Diastereodivergent Synthesis of Chiral α-Aminoketones via a Catalytic O–H Insertion/Barnes–Claisen Rearrangement Reaction
Liu, Yun; Chen, Yushuang; Yihuo, Aying; Zhou, Yuqiao; Liu, Xiaohua; Lin, Lili; Feng, Xiaoming; ACS Catalysis  (2022) 1784–1790; doi:10.1021/acscatal.1c05789

data_4519292
_publ_section_title
;
 Diastereodivergent Synthesis of Chiral \a-Aminoketones via a Catalytic
 O--H Insertion/Barnes--Claisen Rearrangement Reaction
;
_journal_name_full               'ACS Catalysis'
_journal_page_first              1784
_journal_page_last               1790
_journal_paper_doi               10.1021/acscatal.1c05789
_journal_year                    2022
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C20 H21 N O4 S'
_chemical_formula_sum            'C20 H21 N O4 S'
_chemical_formula_weight         371.44
_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   mixed
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.38840(10)
_cell_length_b                   14.8582(3)
_cell_length_c                   23.6108(5)
_cell_measurement_reflns_used    5579
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      68.29
_cell_measurement_theta_min      3.74
_cell_volume                     1890.33(7)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX3'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT (Sheldrick 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.973
_diffrn_measurement_device_type  'Bruker D8 Venture Photon II'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0807
_diffrn_reflns_av_unetI/netI     0.0815
_diffrn_reflns_Laue_measured_fraction_full 0.973
_diffrn_reflns_Laue_measured_fraction_max 0.973
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            8306
_diffrn_reflns_point_group_measured_fraction_full 0.963
_diffrn_reflns_point_group_measured_fraction_max 0.964
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         68.284
_diffrn_reflns_theta_min         3.515
_exptl_absorpt_coefficient_mu    1.729
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.4869
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'SADABS (Krause et al., 2015)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.305
_exptl_crystal_description       rod
_exptl_crystal_F_000             784
_exptl_crystal_size_max          0.634
_exptl_crystal_size_mid          0.050
_exptl_crystal_size_min          0.049
_refine_diff_density_max         0.593
_refine_diff_density_min         -0.440
_refine_diff_density_rms         0.070
_refine_ls_abs_structure_details
; 
 Flack x determined using 1171 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   0.079(12)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.071
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     247
_refine_ls_number_reflns         3341
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0559
_refine_ls_R_factor_gt           0.0473
_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^)+(0.0631P)^2^+0.4374P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1140
_refine_ls_wR_factor_ref         0.1265
_reflns_Friedel_coverage         0.684
_reflns_Friedel_fraction_full    0.950
_reflns_Friedel_fraction_max     0.950
_reflns_number_gt                3093
_reflns_number_total             3341
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs1c05789_si_004.cif
_cod_data_source_block           liy021
_cod_database_code               4519292
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.407
_shelx_estimated_absorpt_t_max   0.920
_shelx_res_checksum              74392
_shelx_hkl_checksum              3279