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_1567715
_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         'C13 H26 N2 O'
_chemical_formula_sum            'C13 H26 N2 O'
_chemical_formula_weight         226.36
_chemical_name_systematic        3-cyclohexyl-1,1-dipropylurea
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   mixed
_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                90
_cell_angle_beta                 91.771(2)
_cell_angle_gamma                90
_cell_formula_units_Z            16
_cell_length_a                   16.5207(4)
_cell_length_b                   9.9632(2)
_cell_length_c                   34.8180(9)
_cell_measurement_reflns_used    4923
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      72.7030
_cell_measurement_theta_min      5.0560
_cell_volume                     5728.3(2)
_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    'shelxle, 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      293(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.964
_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  0.0166
_diffrn_reflns_av_unetI/netI     0.0184
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.964
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       40
_diffrn_reflns_limit_l_min       -42
_diffrn_reflns_number            10376
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.964
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         72.724
_diffrn_reflns_theta_min         5.083
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    0.513
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.615
_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    1.050
_exptl_crystal_description       plate
_exptl_crystal_F_000             2016
_exptl_crystal_size_max          0.589
_exptl_crystal_size_mid          0.111
_exptl_crystal_size_min          0.046
_refine_diff_density_max         0.159
_refine_diff_density_min         -0.174
_refine_diff_density_rms         0.034
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     319
_refine_ls_number_reflns         5488
_refine_ls_number_restraints     13
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0721
_refine_ls_R_factor_gt           0.0559
_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^)+(0.0840P)^2^+2.3026P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1568
_refine_ls_wR_factor_ref         0.1717
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4141
_reflns_number_total             5488
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2cy01441f2.cif
_cod_data_source_block           RM2201_a
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               1567715
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.752
_shelx_estimated_absorpt_t_max   0.977
_shelx_res_checksum              58440
_publcif_funding_html
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