Kinetic resolution of 2,2-disubstituted-1,3-diketones via carbene catalysis
Xu, Weici; Li, Yuanzhen; Liu, Rui; Yang, Shuang; Liu, Jian; Fang, Xinqiang; Organic Chemistry Frontiers 6 (2019) 290–; doi:10.1039/C8QO01137K

data_1554515
_publ_section_title
;
 Kinetic resolution of 2,2-disubstituted-1,3-diketones via carbene
 catalysis
;
_journal_issue                   3
_journal_name_full               'Organic Chemistry Frontiers'
_journal_page_first              290
_journal_paper_doi               10.1039/C8QO01137K
_journal_volume                  6
_journal_year                    2019
_chemical_formula_moiety         'C20 H20 O3'
_chemical_formula_sum            'C20 H20 O3'
_chemical_formula_weight         308.36
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2017/1
_audit_update_record
;
2017-11-14 deposited with the CCDC.
2018-11-05 downloaded from the CCDC.
;
_cell_angle_alpha                80.603(4)
_cell_angle_beta                 87.055(4)
_cell_angle_gamma                65.920(6)
_cell_formula_units_Z            2
_cell_length_a                   8.4310(6)
_cell_length_b                   8.6965(5)
_cell_length_c                   11.7742(5)
_cell_measurement_reflns_used    2971
_cell_measurement_temperature    100.0(1)
_cell_measurement_theta_max      72.2850
_cell_measurement_theta_min      3.8030
_cell_volume                     777.47(9)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
;
_computing_structure_refinement  'SHELXL-2017/1 (Sheldrick, 2017)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100.0(1)
_diffrn_detector_area_resol_mean 10.5594
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.963
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0148
_diffrn_reflns_av_unetI/netI     0.0211
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.963
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            5036
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.963
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         73.290
_diffrn_reflns_theta_min         3.806
_diffrn_source                   'sealed X-ray tube'
_exptl_absorpt_coefficient_mu    0.701
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.86741
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.317
_exptl_crystal_description       prism
_exptl_crystal_F_000             328
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.290
_refine_diff_density_min         -0.205
_refine_diff_density_rms         0.039
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     211
_refine_ls_number_reflns         3022
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0425
_refine_ls_R_factor_gt           0.0362
_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^)+(0.0433P)^2^+0.3093P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0912
_refine_ls_wR_factor_ref         0.0961
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2658
_reflns_number_total             3022
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8qo01137k2.cif
_cod_data_source_block           2
_cod_database_code               1554515
_shelx_shelxl_version_number     2017/1
_shelx_res_checksum              34661
_shelx_hkl_checksum              223