/ja806875c

data_4108829
_publ_section_title
;
 Pyridinium 1,1'-Binaphthyl-2,2'-disulfonates as Highly Effective Chiral
 Br\/onsted Acid-Base Combined Salt Catalysts for Enantioselective
 Mannich-Type Reaction
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              16858
_journal_page_last               16860
_journal_paper_doi               10.1021/ja806875c
_journal_volume                  130
_journal_year                    2008
_chemical_formula_sum            'C77 H57 K3 N4 O23 S6'
_chemical_formula_weight         1715.93
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.3241(17)
_cell_length_b                   20.604(3)
_cell_length_c                   35.073(6)
_cell_measurement_temperature    223(2)
_cell_volume                     8183(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0360
_diffrn_reflns_av_sigmaI/netI    0.0476
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       46
_diffrn_reflns_limit_l_min       -36
_diffrn_reflns_number            59541
_diffrn_reflns_theta_full        28.34
_diffrn_reflns_theta_max         28.34
_diffrn_reflns_theta_min         1.52
_exptl_absorpt_coefficient_mu    0.395
_exptl_absorpt_correction_T_max  0.9251
_exptl_absorpt_correction_T_min  0.8579
_exptl_crystal_density_diffrn    1.393
_exptl_crystal_F_000             3536
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.765
_refine_diff_density_min         -1.451
_refine_diff_density_rms         0.139
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.18(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.071
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1046
_refine_ls_number_reflns         20310
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.071
_refine_ls_R_factor_all          0.0979
_refine_ls_R_factor_gt           0.0753
_refine_ls_shift/su_max          0.107
_refine_ls_shift/su_mean         0.012
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1693P)^2^+1.2392P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2221
_refine_ls_wR_factor_ref         0.2439
_reflns_number_gt                15642
_reflns_number_total             20310
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja806875c_si_002.cif
_cod_data_source_block           tmsae1
_cod_database_code               4108829