An efficient synthesis of hydantoins via sustainable integration of coupled domino processes.
Gao, Meng; Yang, Yan; Wu, Yan-Dong; Deng, Cong; Shu, Wen-Ming; Zhang, Dong-Xue; Cao, Li-Ping; She, Neng-Fang; Wu, An-Xin; Organic letters 12 (2010) 4026–4029; doi:10.1021/ol1015948

data_1503160
_publ_section_title
;
 An efficient synthesis of hydantoins via sustainable integration of
 coupled domino processes.
;
_journal_issue                   18
_journal_name_full               'Organic letters'
_journal_page_first              4026
_journal_page_last               4029
_journal_paper_doi               10.1021/ol1015948
_journal_volume                  12
_journal_year                    2010
_chemical_formula_sum            'C26 H22 N2 O4'
_chemical_formula_weight         426.45
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 90.309(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   10.5130(10)
_cell_length_b                   21.209(2)
_cell_length_c                   19.5593(19)
_cell_measurement_reflns_used    7435
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      26.46
_cell_measurement_theta_min      2.29
_cell_volume                     4361.1(7)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      298(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0928
_diffrn_reflns_av_sigmaI/netI    0.0642
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            23790
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.08
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_T_max  0.9912
_exptl_absorpt_correction_T_min  0.9860
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.299
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1792
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.228
_refine_diff_density_min         -0.275
_refine_diff_density_rms         0.049
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.148
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     581
_refine_ls_number_reflns         8089
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.148
_refine_ls_R_factor_all          0.0885
_refine_ls_R_factor_gt           0.0727
_refine_ls_shift/su_max          0.042
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0568P)^2^+1.8147P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1637
_refine_ls_wR_factor_ref         0.1724
_reflns_number_gt                6595
_reflns_number_total             8089
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol1015948_si_001.cif
_cod_data_source_block           5a
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        4361.0(7)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1503160