Chemo- and regio-selective amidation of indoles with isocyanates using borane Lewis acids
Dasgupta, Ayan; Guerzoni, Michael G.; Alotaibi, Nusaybah; van Ingen, Yara; Farshadfar, Kaveh; Richards, Emma; Ariafard, Alireza; Melen, Rebecca L.; Catalysis Science & Technology 12 (2022) 5982–5990; doi:10.1039/D2CY01441F

data_1567718
_publ_section_title
;
 Chemo- and regio-selective amidation of indoles with isocyanates using
 borane Lewis acids
;
_journal_issue                   19
_journal_name_full               'Catalysis Science &amp; Technology'
_journal_page_first              5982
_journal_page_last               5990
_journal_paper_doi               10.1039/D2CY01441F
_journal_volume                  12
_journal_year                    2022
_chemical_formula_moiety         'C23 H18 Cl N3 O2'
_chemical_formula_sum            'C23 H18 Cl N3 O2'
_chemical_formula_weight         403.85
_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_method           SHELXL-2018/3
_audit_update_record
;
2022-04-20 deposited with the CCDC.	2022-08-18 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.7822(3)
_cell_length_b                   12.3852(6)
_cell_length_c                   27.1093(14)
_cell_measurement_reflns_used    2715
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      72.8330
_cell_measurement_theta_min      3.9040
_cell_volume                     1941.40(17)
_computing_cell_refinement       'CrysAlisPro 1.171.41.112a (Rigaku OD, 2021)'
_computing_data_collection       'CrysAlisPro 1.171.41.112a (Rigaku OD, 2021)'
_computing_data_reduction        'CrysAlisPro 1.171.41.112a (Rigaku OD, 2021)'
_computing_molecular_graphics    'ShelXL, Mercury, ORTEP'
_computing_publication_material  publCIF
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.972
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at home/near, Atlas'
_diffrn_measurement_method       'w/ scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0579
_diffrn_reflns_av_unetI/netI     0.0631
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.972
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            7005
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.962
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         72.942
_diffrn_reflns_theta_min         3.924
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    1.946
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.660
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.41.112a (Rigaku Oxford Diffraction, 2021)
Numerical absorption correction based on gaussian integration over
a multifaceted crystal model
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.382
_exptl_crystal_description       needle
_exptl_crystal_F_000             840
_exptl_crystal_size_max          0.662
_exptl_crystal_size_mid          0.061
_exptl_crystal_size_min          0.043
_refine_diff_density_max         0.424
_refine_diff_density_min         -0.380
_refine_diff_density_rms         0.058
_refine_ls_abs_structure_details
;
 Flack x determined using 970 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.04(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     263
_refine_ls_number_reflns         3727
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.0764
_refine_ls_R_factor_gt           0.0667
_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^)+(0.1039P)^2^+0.0585P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1709
_refine_ls_wR_factor_ref         0.1829
_reflns_Friedel_coverage         0.693
_reflns_Friedel_fraction_full    0.997
_reflns_Friedel_fraction_max     0.947
_reflns_number_gt                3132
_reflns_number_total             3727
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2cy01441f2.cif
_cod_data_source_block           RM2231b_a
_cod_database_code               1567718
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.359
_shelx_estimated_absorpt_t_max   0.921
_shelx_res_checksum              38860
_publcif_funding_html
;
;