Organocatalytic atroposelective synthesis of axially chiral <i>N</i>,<i>N</i>'-pyrrolylindoles <i>via de novo</i> indole formation.
Wang, Cong-Shuai; Xiong, Qi; Xu, Hui; Yang, Hao-Ran; Dang, Yanfeng; Dong, Xiu-Qin; Wang, Chun-Jiang; Chemical science 14 (2023) 12091–12097; doi:10.1039/d3sc03686c

data_1570105
_publ_section_title
;
 Organocatalytic atroposelective synthesis of axially chiral
 <i>N</i>,<i>N</i>'-pyrrolylindoles <i>via de novo</i> indole formation.
;
_journal_issue                   43
_journal_name_full               'Chemical science'
_journal_page_first              12091
_journal_page_last               12097
_journal_paper_doi               10.1039/d3sc03686c
_journal_volume                  14
_journal_year                    2023
_chemical_formula_moiety         'C30 H25 N3 O2'
_chemical_formula_sum            'C30 H25 N3 O2'
_chemical_formula_weight         459.53
_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
_audit_creation_date             2023-05-04
_audit_creation_method
;
Olex2 1.2
(compiled 2014.09.19 svn.r3010 for OlexSys, GUI svn.r4874)
;
_audit_update_record
;
2023-07-05 deposited with the CCDC.	2023-10-05 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.3836(2)
_cell_length_b                   17.6933(6)
_cell_length_c                   18.4913(6)
_cell_measurement_reflns_used    9959
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      75.0670
_cell_measurement_theta_min      3.4140
_cell_volume                     2415.71(13)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'Bruker APEX2 area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CCD area detector'
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker SMART APEX2 area detector'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'mirror optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0221
_diffrn_reflns_av_unetI/netI     0.0229
_diffrn_reflns_Laue_measured_fraction_full 0.989
_diffrn_reflns_Laue_measured_fraction_max 0.990
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            12507
_diffrn_reflns_point_group_measured_fraction_full 0.981
_diffrn_reflns_point_group_measured_fraction_max 0.981
_diffrn_reflns_theta_full        66.500
_diffrn_reflns_theta_max         67.487
_diffrn_reflns_theta_min         3.457
_diffrn_source                   'microfocus sealed X-ray tube'
_diffrn_source_type              'Incoatec I\ms'
_exptl_absorpt_coefficient_mu    0.636
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            brown
_exptl_crystal_colour_primary    brown
_exptl_crystal_density_diffrn    1.264
_exptl_crystal_description       block
_exptl_crystal_F_000             968
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.129
_refine_diff_density_min         -0.110
_refine_diff_density_rms         0.024
_refine_ls_abs_structure_details
;
 Flack x determined using 1517 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons and Flack (2004), Acta Cryst. A60, s61).
;
_refine_ls_abs_structure_Flack   -0.04(10)
_refine_ls_extinction_coef       0.0048(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.086
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     320
_refine_ls_number_reflns         4262
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.086
_refine_ls_R_factor_all          0.0360
_refine_ls_R_factor_gt           0.0317
_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^)+(0.0570P)^2^+0.0400P]
 where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0883
_refine_ls_wR_factor_ref         0.0924
_reflns_Friedel_coverage         0.726
_reflns_Friedel_fraction_full    0.970
_reflns_Friedel_fraction_max     0.968
_reflns_number_gt                3854
_reflns_number_total             4262
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3sc03686c2.cif
_cod_data_source_block           wcs-nn
_cod_depositor_comments          'Adding full bibliography for 1570105.cif.'
_cod_database_code               1570105
_shelxl_version_number           2013-2
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All N(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 N3(H3), C2(H2), C9(H9), C10(H10), C11(H11), C12(H12), C14(H14), C18(H18),
 C20(H20), C21(H21), C23(H23), C26(H26), C27(H27), C28(H28), C29(H29), C30(H30)
2.b Idealised Me refined as rotating group:
 C6(H6A,H6B,H6C), C7(H7A,H7B,H7C), C24(H24A,H24B,H24C)
;
_shelx_res_checksum              5030
_olex2_submission_special_instructions 'No special instructions were received'