Multiple Absolute Stereocontrol in Cascade Lactone Formation via Dynamic Kinetic Resolution Driven by the Asymmetric Transfer Hydrogenation of Keto Acids with Oxo-Tethered Ruthenium Catalysts.
Touge, Taichiro; Sakaguchi, Kazuhiko; Tamaki, Nao; Nara, Hideki; Yokozawa, Tohru; Matsumura, Kazuhiko; Kayaki, Yoshihito; Journal of the American Chemical Society 141 (2019) 16354–16361; doi:10.1021/jacs.9b07297

data_4127678
_publ_section_title
;
 Multiple Absolute Stereocontrol in Cascade Lactone Formation via Dynamic
 Kinetic Resolution Driven by the Asymmetric Transfer Hydrogenation of
 Keto Acids with Oxo-Tethered Ruthenium Catalysts.
;
_journal_issue                   41
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              16354
_journal_page_last               16361
_journal_paper_doi               10.1021/jacs.9b07297
_journal_volume                  141
_journal_year                    2019
_chemical_absolute_configuration 'CHOOSE rm ad rmad syn or unk'
_chemical_formula_moiety         'C18 H15 Br O2'
_chemical_formula_sum            'C18 H15 Br O2'
_chemical_formula_weight         343.22
_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'
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.0000
_cell_angle_beta                 101.619(4)
_cell_angle_gamma                90.0000
_cell_formula_units_Z            2
_cell_length_a                   8.342(3)
_cell_length_b                   8.299(3)
_cell_length_c                   10.721(4)
_cell_measurement_reflns_used    2813
_cell_measurement_temperature    93
_cell_measurement_theta_max      27.49
_cell_measurement_theta_min      3.13
_cell_volume                     727.0(5)
_computing_cell_refinement       CrystalClear
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        CrystalClear
_computing_molecular_graphics    'CrystalStructure 4.2.5'
_computing_publication_material  'CrystalStructure 4.2.5 (Rigaku, 2017)'
_computing_structure_refinement  'SHELXL Version 2014/7 (Sheldrick, 2008)'
_computing_structure_solution    'SIR92 (Altomare, et al., 1994)'
_diffrn_ambient_temperature      93
_diffrn_detector_area_resol_mean 7.111
_diffrn_measured_fraction_theta_full 0.948
_diffrn_measured_fraction_theta_max 0.956
_diffrn_measurement_device_type  'Rigaku Saturn724'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0386
_diffrn_reflns_Laue_measured_fraction_full 0.948
_diffrn_reflns_Laue_measured_fraction_max 0.956
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            4698
_diffrn_reflns_point_group_measured_fraction_full 0.887
_diffrn_reflns_point_group_measured_fraction_max 0.900
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.489
_diffrn_reflns_theta_min         3.129
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.836
_exptl_absorpt_correction_T_max  0.797
_exptl_absorpt_correction_T_min  0.688
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB (Rigaku, 1998)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.568
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             348.00
_exptl_crystal_size_max          0.250
_exptl_crystal_size_mid          0.160
_exptl_crystal_size_min          0.080
_refine_diff_density_max         1.53
_refine_diff_density_min         -0.58
_refine_ls_abs_structure_details
;
 Flack x determined using 1208 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.047(14)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     190
_refine_ls_number_reflns         2994
_refine_ls_number_restraints     1
_refine_ls_R_factor_all          0.0393
_refine_ls_R_factor_gt           0.0386
_refine_ls_shift/su_max          0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0819P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0958
_refine_ls_wR_factor_ref         0.0963
_reflns_Friedel_coverage         0.761
_reflns_Friedel_fraction_full    0.815
_reflns_Friedel_fraction_max     0.835
_reflns_number_gt                2891
_reflns_number_total             2994
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            ja9b07297_si_006.cif
_cod_data_source_block           58D-Br-Ph
_cod_original_cell_volume        727.0(4)
_cod_database_code               4127678
_shelx_res_checksum              27831
_shelx_hkl_checksum              25828