Organic-base Catalyzed Asymmetric 1,4-Addition of Tritylthiol to in Situ Generated Aza-o-Quinone Methides at H2O/DCM Interface
Li, Can; Liu, Yan; Liu, Xianghui; Wang, Kai; Guo, Wengang; Chemical Communications  (2019) –; doi:10.1039/C8CC09382B

data_7122949
_publ_section_title
;
 Organic-base Catalyzed Asymmetric 1,4-Addition of Tritylthiol to in Situ
 Generated Aza-o-Quinone Methides at H2O/DCM Interface
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C8CC09382B
_journal_year                    2019
_chemical_absolute_configuration ad
_chemical_formula_sum            'C42 H38 N O3 S2'
_chemical_formula_weight         668.85
_chemical_name_systematic
; 
 ? 
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2013
_audit_update_record
;
2019-02-01 deposited with the CCDC.
2019-02-04 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.090(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.4563(7)
_cell_length_b                   40.805(4)
_cell_length_c                   9.7208(9)
_cell_measurement_reflns_used    9669
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      52.088
_cell_measurement_theta_min      4.642
_cell_volume                     3750.9(6)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.961
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0538
_diffrn_reflns_av_unetI/netI     0.0774
_diffrn_reflns_Laue_measured_fraction_full 0.961
_diffrn_reflns_Laue_measured_fraction_max 0.986
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       48
_diffrn_reflns_limit_k_min       -48
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            26698
_diffrn_reflns_point_group_measured_fraction_full 0.960
_diffrn_reflns_point_group_measured_fraction_max 0.986
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         24.998
_diffrn_reflns_theta_min         2.095
_exptl_absorpt_coefficient_mu    0.180
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6584
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.184
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             1412
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.170
_exptl_crystal_size_min          0.130
_platon_squeeze_details
;
;
_refine_diff_density_max         0.519
_refine_diff_density_min         -0.471
_refine_diff_density_rms         0.084
_refine_ls_abs_structure_details
; 
 Flack x determined using 4287 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons and Flack (2004), Acta Cryst. A60, s61). 
;
_refine_ls_abs_structure_Flack   0.04(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     874
_refine_ls_number_reflns         12519
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0906
_refine_ls_R_factor_gt           0.0803
_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^)+(0.1639P)^2^+0.6365P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2166
_refine_ls_wR_factor_ref         0.2316
_reflns_Friedel_coverage         0.968
_reflns_Friedel_fraction_full    0.960
_reflns_Friedel_fraction_max     0.985
_reflns_number_gt                10711
_reflns_number_total             12519
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8cc09382b2.cif
_cod_data_source_block           mo_d8v18109_0m
_cod_database_code               7122949
_shelx_estimated_absorpt_t_min   0.965
_shelx_estimated_absorpt_t_max   0.977
_shelxl_version_number           2013-4
_shelx_res_checksum              39524
_shelx_hkl_checksum              72472