Urea-catalyzed construction of oxazinanes.
Hardman, Andrea M.; So, Sonia S.; Mattson, Anita E.; Organic & biomolecular chemistry 11 (2013) 5793–5797; doi:10.1039/c3ob41517a

data_7153061
_publ_section_title
;
 Urea-catalyzed construction of oxazinanes.
;
_journal_issue                   35
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              5793
_journal_page_last               5797
_journal_paper_doi               10.1039/c3ob41517a
_journal_volume                  11
_journal_year                    2013
_chemical_absolute_configuration ad
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C24 H21 Cl1 N2 O5'
_chemical_formula_sum            'C24 H21 Cl N2 O5'
_chemical_formula_weight         452.88
_chemical_name_common            'Mattson 1956'
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.4
_audit_creation_date             2013-06-13T10:52:33-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.57840(1)
_cell_length_b                   15.2797(2)
_cell_length_c                   16.5909(2)
_cell_measurement_reflns_used    2845
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      1.018
_cell_measurement_wavelength     0.71073
_cell_volume                     2174.66(4)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_orient_matrix_type       'by Bruker AXS Collect from scalepack cell'
_diffrn_orient_matrix_UB_11      -0.436277E-1
_diffrn_orient_matrix_UB_12      -0.602394E-1
_diffrn_orient_matrix_UB_13      -0.67988E-2
_diffrn_orient_matrix_UB_21      -0.164175E-1
_diffrn_orient_matrix_UB_22      0.115607E-1
_diffrn_orient_matrix_UB_23      -0.587157E-1
_diffrn_orient_matrix_UB_31      0.106846
_diffrn_orient_matrix_UB_32      -0.228208E-1
_diffrn_orient_matrix_UB_33      -0.117981E-1
_diffrn_radiation_monochromator  'horizonally mounted graphite crystal'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.033
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            31966
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        27.5
_diffrn_reflns_theta_max         27.474
_diffrn_reflns_theta_min         2.455
_diffrn_source                   'Enraf Nonius FR590'
_exptl_absorpt_coefficient_mu    0.215
_exptl_absorpt_correction_T_max  0.968
_exptl_absorpt_correction_T_min  0.834
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'HKL Scalepack (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.383
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'rectangular block'
_exptl_crystal_F_000             944
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.159
_refine_diff_density_min         -0.193
_refine_diff_density_rms         0.039
_refine_ls_abs_structure_details
;
 Flack x determined using 1714 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons and Flack (2004), Acta Cryst. A60, s61).
;
_refine_ls_abs_structure_Flack   -0.034(16)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     290
_refine_ls_number_reflns         4977
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0446
_refine_ls_R_factor_gt           0.035
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0422P)^2^+0.3942P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.079
_refine_ls_wR_factor_ref         0.0838
_reflns_number_gt                4358
_reflns_number_total             4977
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c3ob41517a.txt
_cod_data_source_block           Mattson1956
_cod_original_cell_volume        2174.66(5)
_cod_database_code               7153061