Sequential Organo and Metal Catalyzed Reaction Between 3-Pyrrolyloxindoles and Linear Nitroenynes: Access to Cyclic Aza-Spirooxindoles
Biswas, Subhankar; Purkayastha, Siddhartha Kumar; Guha, Ankur Kanti; Pan, Subhas Chandra; Chemical Communications  (2023) –; doi:10.1039/D3CC03713D

data_7132138
_publ_section_title
;
 Sequential Organo and Metal Catalyzed Reaction Between
 3-Pyrrolyloxindoles and Linear Nitroenynes: Access to Cyclic
 Aza-Spirooxindoles
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/D3CC03713D
_journal_year                    2023
_chemical_absolute_configuration R,S
_chemical_formula_sum            'C23 H18 Br N3 O3'
_chemical_formula_weight         464.31
_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   geom
_audit_creation_method           SHELXL-2019/1
_audit_update_record
;
2023-07-22 deposited with the CCDC.	2023-09-15 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.1820(6)
_cell_length_b                   10.2729(6)
_cell_length_c                   19.3413(12)
_cell_measurement_reflns_used    9807
_cell_measurement_temperature    297(2)
_cell_measurement_theta_max      25.09
_cell_measurement_theta_min      2.24
_cell_volume                     2023.1(2)
_computing_structure_refinement  'SHELXL-2019/1 (Sheldrick, 2019)'
_diffrn_ambient_temperature      297(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_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  0.0399
_diffrn_reflns_av_unetI/netI     0.0213
_diffrn_reflns_Laue_measured_fraction_full 0.993
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            48721
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        24.996
_diffrn_reflns_theta_max         24.996
_diffrn_reflns_theta_min         2.106
_exptl_absorpt_coefficient_mu    2.063
_exptl_absorpt_correction_T_max  0.7452
_exptl_absorpt_correction_T_min  0.5507
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 SADABS-2016/2 - Bruker AXS area detector scaling and absorption correction 
 --------------------------------------------------------------------------

 Reference: Krause, L., Herbst-Irmer, R., Sheldrick G.M. & Stalke D.,
 J. Appl. Cryst. 48 (2015) 3-10.
;
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.524
_exptl_crystal_description       Block
_exptl_crystal_F_000             944
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.296
_refine_diff_density_min         -0.401
_refine_diff_density_rms         0.032
_refine_ls_abs_structure_details
;
 Flack x determined using 1355 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.040(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.013
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     272
_refine_ls_number_reflns         3531
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.013
_refine_ls_R_factor_all          0.0255
_refine_ls_R_factor_gt           0.0228
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0350P)^2^+0.3910P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0585
_refine_ls_wR_factor_ref         0.0604
_reflns_Friedel_coverage         0.740
_reflns_Friedel_fraction_full    0.994
_reflns_Friedel_fraction_max     0.994
_reflns_number_gt                3323
_reflns_number_total             3531
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3cc03713d2.cif
_cod_data_source_block           SB-LNE-7-6Br_a
_cod_database_code               7132138
_shelx_shelxl_version_number     2019/1
_shelx_res_checksum              93516
_shelx_hkl_checksum              54772