Palladium-catalysed imidoylative spirocyclization of 3-(2-isocyanoethyl)indoles.
Tang, Shi; Ding, Shumin; Li, Dan; Li, Lianjie; Zhao, Haixia; Chai, Minxue; Wang, Jian; Chemical communications (Cambridge, England) 57 (2021) 10576–10579; doi:10.1039/d1cc03240b

data_7129104
_publ_section_title
;
 Palladium-catalysed imidoylative spirocyclization of
 3-(2-isocyanoethyl)indoles.
;
_journal_issue                   81
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              10576
_journal_page_last               10579
_journal_paper_doi               10.1039/d1cc03240b
_journal_volume                  57
_journal_year                    2021
_chemical_formula_sum            'C26 H26 N2 O6'
_chemical_formula_weight         462.49
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2021-08-15 deposited with the CCDC.	2021-09-14 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 93.860(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.4101(2)
_cell_length_b                   11.1055(3)
_cell_length_c                   25.7204(7)
_cell_measurement_reflns_used    9852
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      72.41
_cell_measurement_theta_min      3.44
_cell_volume                     2396.79(11)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0921
_diffrn_reflns_av_unetI/netI     0.0514
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            94132
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         72.502
_diffrn_reflns_theta_min         3.444
_exptl_absorpt_coefficient_mu    0.755
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.282
_exptl_crystal_description       needle
_exptl_crystal_F_000             976
_exptl_crystal_size_max          0.120
_exptl_crystal_size_mid          0.110
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.387
_refine_diff_density_min         -0.342
_refine_diff_density_rms         0.058
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     311
_refine_ls_number_reflns         4756
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0844
_refine_ls_R_factor_gt           0.0723
_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^)+(0.1220P)^2^+0.9010P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2024
_refine_ls_wR_factor_ref         0.2179
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3775
_reflns_number_total             4756
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1cc03240b2.cif
_cod_data_source_block           20210815a
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7129104
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.915
_shelx_estimated_absorpt_t_max   0.928
_shelx_res_checksum              62510