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_7151654
_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.
;
_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            'C53 H45 Ho N2 O11 Zn'
_chemical_formula_weight         1116.21
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
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_atom_sites_solution_primary     direct
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_cell_angle_alpha                75.540(3)
_cell_angle_beta                 82.406(4)
_cell_angle_gamma                83.166(4)
_cell_formula_units_Z            2
_cell_length_a                   13.056(4)
_cell_length_b                   13.146(4)
_cell_length_c                   15.367(5)
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_cell_volume                     2521.4(14)
_computing_cell_refinement       'SAINT (Bruker, 2005)'
_computing_data_collection       'APEX2 (Bruker, 2005)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL (Sheldrick, 1997a)'
_computing_publication_material  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 0.947
_diffrn_measured_fraction_theta_max 0.947
_diffrn_measurement_device_type  'Smart Apex II CCD'
_diffrn_measurement_method       CCD
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
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_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            13303
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_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.15
_exptl_absorpt_coefficient_mu    2.094
_exptl_absorpt_correction_T_max  0.9379
_exptl_absorpt_correction_T_min  0.5354
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            'light yellow'
_exptl_crystal_density_diffrn    1.470
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1124
_exptl_crystal_size_max          0.34
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_refine_diff_density_max         1.869
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_refine_ls_extinction_method     none
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_refine_ls_number_reflns         9394
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_refine_ls_R_factor_all          0.0657
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_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0978P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1415
_refine_ls_wR_factor_ref         0.1497
_reflns_number_gt                7735
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_cod_data_source_file            C0OB00550A.TXT
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_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 
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_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7151654