Modular Chiral Bisoxalamide–Copper-Catalyzed Asymmetric Oxo-Diels–Alder Reaction: Carbonyl Coordination for High Enantio- and Diastereocontrols
Chen, Jun-Bo; Xu, Man; Zhang, Jun-Qi; Sun, Bing-Bing; Hu, Jia-Ming; Yu, Jie-Qiang; Wang, Xing-Wang; Xia, Yuanzhi; Wang, Zheng; ACS Catalysis  (2020) 3556–; doi:10.1021/acscatal.9b05606

data_4517455
_publ_section_title
;
 Modular Chiral Bisoxalamide--Copper-Catalyzed Asymmetric Oxo-Diels--Alder
 Reaction: Carbonyl Coordination for High Enantio- and Diastereocontrols
;
_journal_name_full               'ACS Catalysis'
_journal_page_first              3556
_journal_paper_doi               10.1021/acscatal.9b05606
_journal_year                    2020
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C15 H15 Br O4'
_chemical_formula_sum            'C15 H15 Br O4'
_chemical_formula_weight         339.18
_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'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2019-05-16
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.2207(11)
_cell_length_b                   11.4378(15)
_cell_length_c                   12.3943(12)
_cell_measurement_reflns_used    992
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      21.1670
_cell_measurement_theta_min      3.8430
_cell_volume                     1448.9(3)
_computing_cell_refinement       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 16.1213
_diffrn_detector_type            Eos
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.859
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
--------------------------------------------------------------------------
  1  \w      2.00  28.00   1.00    5.00    --   15.49  57.00  60.00   26
  2  \w     -7.00  87.00   1.00    5.00    --   15.49  19.00-120.00   94
  3  \w    -37.00  22.00   1.00    5.00    --   15.49 -19.00-120.00   59
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Xcalibur, Eos, Gemini'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0247299000
_diffrn_orient_matrix_UB_12      -0.0371556000
_diffrn_orient_matrix_UB_13      0.0410366000
_diffrn_orient_matrix_UB_21      0.0546236000
_diffrn_orient_matrix_UB_22      -0.0375708000
_diffrn_orient_matrix_UB_23      -0.0066973000
_diffrn_orient_matrix_UB_31      0.0350099000
_diffrn_orient_matrix_UB_32      0.0324621000
_diffrn_orient_matrix_UB_33      0.0392777000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0340
_diffrn_reflns_av_unetI/netI     0.0799
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.859
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            5791
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.856
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.363
_diffrn_reflns_theta_min         3.563
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_source_type              'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    2.847
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.29787
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.41 (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.555
_exptl_crystal_description       block
_exptl_crystal_F_000             688
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.568
_refine_diff_density_min         -0.839
_refine_diff_density_rms         0.064
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.03(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     183
_refine_ls_number_reflns         3275
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.1188
_refine_ls_R_factor_gt           0.0606
_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^)+(0.0459P)^2^+0.3794P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1082
_refine_ls_wR_factor_ref         0.1291
_reflns_Friedel_coverage         0.750
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.852
_reflns_number_gt                1925
_reflns_number_total             3275
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs9b05606_si_002.cif
_cod_data_source_block           1
_cod_database_code               4517455
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.600
_shelx_estimated_absorpt_t_min   0.482
_reflns_odcompleteness_completeness 99.54
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.32
_olex2_refinement_description
;
1. Twinned data refinement
 Scales: 0.97(2)
 0.03(2)
2. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
3.a Ternary CH refined with riding coordinates:
 C3(H3), C4(H4), C5(H5)
3.b Secondary CH2 refined with riding coordinates:
 C8(H8A,H8B), C9(H9A,H9B)
3.c Aromatic/amide H refined with riding coordinates:
 C15(H15), C2(H2), C14(H14), C11(H11), C12(H12)
3.d Idealised Me refined as rotating group:
 C7(H7A,H7B,H7C)
;
_shelx_res_checksum              65404
_shelx_hkl_checksum              43264
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 2.132
_oxdiff_exptl_absorpt_empirical_full_min 0.587