Catalytic asymmetric conjugate addition of various α-mercaptoketones to α,β-unsaturated N-acylated oxazolidin-2-ones with bifunctional organocatalyst
Zhao, Bo-Liang; Du, Da-Ming; RSC Advances 4 (2014) 27346–; doi:10.1039/c4ra02400a

data_7216783
_publ_section_title
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 Catalytic asymmetric conjugate addition of various \a-mercaptoketones to
 \a,\b-unsaturated N-acylated oxazolidin-2-ones with bifunctional
 organocatalyst
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_journal_issue                   52
_journal_name_full               'RSC Advances'
_journal_page_first              27346
_journal_paper_doi               10.1039/c4ra02400a
_journal_volume                  4
_journal_year                    2014
_chemical_absolute_configuration ad
_chemical_formula_sum            'C20 H19 N O4 S'
_chemical_formula_weight         369.42
_space_group_IT_number           1
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  'P 1'
_symmetry_space_group_name_H-M   'P 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                99.439(3)
_cell_angle_beta                 104.410(4)
_cell_angle_gamma                94.540(3)
_cell_formula_units_Z            1
_cell_length_a                   5.5171(15)
_cell_length_b                   8.125(2)
_cell_length_c                   10.508(3)
_cell_measurement_reflns_used    1891
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      31.502
_cell_measurement_theta_min      2.955
_cell_volume                     446.5(2)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(2)
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  AFC10/Saturn724+
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Rotating Anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0200
_diffrn_reflns_av_sigmaI/netI    0.0446
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            5973
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.00
_diffrn_reflns_theta_min         2.95
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.207
_exptl_absorpt_correction_T_max  0.9501
_exptl_absorpt_correction_T_min  0.9036
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.374
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Chunk
_exptl_crystal_F_000             194
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.36
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.205
_refine_diff_density_min         -0.188
_refine_diff_density_rms         0.036
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.02(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     235
_refine_ls_number_reflns         4453
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.000
_refine_ls_R_factor_all          0.0307
_refine_ls_R_factor_gt           0.0288
_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^)+(0.0215P)^2^+0.0506P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0624
_refine_ls_wR_factor_ref         0.0630
_reflns_number_gt                4174
_reflns_number_total             4453
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ra02400a2.cif
_cod_data_source_block           bo2735
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scans' was replaced
with the value 'multi-scan' as specified in the replacement file
'src/cod-tools/trunk/data/replacement-values/replacement_values.lst'.

Automatic conversion script
Id: cif_fix_values 5376 2017-05-30 11:51:03Z andrius 
;
_cod_original_sg_symbol_H-M      P1
_cod_database_code               7216783