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_4126738
_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            'C16 H18 O3'
_chemical_formula_weight         258.30
_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'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.1529(3)
_cell_length_b                   11.1691(4)
_cell_length_c                   12.8208(5)
_cell_measurement_reflns_used    3686
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      68.19
_cell_measurement_theta_min      5.25
_cell_volume                     1310.67(8)
_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 0.992
_diffrn_measured_fraction_theta_max 0.992
_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  0.0220
_diffrn_reflns_av_unetI/netI     0.0238
_diffrn_reflns_Laue_measured_fraction_full 0.992
_diffrn_reflns_Laue_measured_fraction_max 0.992
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            4024
_diffrn_reflns_point_group_measured_fraction_full 0.928
_diffrn_reflns_point_group_measured_fraction_max 0.928
_diffrn_reflns_theta_full        64.990
_diffrn_reflns_theta_max         64.990
_diffrn_reflns_theta_min         5.252
_exptl_absorpt_coefficient_mu    0.721
_exptl_crystal_colour
;
;
_exptl_crystal_density_diffrn    1.309
_exptl_crystal_description
;
;
_exptl_crystal_F_000             552
_exptl_crystal_size_max          0.260
_exptl_crystal_size_mid          0.240
_exptl_crystal_size_min          0.220
_refine_diff_density_max         0.220
_refine_diff_density_min         -0.155
_refine_diff_density_rms         0.035
_refine_ls_abs_structure_details
;
 Flack x determined using 763 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.09(6)
_refine_ls_extinction_coef       0.0180(14)
_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   1.096
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     176
_refine_ls_number_reflns         2068
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.096
_refine_ls_R_factor_all          0.0297
_refine_ls_R_factor_gt           0.0293
_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^)+(0.0467P)^2^+0.2063P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0792
_refine_ls_wR_factor_ref         0.0796
_reflns_Friedel_coverage         0.603
_reflns_Friedel_fraction_full    0.838
_reflns_Friedel_fraction_max     0.838
_reflns_number_gt                2044
_reflns_number_total             2068
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja7b10365_si_008.cif
_cod_data_source_block           cu_20170524SZZ_Z_0m_a
_cod_database_code               4126738
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.835
_shelx_estimated_absorpt_t_max   0.858
_shelx_res_checksum              48169
_shelx_hkl_checksum              98986