Lewis Acid Catalyzed Annulation of Spirocyclic Donor-Acceptor Cyclopropanes with exo-Heterocyclic Olefins: Access to Highly Functionalized bis-Spirocyclopentane Oxindole Frameworks
Saha, Jaideep; Singh, Kuldeep; Pramanik, Sourav; Hamlin, Trevor A.; Mondal, Biplab; Das, Dinabandhu; Chemical Communications  (2019) –; doi:10.1039/C9CC03393A

data_7123554
_publ_section_title
;
 Lewis Acid Catalyzed Annulation of Spirocyclic Donor-Acceptor
 Cyclopropanes with exo-Heterocyclic Olefins: Access to Highly
 Functionalized bis-Spirocyclopentane Oxindole Frameworks
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C9CC03393A
_journal_year                    2019
_chemical_formula_sum            'C34 H29 N3 O2'
_chemical_formula_weight         511.60
_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   geom
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2019-04-29 deposited with the CCDC.    2019-05-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 111.210(8)
_cell_angle_gamma                90
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_cell_length_b                   18.779(4)
_cell_length_c                   14.234(4)
_cell_measurement_reflns_used    9910
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      33.13
_cell_measurement_theta_min      2.32
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_computing_cell_refinement       'Bruker SAINT'
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_computing_molecular_graphics    'X-Seed (Barbour 2017)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018 (Sheldrick, 2015)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Bruker APEX-III CMOS'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0418
_diffrn_reflns_av_unetI/netI     0.0315
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.989
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_diffrn_reflns_limit_h_min       -16
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_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.989
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_diffrn_reflns_theta_max         33.207
_diffrn_reflns_theta_min         2.292
_diffrn_source                   micro-focus
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.260
_exptl_crystal_description       plate
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_refine_ls_extinction_method     none
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_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0622
_refine_ls_R_factor_gt           0.0456
_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^)+(0.0607P)^2^+0.8238P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1159
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_reflns_number_gt                8168
_reflns_number_total             10227
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9cc03393a2.cif
_cod_data_source_block           Anti-5ea
_cod_original_cell_volume        2696.1(11)
_cod_database_code               7123554
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.983
_shelx_estimated_absorpt_t_max   0.994
_shelx_res_checksum              4612