Enantioselective Palladium-Catalyzed Intramolecular α-Arylative Desymmetrization of 1,3-Diketones.
Zhu, Chendan; Wang, Dingyi; Zhao, Yue; Sun, Wei-Yin; Shi, Zhuangzhi; Journal of the American Chemical Society  (2017) –; doi:10.1021/jacs.7b10365

data_4126732
_publ_section_title
;
 Enantioselective Palladium-Catalyzed Intramolecular \a-Arylative
 Desymmetrization of 1,3-Diketones.
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_paper_doi               10.1021/jacs.7b10365
_journal_year                    2017
_chemical_absolute_configuration ad
_chemical_formula_sum            'C20 H18 O2'
_chemical_formula_weight         290.34
_space_group_crystal_system      trigonal
_space_group_IT_number           145
_space_group_name_Hall           'P 32'
_space_group_name_H-M_alt        'P 32'
_symmetry_space_group_name_Hall  'P 32'
_symmetry_space_group_name_H-M   'P 32'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            3
_cell_length_a                   8.9278(2)
_cell_length_b                   8.9278(2)
_cell_length_c                   16.4399(5)
_cell_measurement_reflns_used    3174
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      68.31
_cell_measurement_theta_min      5.72
_cell_volume                     1134.80(5)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014 (Sheldrick 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0151
_diffrn_reflns_av_unetI/netI     0.0212
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.998
_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       19
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            3498
_diffrn_reflns_point_group_measured_fraction_full 0.779
_diffrn_reflns_point_group_measured_fraction_max 0.779
_diffrn_reflns_theta_full        64.935
_diffrn_reflns_theta_max         64.935
_diffrn_reflns_theta_min         5.722
_exptl_absorpt_coefficient_mu    0.639
_exptl_crystal_colour
;
;
_exptl_crystal_density_diffrn    1.275
_exptl_crystal_description
;
;
_exptl_crystal_F_000             462
_exptl_crystal_size_max          0.180
_exptl_crystal_size_mid          0.170
_exptl_crystal_size_min          0.140
_refine_diff_density_max         0.122
_refine_diff_density_min         -0.172
_refine_diff_density_rms         0.035
_refine_ls_abs_structure_details
;
 Flack x determined using 695 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.09(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     200
_refine_ls_number_reflns         2006
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0283
_refine_ls_R_factor_gt           0.0281
_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^)+(0.0497P)^2^+0.1289P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0720
_refine_ls_wR_factor_ref         0.0722
_reflns_Friedel_coverage         0.560
_reflns_Friedel_fraction_full    0.559
_reflns_Friedel_fraction_max     0.559
_reflns_number_gt                1985
_reflns_number_total             2006
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja7b10365_si_007.cif
_cod_data_source_block           cu_20170607szzz01_0m_a
_cod_original_cell_volume        1134.80(6)
_cod_database_code               4126732
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.894
_shelx_estimated_absorpt_t_max   0.916
_shelx_res_checksum              48194
_shelx_hkl_checksum              44057