Aminocatalyzed asymmetric Diels-Alder reaction of 2,4-dienals and rhodanine/hydantoin derivatives.
Zhu, Kailong; Huang, Huicai; Wu, Wenbin; Wei, Yuan; Ye, Jinxing; Chemical communications (Cambridge, England) 49 (2013) 2157–2159; doi:10.1039/c3cc00023k

data_7112379
_publ_section_title
;
 Aminocatalyzed asymmetric Diels-Alder reaction of 2,4-dienals and
 rhodanine/hydantoin derivatives.
;
_journal_issue                   21
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              2157
_journal_page_last               2159
_journal_paper_doi               10.1039/c3cc00023k
_journal_volume                  49
_journal_year                    2013
_chemical_absolute_configuration ad
_chemical_formula_sum            'C19 H20 Br N O2 S2'
_chemical_formula_weight         438.39
_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                 106.318(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.9067(13)
_cell_length_b                   9.1539(13)
_cell_length_c                   10.9950(15)
_cell_measurement_reflns_used    2814
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      53.826
_cell_measurement_theta_min      4.895
_cell_volume                     956.9(2)
_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  0.0302
_diffrn_reflns_av_sigmaI/netI    0.0549
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            5756
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         1.93
_exptl_absorpt_coefficient_mu    2.378
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.43771
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.521
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             448
_exptl_crystal_size_max          0.312
_exptl_crystal_size_mid          0.211
_exptl_crystal_size_min          0.156
_refine_diff_density_max         0.426
_refine_diff_density_min         -0.354
_refine_diff_density_rms         0.055
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.005(8)
_refine_ls_extinction_coef       0.0079(15)
_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   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     229
_refine_ls_number_reflns         2911
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0329
_refine_ls_R_factor_gt           0.0299
_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^)+(0.0171P)^2^+0.0705P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0733
_refine_ls_wR_factor_ref         0.0745
_reflns_number_gt                2679
_reflns_number_total             2911
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3cc00023k.txt
_cod_data_source_block           cd212236
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/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 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               7112379