A novel synthesis of oxazolidine-2,4-diones via an efficient fixation of CO2 with 3-aryl-2-alkynamides.
Chen, Guofei; Fu, Chunling; Ma, Shengming; Organic & biomolecular chemistry 9 (2011) 105–110; doi:10.1039/C0OB00550A

data_7151651
_publ_section_title
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 A novel synthesis of oxazolidine-2,4-diones via an efficient fixation
 of CO2 with 3-aryl-2-alkynamides.
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_journal_issue                   1
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              105
_journal_page_last               110
_journal_paper_doi               10.1039/C0OB00550A
_journal_volume                  9
_journal_year                    2011
_chemical_formula_sum            'C17 H13 N O3'
_chemical_formula_weight         279.28
_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                 106.517(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.4285(4)
_cell_length_b                   31.4664(18)
_cell_length_c                   7.0702(4)
_cell_measurement_temperature    173(2)
_cell_volume                     1371.16(14)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0299
_diffrn_reflns_av_sigmaI/netI    0.0185
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       37
_diffrn_reflns_limit_k_min       -37
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            15862
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         2.59
_exptl_absorpt_coefficient_mu    0.094
_exptl_absorpt_correction_T_max  1
_exptl_absorpt_correction_T_min  0.795411
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.353
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             584
_exptl_crystal_size_max          0.505
_exptl_crystal_size_mid          0.121
_exptl_crystal_size_min          0.077
_refine_diff_density_max         0.382
_refine_diff_density_min         -0.170
_refine_diff_density_rms         0.034
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.057
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         2426
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0489
_refine_ls_R_factor_gt           0.0411
_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^)+(0.0416P)^2^+0.6758P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0989
_refine_ls_wR_factor_ref         0.1038
_reflns_number_gt                2086
_reflns_number_total             2426
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            C0OB00550A.TXT
_cod_data_source_block           z
_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_enum 1555 2011-01-17 13:19:09Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7151651