Organocatalysed one-pot three component synthesis of 3,3′-disubstituted oxindoles featuring an all-carbon quaternary center and spiro[2H-pyran-3,4′-indoline]
Nichinde, Chandrakant B.; Patil, Baliram R.; Chaudhari, Suryakant S.; Mali, Bhupendra P.; Gonnade, Rajesh G.; Kinage, Anil K.; RSC Advances 13 (2023) 13206–13212; doi:10.1039/D3RA00510K

data_7246698
_publ_section_title
;
 Organocatalysed one-pot three component synthesis of
 3,3&#x2032;-disubstituted oxindoles featuring an all-carbon quaternary
 center and spiro[2H-pyran-3,4&#x2032;-indoline]
;
_journal_issue                   19
_journal_name_full               'RSC Advances'
_journal_page_first              13206
_journal_page_last               13212
_journal_paper_doi               10.1039/D3RA00510K
_journal_volume                  13
_journal_year                    2023
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C14 H13 N3 O2'
_chemical_formula_sum            'C14 H13 N3 O2'
_chemical_formula_weight         255.27
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2022-12-08 deposited with the CCDC.	2023-03-02 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.7768(9)
_cell_length_b                   8.9125(9)
_cell_length_c                   15.8094(16)
_cell_measurement_reflns_used    9969
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      72.54
_cell_measurement_theta_min      5.70
_cell_volume                     1236.7(2)
_computing_cell_refinement       'SAINT (Bruker, 2016)'
_computing_data_collection       'APEX3 (Bruker, 2016)'
_computing_data_reduction        'SAINT (Bruker, 2016)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'Photon II CPAD Area Detector'
_diffrn_detector_area_resol_mean 7.39
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device       '\k-geometry diffractometer'
_diffrn_measurement_device_type  'Bruker D8 VENTURE Kappa Duo PHOTON II CPAD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'multilayer mirrors'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0413
_diffrn_reflns_av_unetI/netI     0.0230
_diffrn_reflns_Laue_measured_fraction_full 0.989
_diffrn_reflns_Laue_measured_fraction_max 0.987
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            18194
_diffrn_reflns_point_group_measured_fraction_full 0.992
_diffrn_reflns_point_group_measured_fraction_max 0.988
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         72.536
_diffrn_reflns_theta_min         5.698
_diffrn_source                   'micro-focus sealed tube'
_diffrn_source_type              'Incoatech I\mS HB'
_exptl_absorpt_coefficient_mu    0.774
_exptl_absorpt_correction_T_max  0.934
_exptl_absorpt_correction_T_min  0.899
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2006)'
_exptl_crystal_colour            COLOURLESS
_exptl_crystal_density_diffrn    1.371
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             536
_exptl_crystal_size_max          0.140
_exptl_crystal_size_mid          0.110
_exptl_crystal_size_min          0.090
_refine_diff_density_max         0.211
_refine_diff_density_min         -0.154
_refine_diff_density_rms         0.039
_refine_ls_abs_structure_details
;
 Flack x determined using 996 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.02(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     182
_refine_ls_number_reflns         2428
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0295
_refine_ls_R_factor_gt           0.0292
_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^)+(0.0476P)^2^+0.2083P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0758
_refine_ls_wR_factor_ref         0.0762
_reflns_Friedel_coverage         0.716
_reflns_Friedel_fraction_full    0.995
_reflns_Friedel_fraction_max     0.988
_reflns_number_gt                2389
_reflns_number_total             2428
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3ra00510k2.cif
_cod_data_source_block           5Aa
_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/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/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 8170 2020-07-09 18:12:32Z antanas 
;
_cod_database_code               7246698
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.899
_shelx_estimated_absorpt_t_max   0.934
_shelx_res_checksum              3693