Design of oxa-spirocyclic PHOX ligands for the asymmetric synthesis of lorcaserin via iridium-catalyzed asymmetric hydrogenation.
Ye, Xiang-Yu; Liang, Zhi-Qin; Jin, Cong; Lang, Qi-Wei; Chen, Gen-Qiang; Zhang, Xumu; Chemical communications (Cambridge, England) 57 (2021) 195–198; doi:10.1039/d0cc06311h

data_7127554
_publ_section_title
;
 Design of oxa-spirocyclic PHOX ligands for the asymmetric synthesis of
 lorcaserin via iridium-catalyzed asymmetric hydrogenation.
;
_journal_issue                   2
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              195
_journal_page_last               198
_journal_paper_doi               10.1039/d0cc06311h
_journal_volume                  57
_journal_year                    2021
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C11 H11 Br N O'
_chemical_formula_sum            'C11 H11 Br N O'
_chemical_formula_weight         253.12
_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             2019-12-25
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2020-06-04 deposited with the CCDC.	2020-11-13 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   4.2604(2)
_cell_length_b                   7.8580(4)
_cell_length_c                   30.3127(14)
_cell_measurement_reflns_used    5505
_cell_measurement_temperature    100
_cell_measurement_theta_max      30.68
_cell_measurement_theta_min      2.68
_cell_volume                     1014.82(8)
_computing_cell_refinement       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_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      100
_diffrn_detector                 'Bruker PHOTON 100 area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CMOS area detector'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'BrukerD8 venture microsource'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'mirror optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0485
_diffrn_reflns_av_unetI/netI     0.0365
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       42
_diffrn_reflns_limit_l_min       -43
_diffrn_reflns_number            13812
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.679
_diffrn_reflns_theta_min         2.678
_diffrn_source                   'microfocus sealed X-ray tube'
_diffrn_source_type              'Incoatec I\ms'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    4.015
_exptl_absorpt_correction_T_max  0.2657
_exptl_absorpt_correction_T_min  0.1383
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.1188 before and 0.0783 after correction. The Ratio of minimum to maximum transmission is 0.5205. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.657
_exptl_crystal_description       block
_exptl_crystal_F_000             508
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.36
_refine_diff_density_max         0.813
_refine_diff_density_min         -1.134
_refine_diff_density_rms         0.096
_refine_ls_abs_structure_details
;
 Flack x determined using 1150 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.010(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.076
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     128
_refine_ls_number_reflns         3143
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.076
_refine_ls_R_factor_all          0.0326
_refine_ls_R_factor_gt           0.0304
_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^)+(0.0268P)^2^+0.9848P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0706
_refine_ls_wR_factor_ref         0.0714
_reflns_Friedel_coverage         0.671
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.998
_reflns_number_gt                3004
_reflns_number_total             3143
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0cc06311h2.cif
_cod_data_source_block           cxy1088_0m
_cod_depositor_comments          'Adding full bibliography for 7127554.cif.'
_cod_database_code               7127554
_shelx_shelxl_version_number     2016/6
_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:
 C2(H2)
2.b Secondary CH2 refined with riding coordinates:
 C8(H8A,H8B), C9(H9A,H9B)
2.c Aromatic/amide H refined with riding coordinates:
 C4(H4), C6(H6), C11(H11)
2.d Idealised Me refined as rotating group:
 C1(H1A,H1B,H1C)
;
_olex2_submission_special_instructions 'No special instructions were received'