Diastereoselective α-Fluorination of N- tert-Butanesulfinyl Imidates.
Huang, Wei; Yao, Yun; Xu, Yan-Jun; Lu, Chong-Dao; The Journal of organic chemistry 83 (2018) 14777–14785; doi:10.1021/acs.joc.8b02375

data_4035690
_publ_section_title
;
 Diastereoselective \a-Fluorination of N- tert-Butanesulfinyl Imidates.
;
_journal_issue                   23
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              14777
_journal_page_last               14785
_journal_paper_doi               10.1021/acs.joc.8b02375
_journal_volume                  83
_journal_year                    2018
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C12 H16 F N O2 S'
_chemical_formula_sum            'C12 H16 F N O2 S'
_chemical_formula_weight         257.32
_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     dual
_audit_creation_date             2018-05-14
_audit_creation_method
;
Olex2 1.2
(compiled 2018.04.26 svn.r3504 for OlexSys, GUI svn.r5492)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.3373(7)
_cell_length_b                   10.0709(8)
_cell_length_c                   17.0758(16)
_cell_measurement_reflns_used    3897
_cell_measurement_temperature    100.01(10)
_cell_measurement_theta_max      28.2370
_cell_measurement_theta_min      2.3420
_cell_volume                     1261.8(2)
_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 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      100.01(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 5.2684
_diffrn_detector_type            AtlasS2
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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    -59.00  34.00   1.00    1.00    --   11.74 -57.00-120.00   93
  2  \w    -15.00  75.00   1.00    1.00    --   11.74  77.00 150.00   90
  3  \w    -16.00  79.00   1.00    1.00    --   11.74  57.00  30.00   95
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, AtlasS2'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.0658517000
_diffrn_orient_matrix_UB_12      0.0492488000
_diffrn_orient_matrix_UB_13      0.0090406000
_diffrn_orient_matrix_UB_21      0.0003241000
_diffrn_orient_matrix_UB_22      -0.0211091000
_diffrn_orient_matrix_UB_23      0.0396538000
_diffrn_orient_matrix_UB_31      0.0706279000
_diffrn_orient_matrix_UB_32      -0.0457486000
_diffrn_orient_matrix_UB_33      -0.0085881000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0427
_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       6
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            8072
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        24.996
_diffrn_reflns_theta_max         24.996
_diffrn_reflns_theta_min         2.348
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.259
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.80219
_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            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.355
_exptl_crystal_description       block
_exptl_crystal_F_000             544
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.316
_refine_diff_density_min         -0.263
_refine_diff_density_rms         0.049
_refine_ls_abs_structure_details
;
 Flack x determined using 774 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.14(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.013
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     157
_refine_ls_number_reflns         2216
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.013
_refine_ls_R_factor_all          0.0399
_refine_ls_R_factor_gt           0.0363
_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^)+(0.0376P)^2^+0.3752P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0783
_refine_ls_wR_factor_ref         0.0803
_reflns_Friedel_coverage         0.699
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                2055
_reflns_number_total             2216
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo8b02375_si_002.cif
_cod_data_source_block           4
_cod_database_code               4035690
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.972
_shelx_estimated_absorpt_t_min   0.967
_reflns_odcompleteness_completeness 99.93
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.32
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All N(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C7(H7)
2.b Aromatic/amide H refined with riding coordinates:
 N1(H1), C2(H2), C3(H3), C6(H6), C5(H5), C4(H4)
2.c Idealised Me refined as rotating group:
 C10(H10A,H10B,H10C), C11(H11A,H11B,H11C), C12(H12A,H12B,H12C)
;
_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
- Detector area scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.393
_oxdiff_exptl_absorpt_empirical_full_min 0.799