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_1567714
_publ_section_title
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 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         'C25 H25 Cl N2 O Si'
_chemical_formula_sum            'C25 H25 Cl N2 O Si'
_chemical_formula_weight         433.01
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2022-03-30 deposited with the CCDC.	2022-08-18 downloaded from the CCDC.
;
_cell_angle_alpha                99.504(5)
_cell_angle_beta                 93.559(5)
_cell_angle_gamma                90.568(5)
_cell_formula_units_Z            4
_cell_length_a                   10.0506(6)
_cell_length_b                   12.4111(9)
_cell_length_c                   19.1784(12)
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_cell_measurement_temperature    200(2)
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_cell_measurement_theta_min      3.9170
_cell_volume                     2354.4(3)
_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    'ORTEP, SHELXL, Mercury'
_computing_publication_material  publCIF
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.970
_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  0.0690
_diffrn_reflns_av_unetI/netI     0.0959
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.970
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            17234
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.970
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         72.796
_diffrn_reflns_theta_min         3.611
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    2.060
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.712
_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    1.222
_exptl_crystal_description       block
_exptl_crystal_F_000             912
_exptl_crystal_size_max          0.175
_exptl_crystal_size_mid          0.133
_exptl_crystal_size_min          0.026
_refine_diff_density_max         0.282
_refine_diff_density_min         -0.410
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.966
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     578
_refine_ls_number_reflns         9111
_refine_ls_number_restraints     30
_refine_ls_restrained_S_all      0.971
_refine_ls_R_factor_all          0.1023
_refine_ls_R_factor_gt           0.0588
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0679P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1384
_refine_ls_wR_factor_ref         0.1677
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5796
_reflns_number_total             9111
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2cy01441f2.cif
_cod_data_source_block           rm2211_a
_cod_database_code               1567714
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.714
_shelx_estimated_absorpt_t_max   0.948
_shelx_res_checksum              14420
_publcif_funding_html
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;