Highly Enantioselective Copper- and Iron-Catalyzed Intramolecular Cyclopropanation of Indoles.
Xu, Huan; Li, Yi-Pan; Cai, Yan; Wang, Guo-Peng; Zhu, Shou-Fei; Zhou, Qi-Lin; Journal of the American Chemical Society 139 (2017) 7697–7700; doi:10.1021/jacs.7b03086

data_4131293
_publ_section_title
;
 Highly Enantioselective Copper- and Iron-Catalyzed Intramolecular
 Cyclopropanation of Indoles.
;
_journal_issue                   23
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              7697
_journal_page_last               7700
_journal_paper_doi               10.1021/jacs.7b03086
_journal_volume                  139
_journal_year                    2017
_chemical_absolute_configuration 'CHOOSE rm ad rmad syn or unk'
_chemical_formula_moiety         'C23 H23 N O4'
_chemical_formula_sum            'C23 H23 N O4'
_chemical_formula_weight         377.42
_space_group_crystal_system      triclinic
_space_group_IT_number           1
_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-2014/7
_cell_angle_alpha                66.363(18)
_cell_angle_beta                 64.94(2)
_cell_angle_gamma                88.20(3)
_cell_formula_units_Z            2
_cell_length_a                   10.286(3)
_cell_length_b                   10.706(2)
_cell_length_c                   11.1417(4)
_cell_measurement_reflns_used    1155
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      59.60
_cell_measurement_theta_min      11.10
_cell_volume                     1003.9(4)
_computing_cell_refinement       'CrystalClear-SM Expert 2.1 b42'
_computing_data_collection       'CrystalClear-SM Expert 2.1 b42 (Rigaku, 2015)'
_computing_data_reduction        'CrystalClear-SM Expert 2.1 b42'
_computing_molecular_graphics    'CrystalStructure 4.1'
_computing_publication_material  'CrystalStructure 4.1 (Rigaku, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SIR2011 (Burla, et al., 2012)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 5.814
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.955
_diffrn_measurement_device_type  'Rigaku XtaLAB P200'
_diffrn_measurement_method       \w
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54187
_diffrn_reflns_av_R_equivalents  0.0269
_diffrn_reflns_av_unetI/netI     0.0195
_diffrn_reflns_Laue_measured_fraction_full 0.982
_diffrn_reflns_Laue_measured_fraction_max 0.955
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            37631
_diffrn_reflns_point_group_measured_fraction_full 0.857
_diffrn_reflns_point_group_measured_fraction_max 0.819
_diffrn_reflns_theta_full        67.687
_diffrn_reflns_theta_max         79.533
_diffrn_reflns_theta_min         4.573
_exptl_absorpt_coefficient_mu    0.692
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  1.000
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.249
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             400
_exptl_crystal_size_max          0.220
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.180
_refine_diff_density_max         0.153
_refine_diff_density_min         -0.118
_refine_diff_density_rms         0.025
_refine_ls_abs_structure_details
; 
 Flack x determined using 2799 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   -0.04(3)
_refine_ls_extinction_coef       0.0111(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.066
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     512
_refine_ls_number_reflns         7157
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0261
_refine_ls_R_factor_gt           0.0247
_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^)+(0.0276P)^2^+0.1032P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0583
_refine_ls_wR_factor_ref         0.0611
_reflns_Friedel_coverage         0.716
_reflns_Friedel_fraction_full    0.732
_reflns_Friedel_fraction_max     0.684
_reflns_number_gt                6895
_reflns_number_total             7157
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            2a-cif.cif
_cod_data_source_block           shelxl
_cod_database_code               4131293
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.863
_shelx_estimated_absorpt_t_max   0.886
_shelx_res_checksum              74686
_shelx_hkl_checksum              16428