Diastereoselective Synthesis of Dispirobarbiturates through Et3N-Catalyzed [3 + 2] Cycloaddition of Barbiturate-Based Olefins with 3-Isothiocyanato Oxindoles.
Zhao, Hong-Wu; Tian, Ting; Li, Bo; Yang, Zhao; Pang, Hai-Liang; Meng, Wei; Song, Xiu-Qing; Chen, Xiao-Qin; The Journal of organic chemistry 80 (2015) 10380–10385; doi:10.1021/acs.joc.5b01810

data_4036400
_publ_section_title
;
 Diastereoselective Synthesis of Dispirobarbiturates through
 Et3N-Catalyzed [3 + 2] Cycloaddition of Barbiturate-Based Olefins with
 3-Isothiocyanato Oxindoles.
;
_journal_issue                   20
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              10380
_journal_page_last               10385
_journal_paper_doi               10.1021/acs.joc.5b01810
_journal_volume                  80
_journal_year                    2015
_chemical_formula_sum            'C24 H22 N4 O5 S'
_chemical_formula_weight         478.52
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
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_symmetry_cell_setting           monoclinic
_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
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_cell_angle_alpha                90.00
_cell_angle_beta                 108.77(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.284(3)
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_cell_length_c                   19.090(4)
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_cell_measurement_theta_min      1.9931
_cell_volume                     2211.2(9)
_computing_cell_refinement       crystalclear
_computing_data_collection       crystalclear
_computing_data_reduction        crystalclear
_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      113(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'rigaku saturn'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0381
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_diffrn_reflns_theta_min         2.25
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
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_diffrn_standards_number         0
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_exptl_absorpt_correction_T_min  0.9626
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   crystalclear
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.437
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             1000
_exptl_crystal_size_max          0.20
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_refine_ls_extinction_coef       0.015(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
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_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0601
_refine_ls_R_factor_gt           0.0501
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0895P)^2^+0.1952P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1325
_refine_ls_wR_factor_ref         0.1423
_reflns_number_gt                4367
_reflns_number_total             5233
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo5b01810_si_001.cif
_cod_data_source_block           shelxl
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'MULTI-SCAN' was
changed to 'multi-scan' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_cell_volume        2211.2(8)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4036400