Combined Theoretical and Experimental Study on High Diastereoselective Chirality Transfer Based on [2.2]Paracyclophane Derivative Chiral Reagent
Biao Jiang; Lei Han; Yong-Le Li; Xiao-Long Zhao; Yang Lei; Dai-Qian Xie; John Z. H. Zhang; Journal of Organic Chemistry 77 (2012) 1701–1709; doi:10.1021/jo202186e

data_4026947
_publ_section_title
;
 Combined Theoretical and Experimental Study on High Diastereoselective
 Chirality Transfer Based on [2.2]Paracyclophane Derivative Chiral Reagent
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1701
_journal_page_last               1709
_journal_paper_doi               10.1021/jo202186e
_journal_volume                  77
_journal_year                    2012
_chemical_absolute_configuration ad
_chemical_formula_sum            'C25 H25 N O'
_chemical_formula_weight         355.46
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_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_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.1652(8)
_cell_length_b                   8.6326(9)
_cell_length_c                   27.024(3)
_cell_measurement_reflns_used    3095
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      48.834
_cell_measurement_theta_min      4.954
_cell_volume                     1904.8(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1360
_diffrn_reflns_av_sigmaI/netI    0.0740
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            11240
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         1.51
_exptl_absorpt_coefficient_mu    0.075
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.75208
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.239
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             760
_exptl_crystal_size_max          0.496
_exptl_crystal_size_mid          0.447
_exptl_crystal_size_min          0.315
_refine_diff_density_max         0.204
_refine_diff_density_min         -0.165
_refine_diff_density_rms         0.039
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   10(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.981
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     245
_refine_ls_number_reflns         2390
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.981
_refine_ls_R_factor_all          0.0565
_refine_ls_R_factor_gt           0.0463
_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^)+(0.0618P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1135
_refine_ls_wR_factor_ref         0.1186
_reflns_number_gt                1940
_reflns_number_total             2390
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo202186e_si_005.cif
_cod_data_source_block           cd2723
_cod_original_cell_volume        1904.9(3)
_cod_database_code               4026947