Catalytic Enantioselective Pyridine N-Oxidation.
Hsieh, Sheng-Ying; Tang, Y. U.; Crotti, Simone; Stone, Elizabeth; Miller, Scott J.; Journal of the American Chemical Society  (2019) –; doi:10.1021/jacs.9b10414

data_4129090
_publ_section_title
;
 Catalytic Enantioselective Pyridine N-Oxidation.
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_paper_doi               10.1021/jacs.9b10414
_journal_year                    2019
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C18 H23 N3 O2'
_chemical_formula_sum            'C18 H23 N3 O2'
_chemical_formula_weight         313.39
_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
_atom_sites_solution_primary     SHELXT
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 116.195(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.2034(2)
_cell_length_b                   21.8162(4)
_cell_length_c                   9.4423(2)
_cell_measurement_reflns_used    39947
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      66.3620
_cell_measurement_theta_min      1.9780
_cell_volume                     1701.15(7)
_computing_cell_refinement       'CrysAlisPro 1.171.39.16b (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.39.16b (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.39.16b (Rigaku OD, 2015)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'CIFTAB-2014/2 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXT-2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      93(2)
_diffrn_detector_area_resol_mean 22.2
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Rigaku Saturn 944+ CCD'
_diffrn_measurement_method       \w
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0338
_diffrn_reflns_av_unetI/netI     0.0133
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            59724
_diffrn_reflns_point_group_measured_fraction_full 0.967
_diffrn_reflns_point_group_measured_fraction_max 0.967
_diffrn_reflns_theta_full        66.923
_diffrn_reflns_theta_max         66.923
_diffrn_reflns_theta_min         4.053
_diffrn_source                   'microfocus rotating anode'
_exptl_absorpt_coefficient_mu    0.649
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.87977
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrysAlisPro 1.171.39.16b (Rigaku Oxford Diffraction, 2015) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.224
_exptl_crystal_description       Block
_exptl_crystal_F_000             672
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.630
_refine_diff_density_min         -0.258
_refine_diff_density_rms         0.054
_refine_ls_abs_structure_details
; 
 Flack x determined using 2654 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   -0.05(5)
_refine_ls_extinction_coef       0.0258(13)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.058
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     434
_refine_ls_number_reflns         5840
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.058
_refine_ls_R_factor_all          0.0406
_refine_ls_R_factor_gt           0.0403
_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^)+(0.0656P)^2^+0.4618P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1034
_refine_ls_wR_factor_ref         0.1037
_reflns_Friedel_coverage         0.888
_reflns_Friedel_fraction_full    0.936
_reflns_Friedel_fraction_max     0.936
_reflns_number_gt                5775
_reflns_number_total             5840
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja9b10414_si_002.cif
_cod_data_source_block           007b-19103
_cod_original_cell_volume        1701.14(7)
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4129090
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.881
_shelx_estimated_absorpt_t_max   0.881
_shelx_res_checksum              28353
_shelx_hkl_checksum              95489