Enantio- and diastereoselective synthesis of spiropyrazolones via an organocatalytic [1 + 2 + 3] multicomponent reaction.
Ji, Yan-Ling; Li, He-Ping; Ai, Yue-Yan; Li, Guo; He, Xiang-Hong; Huang, Wei; Huang, Rui-Zhen; Han, Bo; Organic & biomolecular chemistry 17 (2019) 9217–9225; doi:10.1039/c9ob01927h

data_7157123
_publ_section_title
;
 Enantio- and diastereoselective synthesis of spiropyrazolones via an
 organocatalytic [1 + 2 + 3] multicomponent reaction.
;
_journal_issue                   41
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              9217
_journal_page_last               9225
_journal_paper_doi               10.1039/c9ob01927h
_journal_volume                  17
_journal_year                    2019
_chemical_absolute_configuration rm
_chemical_formula_sum            'C28 H21 Cl N4 O'
_chemical_formula_weight         464.94
_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'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2019-07-31 deposited with the CCDC.    2019-09-30 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.5705(5)
_cell_length_b                   11.9923(7)
_cell_length_c                   27.772(2)
_cell_measurement_reflns_used    1881
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      70.3350
_cell_measurement_theta_min      3.9940
_cell_volume                     2521.4(3)
_computing_cell_refinement       'CrysAlisPro 1.171.39.35c (Rigaku OD, 2017)'
_computing_data_collection       'CrysAlisPro 1.171.39.35c (Rigaku OD, 2017)'
_computing_data_reduction        'CrysAlisPro 1.171.39.35c (Rigaku OD, 2017)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXL-2018/3 (Sheldrick, 2018)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Xcalibur, Eos, Gemini'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0302
_diffrn_reflns_av_unetI/netI     0.0509
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            5868
_diffrn_reflns_point_group_measured_fraction_full 0.862
_diffrn_reflns_point_group_measured_fraction_max 0.862
_diffrn_reflns_theta_full        67.244
_diffrn_reflns_theta_max         67.244
_diffrn_reflns_theta_min         3.183
_diffrn_source                   'fine-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    1.549
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.86976
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.225
_exptl_crystal_description       block
_exptl_crystal_F_000             968
_exptl_crystal_size_max          0.130
_exptl_crystal_size_mid          0.120
_exptl_crystal_size_min          0.110
_refine_diff_density_max         0.261
_refine_diff_density_min         -0.227
_refine_diff_density_rms         0.032
_refine_ls_abs_structure_details
;
 Flack x determined using 862 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.06(3)
_refine_ls_extinction_coef       0.0063(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     309
_refine_ls_number_reflns         3882
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0605
_refine_ls_R_factor_gt           0.0481
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0444P)^2^+0.2880P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1120
_refine_ls_wR_factor_ref         0.1235
_reflns_Friedel_coverage         0.501
_reflns_Friedel_fraction_full    0.679
_reflns_Friedel_fraction_max     0.679
_reflns_number_gt                3218
_reflns_number_total             3882
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9ob01927h2.cif
_cod_data_source_block           exp_10382
_cod_depositor_comments
'Adding full bibliography for 7157123--7157124.cif.'
_cod_original_cell_volume        2521.3(3)
_cod_database_code               7157123
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.824
_shelx_estimated_absorpt_t_max   0.848
_shelx_res_checksum              83257