Chelation-assisted and steric-controlled selectivity in the Pd-catalyzed C-H/C-H oxidative coupling of indoles.
Vijaykumar, Muniyappa; Pradhan, Chandini; Gonnade, Rajesh G.; Punji, Benudhar; Chemical communications (Cambridge, England) 60 (2024) 13028–13031; doi:10.1039/d4cc03835e

data_7133857
_publ_section_title
;
 Chelation-assisted and steric-controlled selectivity in the Pd-catalyzed
 C-H/C-H oxidative coupling of indoles.
;
_journal_issue                   89
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              13028
_journal_page_last               13031
_journal_paper_doi               10.1039/d4cc03835e
_journal_volume                  60
_journal_year                    2024
_chemical_formula_moiety         'C28 H18 N4 O2'
_chemical_formula_sum            'C28 H18 N4 O2'
_chemical_formula_weight         442.46
_space_group_crystal_system      orthorhombic
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   'difference Fourier'
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2024-06-26 deposited with the CCDC.	2024-10-15 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   17.8407(10)
_cell_length_b                   8.7838(5)
_cell_length_c                   13.7388(8)
_cell_measurement_reflns_used    9753
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      31.19
_cell_measurement_theta_min      2.58
_cell_volume                     2153.0(2)
_computing_cell_refinement       'SAINT (Bruker, 2016)'
_computing_data_collection       'APEX3 (Bruker, 2016)'
_computing_data_reduction        'SAINT (Bruker, 2016)'
_computing_molecular_graphics    'Bruker SHELXTL, Mercury 2020.20'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'Photon II CPAD Area Detector'
_diffrn_detector_area_resol_mean 7.39
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.897
_diffrn_measurement_device       '\k-geometry diffractometer'
_diffrn_measurement_device_type  'Bruker D8 VENTURE Kappa Duo PHOTON II CPAD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'multilayer mirrors'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0484
_diffrn_reflns_av_unetI/netI     0.0323
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.897
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            43471
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.855
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         31.341
_diffrn_reflns_theta_min         2.585
_diffrn_source                   'micro-focus sealed tube'
_diffrn_source_type              'Incoatech I\mS HB'
_exptl_absorpt_coefficient_mu    0.089
_exptl_absorpt_correction_T_max  0.7462
_exptl_absorpt_correction_T_min  0.6271
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 SADABS 2016/2: Krause, L., Herbst-Irmer, R., Sheldrick G.M. & Stalke D.,
 J. Appl. Cryst. 48 (2015) 3-10
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.365
_exptl_crystal_description       needle
_exptl_crystal_F_000             920
_exptl_crystal_size_max          0.140
_exptl_crystal_size_mid          0.110
_exptl_crystal_size_min          0.070
_refine_diff_density_max         0.310
_refine_diff_density_min         -0.213
_refine_diff_density_rms         0.046
_refine_ls_abs_structure_details
;
 Flack x determined using 2427 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.0(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     307
_refine_ls_number_reflns         6034
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0450
_refine_ls_R_factor_gt           0.0402
_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^)+(0.0574P)^2^+0.4835P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0980
_refine_ls_wR_factor_ref         0.1018
_reflns_Friedel_coverage         0.838
_reflns_Friedel_fraction_full    0.995
_reflns_Friedel_fraction_max     0.810
_reflns_number_gt                5640
_reflns_number_total             6034
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4cc03835e2.cif
_cod_data_source_block           comp_7
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_atom_sites_solution_primary' value 'direct method' was
changed to 'direct'.

Automatic conversion script
Id: cif_fix_values 8170 2020-07-09 18:12:32Z antanas 

 Adding full bibliography for 7133856--7133864.cif.
;
_cod_database_code               7133857
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.988
_shelx_estimated_absorpt_t_max   0.994
_shelx_res_checksum              38984
_shelx_hkl_checksum              47608