An environmentally benign approach for the synthesis of 3,3′-pyrrolidonyl spirooxindole derivatives via a cascade Knoevenagel–Michael–cyclization multicomponent reaction
Yu, Chengbin; Lyu, Hairong; Cai, Yan; Miao, Xinyu; Miao, Zhiwei; RSC Advances 3 (2013) 18857–; doi:10.1039/c3ra44119a

data_7239259
_publ_section_title
;
 An environmentally benign approach for the synthesis of
 3,3&#x2032;-pyrrolidonyl spirooxindole derivatives via a cascade
 Knoevenagel--Michael--cyclization multicomponent reaction
;
_journal_issue                   41
_journal_name_full               'RSC Advances'
_journal_page_first              18857
_journal_paper_doi               10.1039/c3ra44119a
_journal_volume                  3
_journal_year                    2013
_chemical_formula_sum            'C20 H19 N5 O5 S'
_chemical_formula_weight         441.46
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
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_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 97.725(13)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.415(7)
_cell_length_b                   14.394(10)
_cell_length_c                   15.100(10)
_cell_measurement_reflns_used    5486
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      25.1
_cell_measurement_theta_min      1.4
_cell_volume                     2028(2)
_computing_cell_refinement       CrystalClear
_computing_data_collection       CrystalClear
_computing_data_reduction        CrystalClear
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'CrystalStructure 3.8'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      113(2)
_diffrn_detector_area_resol_mean 14.22
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Rigaku Saturn724 CCD'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  multilayer
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1316
_diffrn_reflns_av_sigmaI/netI    0.1338
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            16563
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         1.96
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.204
_exptl_absorpt_correction_T_max  0.9759
_exptl_absorpt_correction_T_min  0.9603
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   CrystalClear
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.446
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             920
_exptl_crystal_size_max          0.20
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_refine_diff_density_max         0.327
_refine_diff_density_min         -0.340
_refine_diff_density_rms         0.070
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     285
_refine_ls_number_reflns         3563
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.0944
_refine_ls_R_factor_gt           0.0615
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0081P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1126
_refine_ls_wR_factor_ref         0.1233
_reflns_number_gt                1712
_reflns_number_total             3563
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ra44119a.txt
_cod_data_source_block           shelx
_cod_depositor_comments
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The following automatic conversions were performed:

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/RSC/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_sg_symbol_H-M      P2(1)/c
_cod_database_code               7239259