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_4126736
_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_formula_sum            'C20 H19 Br O2'
_chemical_formula_weight         371.26
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 91.337(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.2672(13)
_cell_length_b                   5.7843(6)
_cell_length_c                   21.786(3)
_cell_measurement_reflns_used    4603
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      26.22
_cell_measurement_theta_min      3.07
_cell_volume                     1671.4(3)
_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 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0466
_diffrn_reflns_av_unetI/netI     0.0439
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            11443
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.005
_diffrn_reflns_theta_max         25.005
_diffrn_reflns_theta_min         2.392
_exptl_absorpt_coefficient_mu    2.467
_exptl_crystal_colour
;
;
_exptl_crystal_density_diffrn    1.475
_exptl_crystal_description
;
;
_exptl_crystal_F_000             760
_exptl_crystal_size_max          0.260
_exptl_crystal_size_mid          0.250
_exptl_crystal_size_min          0.220
_refine_diff_density_max         0.208
_refine_diff_density_min         -0.608
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.063
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     209
_refine_ls_number_reflns         2930
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.063
_refine_ls_R_factor_all          0.0467
_refine_ls_R_factor_gt           0.0346
_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^)+(0.0299P)^2^+0.6987P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0788
_refine_ls_wR_factor_ref         0.0842
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2403
_reflns_number_total             2930
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja7b10365_si_005.cif
_cod_data_source_block           20170515SZZ_ZCD_07_049_2_0m_a
_cod_original_cell_volume        1671.5(3)
_cod_database_code               4126736
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.566
_shelx_estimated_absorpt_t_max   0.613
_shelx_res_checksum              4254
_shelx_hkl_checksum              15106