Lewis acid mediated cyclization: synthesis of 2 spirocyclohexylindolines.
Kong, Xiang-Kai; Xiong, Zhi-Min; Zhi, Xiang; Meng, Xue-Ling; Zhao, Jing-Feng; Chen, Wen; Zhang, Hongbin; Organic & biomolecular chemistry 19 (2021) 4043–4047; doi:10.1039/d1ob00293g

data_7157996
_publ_section_title
;
 Lewis acid mediated cyclization: synthesis of 2 spirocyclohexylindolines.
;
_journal_issue                   18
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              4043
_journal_page_last               4047
_journal_paper_doi               10.1039/d1ob00293g
_journal_volume                  19
_journal_year                    2021
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C16 H21 N O4'
_chemical_formula_sum            'C16 H21 N O4'
_chemical_formula_weight         291.34
_space_group_crystal_system      tetragonal
_space_group_IT_number           78
_space_group_name_Hall           'P 4cw'
_space_group_name_H-M_alt        'P 43'
_atom_sites_solution_hydrogens   geom
_audit_block_doi                 10.5517/ccdc.csd.cc26s4gm
_audit_update_record
;
2020-12-08 deposited with the CCDC.	2021-03-29 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   16.2391(4)
_cell_length_b                   16.2391(4)
_cell_length_c                   5.8098(2)
_cell_measurement_reflns_used    9792
_cell_measurement_temperature    100.(2)
_cell_measurement_theta_max      72.3264
_cell_measurement_theta_min      2.7210
_cell_volume                     1532.09(8)
_computing_cell_refinement       'SAINT V8.38A (Bruker AXS Inc., 2017)'
_computing_data_collection       'Bruker Instrument Service vV6.2.9'
_computing_data_reduction        'SAINT V8.38A (Bruker AXS Inc., 2017)'
_computing_molecular_graphics    'shelXle (C.B. Huebschle, rev 882)'
_computing_structure_refinement  'SHELXL-2017/1 (Sheldrick, 2017)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100.(2)
_diffrn_detector_area_resol_mean 7.3910
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker D8 QUEST PHOTON II'
_diffrn_radiation_monochromator  'Helixos MX multilayer Optic'
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0353
_diffrn_reflns_av_unetI/netI     0.0280
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            13244
_diffrn_reflns_theta_full        72.32
_diffrn_reflns_theta_max         72.32
_diffrn_reflns_theta_min         2.72
_diffrn_source                   'Ius Diamond'
_diffrn_source_type              Microfocus
_exptl_absorpt_coefficient_mu    0.742
_exptl_absorpt_correction_T_max  0.94
_exptl_absorpt_correction_T_min  0.80
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 - Bruker AXS area detector scaling and absorption correction
;
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_density_diffrn    1.263
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             624
_exptl_crystal_size_max          0.660
_exptl_crystal_size_mid          0.120
_exptl_crystal_size_min          0.090
_refine_diff_density_max         0.123
_refine_diff_density_min         -0.182
_refine_ls_abs_structure_details
;

Flack x determined using 671 quotients [(I+)-(I-)]/[(I+)+(I-)]
(Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.01(12)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     195
_refine_ls_number_reflns         2367
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.0294
_refine_ls_R_factor_gt           0.0287
_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^)+(0.0403P)^2^+0.2748P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0725
_refine_ls_wR_factor_ref         0.0732
_reflns_number_gt                2323
_reflns_number_total             2367
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1ob00293g2.cif
_cod_data_source_block           zhb_kxk4
_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 7556 2019-12-06 15:28:31Z antanas 

 Adding full bibliography for 7157995--7158001.cif.
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_cod_original_cell_volume        1532.09(9)
_cod_database_code               7157996
_shelx_res_checksum              12938