Ammonium Salt-Catalyzed Highly Practical Ortho-Selective Monohalogenation and Phenylselenation of Phenols: Scope and Applications
Xiong, Xiaodong; Yeung, Ying-Yeung; ACS Catalysis 8 (2018) 4033–; doi:10.1021/acscatal.8b00327

data_4515622
_publ_section_title
;
 Ammonium Salt-Catalyzed Highly Practical Ortho-Selective Monohalogenation
 and Phenylselenation of Phenols: Scope and Applications
;
_journal_issue                   5
_journal_name_full               'ACS Catalysis'
_journal_page_first              4033
_journal_paper_doi               10.1021/acscatal.8b00327
_journal_volume                  8
_journal_year                    2018
_chemical_formula_sum            'C6 H4 Br Cl O'
_chemical_formula_weight         207.45
_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
_audit_creation_method           SHELXL-2014/6
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.2204(12)
_cell_length_b                   11.214(3)
_cell_length_c                   11.717(3)
_cell_measurement_reflns_used    143
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      15
_cell_measurement_theta_min      15
_cell_volume                     685.9(3)
_computing_cell_refinement       'BRUKER KAPPA APEXII DUO DIFFRACTOMETER'
_computing_data_collection       'BRUKER KAPPA APEXII DUO DIFFRACTOMETER'
_computing_data_reduction        'BRUKER KAPPA APEXII DUO DIFFRACTOMETER'
_computing_molecular_graphics    'BRUKER SHELXTL'
_computing_publication_material  'BRUKER SHELXTL'
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'BRUKER KAPPA APEXII DUO DIFFRACTOMETER'
_diffrn_measurement_method       'PHI & OMEGA SCAN'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0498
_diffrn_reflns_av_unetI/netI     0.0426
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            5837
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.247
_diffrn_reflns_theta_min         2.514
_exptl_absorpt_coefficient_mu    6.288
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.5098
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.009
_exptl_crystal_description       block
_exptl_crystal_F_000             400
_exptl_crystal_size_max          0.400
_exptl_crystal_size_mid          0.300
_exptl_crystal_size_min          0.200
_refine_diff_density_max         1.247
_refine_diff_density_min         -0.902
_refine_diff_density_rms         0.202
_refine_ls_abs_structure_details
;
 Flack x determined using 394 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.149(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.149
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     82
_refine_ls_number_reflns         1239
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.149
_refine_ls_R_factor_all          0.0641
_refine_ls_R_factor_gt           0.0545
_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^)+(0.1101P)^2^+1.7595P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1707
_refine_ls_wR_factor_ref         0.1833
_reflns_Friedel_coverage         0.641
_reflns_Friedel_fraction_full    0.998
_reflns_Friedel_fraction_max     0.998
_reflns_number_gt                1081
_reflns_number_total             1239
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs8b00327_si_005.cif
_cod_data_source_block           XXD226
_cod_database_code               4515622
_shelx_estimated_absorpt_t_min   0.188
_shelx_estimated_absorpt_t_max   0.366
_shelxl_version_number           2014/6
_shelx_res_checksum              86297
_shelx_hkl_checksum              4805