Asymmetric construction of dihydrobenzofuran-2,5-dione derivatives via desymmetrization of p-quinols with azlactones
Xie, Lihua; Dong, Shunxi; Zhang, Qian; Feng, Xiaoming; Liu, Xiaohua; Chemical Communications  (2018) –; doi:10.1039/C8CC08985J

data_7122696
_publ_section_title
;
 Asymmetric construction of dihydrobenzofuran-2,5-dione derivatives via
 desymmetrization of p-quinols with azlactones
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C8CC08985J
_journal_year                    2018
_chemical_absolute_configuration ad
_chemical_formula_sum            'C23 H18 F3 N O5'
_chemical_formula_weight         445.38
_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   mixed
_audit_creation_method           SHELXL-2016/6
_audit_update_record
;
2018-11-08 deposited with the CCDC.
2018-11-13 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.88270(10)
_cell_length_b                   7.78810(10)
_cell_length_c                   36.9400(5)
_cell_measurement_reflns_used    9922
_cell_measurement_temperature    170(2)
_cell_measurement_theta_max      65.08
_cell_measurement_theta_min      5.68
_cell_volume                     1980.10(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-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      170(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'BRUKER D8 VENTURE PHOTON II'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0253
_diffrn_reflns_av_unetI/netI     0.0237
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       40
_diffrn_reflns_limit_l_min       -43
_diffrn_reflns_number            11571
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        65.077
_diffrn_reflns_theta_max         65.077
_diffrn_reflns_theta_min         5.806
_exptl_absorpt_coefficient_mu    1.064
_exptl_absorpt_correction_T_max  0.7526
_exptl_absorpt_correction_T_min  0.6355
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 SADABS 2016/2: Krause, L., Herbst-Irmer, R., Sheldrick G.M. & Stalke D.,
 J. Appl. Cryst. 48 (2015) 3-10
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.494
_exptl_crystal_description       BAR
_exptl_crystal_F_000             920
_exptl_crystal_size_max          0.360
_exptl_crystal_size_mid          0.110
_exptl_crystal_size_min          0.110
_refine_diff_density_max         0.146
_refine_diff_density_min         -0.156
_refine_diff_density_rms         0.033
_refine_ls_abs_structure_details
;
 Flack x determined using 1347 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.03(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     293
_refine_ls_number_reflns         3355
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0240
_refine_ls_R_factor_gt           0.0237
_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^)+(0.0310P)^2^+0.3233P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0597
_refine_ls_wR_factor_ref         0.0599
_reflns_Friedel_coverage         0.688
_reflns_Friedel_fraction_full    0.995
_reflns_Friedel_fraction_max     0.995
_reflns_number_gt                3317
_reflns_number_total             3355
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8cc08985j2.cif
_cod_data_source_block           cu_2018626_XLH_01_0m_a_a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-Scan' changed to
'multi-scan' according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_database_code               7122696
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_min   0.701
_shelx_estimated_absorpt_t_max   0.892
_shelx_res_checksum              20766