Stereoselectivity Switch in the Trapping of Polar Organometallics with Andersen's Reagent-Access to Highly Stereoenriched Transformable Biphenyls.
Bortoluzzi, Julien; Jha, Vishwajeet; Levitre, Guillaume; Fer, Mickaël J; Berreur, Jordan; Masson, Géraldine; Panossian, Armen; Leroux, Frédéric R; The Journal of organic chemistry 83 (2018) 7751–7761; doi:10.1021/acs.joc.8b00648

data_4035598
_publ_section_title
;
 Stereoselectivity Switch in the Trapping of Polar Organometallics with
 Andersen's Reagent-Access to Highly Stereoenriched Transformable
 Biphenyls.
;
_journal_issue                   15
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              7751
_journal_page_last               7761
_journal_paper_doi               10.1021/acs.joc.8b00648
_journal_volume                  83
_journal_year                    2018
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C19 H14 Br I O S'
_chemical_formula_sum            'C19 H14 Br I O S'
_chemical_formula_weight         497.17
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.7451(2)
_cell_length_b                   14.5492(5)
_cell_length_c                   15.9101(5)
_cell_measurement_reflns_used    6442
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      29.89
_cell_measurement_theta_min      2.80
_cell_volume                     1792.83(10)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-2013 (Sheldrick, 2013)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  triumph
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0198
_diffrn_reflns_av_unetI/netI     0.0434
_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       -7
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            12180
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.988
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.951
_diffrn_reflns_theta_min         1.897
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    4.132
_exptl_absorpt_correction_T_max  0.7460
_exptl_absorpt_correction_T_min  0.6274
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.842
_exptl_crystal_description       prism
_exptl_crystal_F_000             960
_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.240
_exptl_crystal_size_min          0.160
_refine_diff_density_max         0.718
_refine_diff_density_min         -0.544
_refine_diff_density_rms         0.071
_refine_ls_abs_structure_details
;
 Flack x determined using 1834 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons and Flack (2004), Acta Cryst. A60, s61).
;
_refine_ls_abs_structure_Flack   0.017(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.939
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     209
_refine_ls_number_reflns         5146
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.939
_refine_ls_R_factor_all          0.0290
_refine_ls_R_factor_gt           0.0229
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     'w=1/[\s^2^(Fo^2^)] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0445
_refine_ls_wR_factor_ref         0.0459
_reflns_Friedel_coverage         0.743
_reflns_Friedel_fraction_full    0.991
_reflns_Friedel_fraction_max     0.973
_reflns_number_gt                4601
_reflns_number_total             5146
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo8b00648_si_003.cif
_cod_data_source_block           flvj150902
_cod_database_code               4035598
_shelx_estimated_absorpt_t_min   0.370
_shelx_estimated_absorpt_t_max   0.558
_shelxl_version_number           2013-4
_shelx_res_checksum              59823
_shelx_hkl_checksum              12633