The organocatalytic enantiodivergent fluorination of β-ketodiaryl-phosphine oxides for the construction of carbon-fluorine quaternary stereocenters.
Xie, Shaolei; He, Zhi-Juan; Zhang, Ling-Hui; Huang, Bo-Lun; Chen, Xiao-Wei; Zhan, Zong-Song; Zhang, Fu-Min; Chemical communications (Cambridge, England) 57 (2021) 2069–2072; doi:10.1039/d0cc07770d

data_7127791
_publ_section_title
;
 The organocatalytic enantiodivergent fluorination of
 \b-ketodiaryl-phosphine oxides for the construction of carbon-fluorine
 quaternary stereocenters.
;
_journal_issue                   16
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              2069
_journal_page_last               2072
_journal_paper_doi               10.1039/d0cc07770d
_journal_volume                  57
_journal_year                    2021
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C26 H19 Br F O2 P'
_chemical_formula_sum            'C26 H19 Br F O2 P'
_chemical_formula_weight         493.29
_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
_audit_creation_date             2020-09-30
_audit_creation_method
;
Olex2 1.3
(compiled 2020.07.31 svn.rc2a77460 for OlexSys, GUI svn.r6145)
;
_audit_update_record
;
2020-09-30 deposited with the CCDC.	2020-12-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.2073(3)
_cell_length_b                   17.5063(6)
_cell_length_c                   19.9264(9)
_cell_measurement_reflns_used    1814
_cell_measurement_temperature    293.44(10)
_cell_measurement_theta_max      68.9330
_cell_measurement_theta_min      5.0310
_cell_volume                     2165.34(16)
_computing_cell_refinement       'CrysAlisPro 1.171.38.43f (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.43f (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.43f (Rigaku OD, 2015)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXS  (Sheldrick, 2008)'
_diffrn_ambient_environment      air
_diffrn_ambient_temperature      293.44(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 16.0733
_diffrn_detector_type            Eos
_diffrn_measured_fraction_theta_full 0.974
_diffrn_measured_fraction_theta_max 0.974
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w     31.00  58.00   1.00    1.00    --    0.00  57.00 120.00   27
  2  \w     33.00 123.00   1.00    2.00    --   54.00  57.00 -30.00   90
  3  \w    136.00 174.00   1.00    3.00    --  108.00  38.00 -30.00   38
  4  \w    118.00 144.00   1.00    3.00    --  108.00 107.00  62.00   26
  5  \w    118.00 144.00   1.00    3.00    --  108.00 111.00 120.00   26
  6  \w     39.00 130.00   1.00    3.00    --  108.00 -50.00 150.00   91
  7  \w     41.00  97.00   1.00    3.00    --  108.00-111.00 120.00   56
  8  \w     40.00 129.00   1.00    3.00    --  108.00 -63.00 -90.00   89
  9  \w     47.00 104.00   1.00    2.00    --   54.00-125.00-120.00   57
 10  \w     66.00  93.00   1.00    2.00    --   54.00  57.00-180.00   27
 11  \w    -66.00 -14.00   1.00    1.00    --    0.00 -57.00 150.00   52
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.0389473000
_diffrn_orient_matrix_UB_12      0.0832283000
_diffrn_orient_matrix_UB_13      -0.0220141000
_diffrn_orient_matrix_UB_21      0.0794462000
_diffrn_orient_matrix_UB_22      0.0196862000
_diffrn_orient_matrix_UB_23      0.0712082000
_diffrn_orient_matrix_UB_31      0.2318256000
_diffrn_orient_matrix_UB_32      -0.0206600000
_diffrn_orient_matrix_UB_33      -0.0206757000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0247
_diffrn_reflns_av_unetI/netI     0.0444
_diffrn_reflns_Laue_measured_fraction_full 0.974
_diffrn_reflns_Laue_measured_fraction_max 0.974
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -3
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            5000
_diffrn_reflns_point_group_measured_fraction_full 0.829
_diffrn_reflns_point_group_measured_fraction_max 0.829
_diffrn_reflns_theta_full        66.556
_diffrn_reflns_theta_max         66.556
_diffrn_reflns_theta_min         4.438
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    3.535
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.79802
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.43f (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.513
_exptl_crystal_description       block
_exptl_crystal_F_000             1000
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.218
_refine_diff_density_min         -0.384
_refine_diff_density_rms         0.046
_refine_ls_abs_structure_details
;
 Flack x determined using 731 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.044(14)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.991
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     280
_refine_ls_number_reflns         3181
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.991
_refine_ls_R_factor_all          0.0432
_refine_ls_R_factor_gt           0.0323
_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^)+(0.0305P)^2^+0.0956P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0686
_refine_ls_wR_factor_ref         0.0778
_reflns_Friedel_coverage         0.465
_reflns_Friedel_fraction_full    0.628
_reflns_Friedel_fraction_max     0.628
_reflns_number_gt                2650
_reflns_number_total             3181
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0cc07770d2.cif
_cod_data_source_block           xieshl_284-8
_cod_depositor_comments
'Adding full bibliography for 7127787--7127794.cif.'
_cod_original_cell_volume        2165.31(16)
_cod_database_code               7127791
_shelx_shelxl_version_number     2018/3
_reflns_odcompleteness_completeness 97.62
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     66.97
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C4(H4), C5(H5), C7(H7), C8(H8), C10(H10), C11(H11), C12(H12), C13(H13),
 C14(H14), C16(H16), C17(H17), C18(H18), C19(H19), C20(H20), C22(H22), C23(H23),
  C24(H24), C25(H25), C26(H26)
;
_shelx_res_checksum              61138
_olex2_date_sample_data_collection 2020-09-25
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.585
_oxdiff_exptl_absorpt_empirical_full_min 0.802