Catalytic asymmetric construction of bridged bicyclo[<i>m</i>.3.1] rings using an intramolecular Diels-Alder reaction.
Li, Kai; Zhao, Zhengxing; Qin, Wenling; Liu, Yidong; Yan, Hailong; Chemical communications (Cambridge, England) 60 (2024) 9570–9573; doi:10.1039/d4cc02850c

data_7133416
_publ_section_title
;
 Catalytic asymmetric construction of bridged bicyclo[<i>m</i>.3.1] rings
 using an intramolecular Diels-Alder reaction.
;
_journal_issue                   71
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              9570
_journal_page_last               9573
_journal_paper_doi               10.1039/d4cc02850c
_journal_volume                  60
_journal_year                    2024
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C22 H17 Br O'
_chemical_formula_sum            'C22 H17 Br O'
_chemical_formula_weight         377.26
_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             2021-11-17
_audit_creation_method
;
Olex2 1.5
(compiled 2021.10.07 svn.r9718050b for OlexSys, GUI svn.r6410)
;
_audit_update_record
;
2022-02-11 deposited with the CCDC.	2024-07-23 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.5950(3)
_cell_length_b                   10.2307(4)
_cell_length_c                   29.7158(12)
_cell_measurement_reflns_used    2301
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.5810
_cell_measurement_theta_min      3.9530
_cell_volume                     1700.96(13)
_computing_cell_refinement       'CrysAlisPro 1.171.41.117a (Rigaku OD, 2021)'
_computing_data_collection       'CrysAlisPro 1.171.41.117a (Rigaku OD, 2021)'
_computing_data_reduction        'CrysAlisPro 1.171.41.117a (Rigaku OD, 2021)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 16.0892
_diffrn_detector_type            Eos
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.888
_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    -78.00   5.00   1.00    7.89    --  -18.78 -38.00 120.00   83
  2  \w    -91.00   6.00   1.00    7.89    --  -18.78 -38.00-150.00   97
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Single source at offset/far, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.0091933000
_diffrn_orient_matrix_UB_12      -0.0566252000
_diffrn_orient_matrix_UB_13      0.0136688000
_diffrn_orient_matrix_UB_21      -0.0526910000
_diffrn_orient_matrix_UB_22      -0.0378812000
_diffrn_orient_matrix_UB_23      -0.0173429000
_diffrn_orient_matrix_UB_31      0.1149600000
_diffrn_orient_matrix_UB_32      -0.0128964000
_diffrn_orient_matrix_UB_33      -0.0090470000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0283
_diffrn_reflns_av_unetI/netI     0.0627
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.888
_diffrn_reflns_limit_h_max       3
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       37
_diffrn_reflns_limit_l_min       -37
_diffrn_reflns_number            6328
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.851
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.010
_diffrn_reflns_theta_min         3.706
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    2.421
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.83072
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.41.117a (Rigaku Oxford Diffraction, 2021)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.473
_exptl_crystal_description       block
_exptl_crystal_F_000             768
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.24
_refine_diff_density_max         0.295
_refine_diff_density_min         -0.383
_refine_diff_density_rms         0.059
_refine_ls_abs_structure_details
;
 Flack x determined using 917 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.005(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     218
_refine_ls_number_reflns         3859
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0673
_refine_ls_R_factor_gt           0.0436
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0192P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0664
_refine_ls_wR_factor_ref         0.0772
_reflns_Friedel_coverage         0.649
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.800
_reflns_number_gt                2981
_reflns_number_total             3859
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4cc02850c2.cif
_cod_data_source_block           20211117-zzx-934
_cod_depositor_comments
'Adding full bibliography for 7133411--7133420.cif.'
_cod_database_code               7133416
_shelx_shelxl_version_number     2018/3
_chemical_oxdiff_formula         'C22 H17 Br O'
_olex2_refinement_description
;
1. 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
2.a Ternary CH refined with riding coordinates:
 C18(H18)
2.b Secondary CH2 refined with riding coordinates:
 C19(H19A,H19B), C20(H20A,H20B)
2.c Aromatic/amide H refined with riding coordinates:
 C4(H4), C10(H10), C16(H16), C3(H3), C13(H13), C11(H11), C15(H15), C12(H12),
 C22(H22)
2.d Idealised Me refined as rotating group:
 C1(H1A,H1B,H1C)
;
_shelx_res_checksum              92613
_shelx_hkl_checksum              2262
_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 1.091
_oxdiff_exptl_absorpt_empirical_full_min 0.901