Catalyst-controlled switch of regioselectivity in the asymmetric allylic alkylation of oxazolones with MBHCs
Zhu, Gongming; Yang, Junxian; Bao, Guangjun; Zhang, Ming; Li, Jing; Li, Yiping; Sun, Wangsheng; Hong, Liang; Wang, Rui; Chemical Communications 52 (2016) 7882–7885; doi:10.1039/c6cc03246j

data_7119378
_publ_section_title
;
 Catalyst-controlled switch of regioselectivity in the asymmetric allylic
 alkylation of oxazolones with MBHCs
;
_journal_issue                   50
_journal_name_full               'Chemical Communications'
_journal_page_first              7882
_journal_page_last               7885
_journal_paper_doi               10.1039/c6cc03246j
_journal_volume                  52
_journal_year                    2016
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C21 H18 Cl N O4'
_chemical_formula_sum            'C21 H18 Cl N O4'
_chemical_formula_weight         383.81
_chemical_name_systematic        'SN2 '
_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   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2015-12-18
_audit_creation_method
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Olex2 1.2
(compiled 2015.09.30 svn.r3233 for OlexSys, GUI svn.r5103)
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_audit_update_record
;
2016-02-01 deposited with the CCDC.
2016-05-19 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.1668(4)
_cell_length_b                   12.4455(8)
_cell_length_c                   21.2096(12)
_cell_measurement_reflns_used    1258
_cell_measurement_temperature    273.77(10)
_cell_measurement_theta_max      22.6230
_cell_measurement_theta_min      4.0380
_cell_volume                     1891.78(19)
_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
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CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
;
_computing_data_reduction
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CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
;
_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    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_environment      air
_diffrn_ambient_temperature      273.77(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 16.0733
_diffrn_detector_type            Eos
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_details
;
  1 omega   -9.00   17.00   1.0000    5.0000
omega____ theta____ kappa____ phi______ frames
    -      -16.5229  -99.0000 -150.0000 26

  2 omega   36.00   98.00   1.0000    5.0000
omega____ theta____ kappa____ phi______ frames
    -       21.2104 -178.0000  150.0000 62

  3 omega   27.00   91.00   1.0000    5.0000
omega____ theta____ kappa____ phi______ frames
    -       21.2104   77.0000 -120.0000 64
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_UB_11      -0.0933594000
_diffrn_orient_matrix_UB_12      0.0147314000
_diffrn_orient_matrix_UB_13      0.0069771000
_diffrn_orient_matrix_UB_21      -0.0240816000
_diffrn_orient_matrix_UB_22      -0.0064023000
_diffrn_orient_matrix_UB_23      -0.0321996000
_diffrn_orient_matrix_UB_31      -0.0222963000
_diffrn_orient_matrix_UB_32      -0.0547189000
_diffrn_orient_matrix_UB_33      0.0056356000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0259
_diffrn_reflns_av_unetI/netI     0.0643
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            5160
_diffrn_reflns_theta_full        26.01
_diffrn_reflns_theta_max         26.01
_diffrn_reflns_theta_min         3.42
_diffrn_source                   'SuperNova (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.228
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.95613
_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            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.348
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             800
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.214
_refine_diff_density_min         -0.163
_refine_diff_density_rms         0.038
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.06(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     246
_refine_ls_number_reflns         3555
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0827
_refine_ls_R_factor_gt           0.0538
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0378P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0962
_refine_ls_wR_factor_ref         0.1143
_reflns_number_gt                2476
_reflns_number_total             3555
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6cc03246j2.cif
_cod_data_source_block           zhugm_1217_2
_cod_database_code               7119378
_reflns_odcompleteness_completeness 99.33
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.32
_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 Secondary CH2 refined with riding coordinates:
 C11(H11A,H11B)
2.b Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C4(H4), C5(H5), C7(H7), C17(H17), C18(H18), C19(H19),
 C20(H20), C21(H21)
2.c Idealised Me refined as rotating group:
 C10(H10A,H10B,H10C), C13(H13A,H13B,H13C)
;
_olex2_date_sample_data_collection 2015-12-18
_olex2_submission_special_instructions 'No special instructions were received'