Development of Chiral Ureates as Chiral Strong Brønsted Base Catalysts.
Kondoh, Azusa; Ishikawa, Sho; Terada, Masahiro; Journal of the American Chemical Society 142 (2020) 3724–3728; doi:10.1021/jacs.9b13922

data_4134195
_publ_section_title
;
 Development of Chiral Ureates as Chiral Strong Br\/onsted Base Catalysts.
;
_journal_issue                   8
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              3724
_journal_page_last               3728
_journal_paper_doi               10.1021/jacs.9b13922
_journal_volume                  142
_journal_year                    2020
_chemical_absolute_configuration 'CHOOSE rm ad rmad syn or unk'
_chemical_formula_moiety         'C27 H30 N2 O3 S'
_chemical_formula_sum            'C27 H30 N2 O3 S'
_chemical_formula_weight         462.61
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.0000
_cell_angle_beta                 90.0000
_cell_angle_gamma                90.0000
_cell_formula_units_Z            4
_cell_length_a                   8.6108(9)
_cell_length_b                   16.6846(17)
_cell_length_c                   17.8727(19)
_cell_measurement_reflns_used    25524
_cell_measurement_temperature    150
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      3.30
_cell_volume                     2567.7(5)
_computing_cell_refinement       'CrystalClear-SM Auto 2.0 r15'
_computing_data_collection       'CrystalClear-SM Auto 2.0 r15 (Rigaku, 2011)'
_computing_data_reduction        'CrystalClear-SM Auto 2.0 r15'
_computing_molecular_graphics    'CrystalStructure 4.3'
_computing_publication_material  'CrystalStructure 4.3 (Rigaku, 2019)'
_computing_structure_refinement  'SHELXL Version 2013/4 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150
_diffrn_detector_area_resol_mean 13.653
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku XtaLAB mini'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0385
_diffrn_reflns_av_unetI/netI     0.0293
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            27261
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.482
_diffrn_reflns_theta_min         3.286
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.155
_exptl_absorpt_correction_T_max  0.977
_exptl_absorpt_correction_T_min  0.823
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB (Rigaku, 1998)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.197
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             984.00
_exptl_crystal_size_max          0.250
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.150
_refine_diff_density_max         0.13
_refine_diff_density_min         -0.21
_refine_ls_abs_structure_details
;
 Flack x determined using 2149 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.98(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     298
_refine_ls_number_reflns         5880
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0449
_refine_ls_R_factor_gt           0.0388
_refine_ls_shift/su_max          0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0430P)^2^+0.3424P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0886
_refine_ls_wR_factor_ref         0.0914
_reflns_Friedel_coverage         0.773
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                5306
_reflns_number_total             5880
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            ja9b13922_si_004.cif
_cod_data_source_block           01
_cod_depositor_comments
'Adding full bibliography for 4134194--4134196.cif.'
_cod_database_code               4134195
_shelxl_version_number           2013-4
_shelx_res_checksum              76414
_shelx_hkl_checksum              10887