Asymmetric Michael Addition of Substituted Rhodanines to α,β-Unsaturated Ketones Catalyzed by Bulky Primary Amines.
Yu, Feng; Hu, Haoxiang; Gu, Xiaodong; Ye, Jinxing; Organic letters 14 (2012) 2038–2041; doi:10.1021/ol300489q

data_1507596
_publ_section_title
;
 Asymmetric Michael Addition of Substituted Rhodanines to
 \a,\b-Unsaturated Ketones Catalyzed by Bulky Primary Amines.
;
_journal_issue                   8
_journal_name_full               'Organic letters'
_journal_page_first              2038
_journal_page_last               2041
_journal_paper_doi               10.1021/ol300489q
_journal_volume                  14
_journal_year                    2012
_chemical_absolute_configuration ad
_chemical_formula_sum            'C20 H21 N O3 S2'
_chemical_formula_weight         387.50
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_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                 106.6910(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.3022(6)
_cell_length_b                   6.6239(4)
_cell_length_c                   14.3858(9)
_cell_measurement_reflns_used    3885
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      56.626
_cell_measurement_theta_min      5.727
_cell_volume                     940.34(10)
_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 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0171
_diffrn_reflns_av_sigmaI/netI    0.0267
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            5617
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.06
_exptl_absorpt_coefficient_mu    0.303
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.82505
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.369
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             408
_exptl_crystal_size_max          0.312
_exptl_crystal_size_mid          0.258
_exptl_crystal_size_min          0.231
_refine_diff_density_max         0.206
_refine_diff_density_min         -0.184
_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   0.04(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.078
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     245
_refine_ls_number_reflns         2854
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.078
_refine_ls_R_factor_all          0.0291
_refine_ls_R_factor_gt           0.0284
_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^)+(0.0452P)^2^+0.1000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0740
_refine_ls_wR_factor_ref         0.0748
_reflns_number_gt                2784
_reflns_number_total             2854
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol300489q_si_005.cif
_cod_data_source_block           cd211526
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               1507596