An unexpected cascade reaction of 3-hydroxyoxindoles with coumarin-3-carboxylates to construct 2,3-dihydrobenzofuran spirooxindoles
Zhang, Kuan; Han, Hua-Bin; Wang, Lele; Zhang, Ziying; Wang, Qi-Lin; Zhang, Wenjing; Bu, Zhanwei; Chemical Communications  (2019) –; doi:10.1039/C9CC07114H

data_7124354
_publ_section_title
;
 An unexpected cascade reaction of 3-hydroxyoxindoles with
 coumarin-3-carboxylates to construct 2,3-dihydrobenzofuran spirooxindoles
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C9CC07114H
_journal_year                    2019
_chemical_formula_moiety         'C24 H20 N2 O3'
_chemical_formula_sum            'C24 H20 N2 O3'
_chemical_formula_weight         384.42
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_audit_creation_date             2019-09-07
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2019-09-07 deposited with the CCDC.    2019-10-18 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 97.147(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   18.878(3)
_cell_length_b                   10.2614(12)
_cell_length_c                   10.1973(10)
_cell_measurement_reflns_used    1430
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      25.40
_cell_measurement_theta_min      2.26
_cell_volume                     1960.0(4)
_computing_cell_refinement       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      150.0
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1170
_diffrn_reflns_av_unetI/netI     0.1035
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            17372
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.371
_diffrn_reflns_theta_min         2.175
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_correction_T_min  0.6778
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.1238 before and 0.0788 after correction. The Ratio of minimum to maximum transmission is 0.9089. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.303
_exptl_crystal_description       plate
_exptl_crystal_F_000             808
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.704
_refine_diff_density_min         -0.290
_refine_diff_density_rms         0.065
_refine_ls_extinction_coef       0.0125(15)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     268
_refine_ls_number_reflns         3995
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.1398
_refine_ls_R_factor_gt           0.0635
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0553P)^2^+0.6067P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1261
_refine_ls_wR_factor_ref         0.1635
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2194
_reflns_number_total             3995
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9cc07114h2.cif
_cod_data_source_block           1
_cod_database_code               7124354
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.997
_shelx_estimated_absorpt_t_min   0.984
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C15(H15)
2.b Secondary CH2 refined with riding coordinates:
 C16(H16A,H16B)
2.c Aromatic/amide H refined with riding coordinates:
 C5(H5), C6(H6), C7(H7), C8(H8), C10(H10), C11(H11), C12(H12), C13(H13),
 C20(H20), C21(H21), C22(H22), C23(H23), C24(H24)
2.d Idealised Me refined as rotating group:
 C18(H18A,H18B,H18C)
;
_olex2_submission_special_instructions 'No special instructions were received'