Gold(I)-Catalyzed Highly Enantioselective [4 + 2]-Annulations of Cyclopentadienes with Nitrosoarenes via Nitroso-Povarov versus Oxidative Nitroso-Povarov Reactions
Jadhav, Prakash D.; Chen, Jia-Xuan; Liu, Rai-Shung; ACS Catalysis  (2020) 5840–; doi:10.1021/acscatal.0c01293

data_4517640
_publ_section_title
;
 Gold(I)-Catalyzed Highly Enantioselective [4 + 2]-Annulations of
 Cyclopentadienes with Nitrosoarenes via Nitroso-Povarov versus Oxidative
 Nitroso-Povarov Reactions
;
_journal_name_full               'ACS Catalysis'
_journal_page_first              5840
_journal_paper_doi               10.1021/acscatal.0c01293
_journal_year                    2020
_chemical_absolute_configuration rm
_chemical_formula_sum            'C19 H18 Br N O'
_chemical_formula_weight         356.25
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/6
_cell_angle_alpha                90
_cell_angle_beta                 95.532(2)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   6.6642(4)
_cell_length_b                   7.7286(5)
_cell_length_c                   15.5866(10)
_cell_measurement_reflns_used    3916
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.3642
_cell_measurement_theta_min      2.9446
_cell_volume                     799.05(9)
_computing_cell_refinement       'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_data_collection       'APEX2 (Bruker AXS, 2010)'
_computing_data_reduction        'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0251
_diffrn_reflns_av_unetI/netI     0.0515
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            6972
_diffrn_reflns_point_group_measured_fraction_full 0.977
_diffrn_reflns_point_group_measured_fraction_max 0.975
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.368
_diffrn_reflns_theta_min         2.626
_exptl_absorpt_coefficient_mu    2.574
_exptl_absorpt_correction_T_max  0.7454
_exptl_absorpt_correction_T_min  0.6705
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2014/4 (Bruker AXS Inc.)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.481
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       lump
_exptl_crystal_F_000             364
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.528
_refine_diff_density_min         -0.210
_refine_diff_density_rms         0.055
_refine_ls_abs_structure_details
;
 Flack x determined using 1223 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.026(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.998
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     201
_refine_ls_number_reflns         3189
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.998
_refine_ls_R_factor_all          0.0307
_refine_ls_R_factor_gt           0.0263
_refine_ls_shift/su_max          0.012
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0059P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0529
_refine_ls_wR_factor_ref         0.0540
_reflns_Friedel_coverage         0.810
_reflns_Friedel_fraction_full    0.952
_reflns_Friedel_fraction_max     0.946
_reflns_number_gt                2918
_reflns_number_total             3189
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs0c01293_si_002.cif
_cod_data_source_block           190912lt_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_crystal_density_meas' value 'not measured' was
changed to '?' -- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 
;
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4517640
_shelxl_version_number           2014/6
_shelx_res_checksum              635
_shelx_hkl_checksum              61450