Stereodivergent Synthesis of 3-Aminooxindole Derivatives Containing Vicinal Tetrasubstituted Stereocenters via the Mannich Reaction.
Sivamuthuraman, Koilpitchai; Kesavan, Venkitasamy; The Journal of organic chemistry 83 (2018) 8936–8952; doi:10.1021/acs.joc.8b01020

data_4035313
_publ_section_title
;
 Stereodivergent Synthesis of 3-Aminooxindole Derivatives Containing
 Vicinal Tetrasubstituted Stereocenters via the Mannich Reaction.
;
_journal_issue                   16
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              8936
_journal_page_last               8952
_journal_paper_doi               10.1021/acs.joc.8b01020
_journal_volume                  83
_journal_year                    2018
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C24 H22 Cl2 N2 O7'
_chemical_formula_sum            'C24 H22 Cl2 N2 O7'
_chemical_formula_weight         521.33
_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   mixed
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.6425(10)
_cell_length_b                   12.1438(14)
_cell_length_c                   20.772(2)
_cell_measurement_reflns_used    5333
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      21.32
_cell_measurement_theta_min      2.32
_cell_volume                     2432.3(4)
_computing_cell_refinement       'APEX2/SAINT (Bruker, 2004)'
_computing_data_collection       'APEX2 (Bruker, 2004)'
_computing_data_reduction        'SAINT/XPREP (Bruker, 2004)'
_computing_molecular_graphics
'ORTEP3 (Farrugia, 1997) and Mercury (Bruno et al., 2002)'
_computing_publication_material  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SIR92 (Altornare et al., 1993)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker axs kappa apex2 CCD Diffractometer'
_diffrn_measurement_method       '\w and \f scan'
_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  0.0954
_diffrn_reflns_av_unetI/netI     0.0745
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            33583
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        24.995
_diffrn_reflns_theta_max         24.995
_diffrn_reflns_theta_min         1.961
_exptl_absorpt_coefficient_mu    0.314
_exptl_absorpt_correction_T_max  0.975
_exptl_absorpt_correction_T_min  0.918
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2004)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.424
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             1080
_exptl_crystal_size_max          0.250
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.202
_refine_diff_density_min         -0.194
_refine_diff_density_rms         0.045
_refine_ls_abs_structure_details
;
 Flack x determined using 818 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.12(3)
_refine_ls_extinction_coef       0.0040(13)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   0.992
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     321
_refine_ls_number_reflns         4285
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.992
_refine_ls_R_factor_all          0.1162
_refine_ls_R_factor_gt           0.0449
_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^)+(0.0614P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0990
_refine_ls_wR_factor_ref         0.1287
_reflns_Friedel_coverage         0.751
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                2388
_reflns_number_total             4285
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo8b01020_si_002.cif
_cod_data_source_block           SMR1
_cod_original_cell_volume        2432.4(5)
_cod_database_code               4035313
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.926
_shelx_estimated_absorpt_t_max   0.940
_shelx_res_checksum              16554
_shelx_hkl_checksum              32906