A cinchona alkaloid catalyzed enantioselective sulfa-Michael/aldol cascade reaction of isoindigos: construction of chiral bispirooxindole tetrahydrothiophenes with vicinal quaternary spirocenters.
Gui, Yong-Yuan; Yang, Jian; Qi, Liang-Wen; Wang, Xiao; Tian, Fang; Li, Xiao-Nian; Peng, Lin; Wang, Li-Xin; Organic & biomolecular chemistry 13 (2015) 6371–6379; doi:10.1039/c5ob00774g

data_7154443
_publ_section_title
;
 A cinchona alkaloid catalyzed enantioselective sulfa-Michael/aldol
 cascade reaction of isoindigos: construction of chiral bispirooxindole
 tetrahydrothiophenes with vicinal quaternary spirocenters.
;
_journal_issue                   22
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              6371
_journal_page_last               6379
_journal_paper_doi               10.1039/c5ob00774g
_journal_volume                  13
_journal_year                    2015
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C24 H24 Br2 N2 O3 S'
_chemical_formula_sum            'C24 H24 Br2 N2 O3 S'
_chemical_formula_weight         580.33
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-03-26 deposited with the CCDC.
2015-04-27 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.181(4)
_cell_length_b                   9.395(4)
_cell_length_c                   27.281(11)
_cell_measurement_reflns_used    9256
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.16
_cell_measurement_theta_min      2.29
_cell_volume                     2353.1(17)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1756
_diffrn_reflns_av_sigmaI/netI    0.1449
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            13144
_diffrn_reflns_theta_full        25.10
_diffrn_reflns_theta_max         25.10
_diffrn_reflns_theta_min         1.49
_exptl_absorpt_coefficient_mu    3.563
_exptl_absorpt_correction_T_max  0.5360
_exptl_absorpt_correction_T_min  0.5078
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.638
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1168
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.885
_refine_diff_density_min         -2.141
_refine_diff_density_rms         0.321
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.159(19)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.094
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     293
_refine_ls_number_reflns         4084
_refine_ls_number_restraints     834
_refine_ls_restrained_S_all      1.012
_refine_ls_R_factor_all          0.1828
_refine_ls_R_factor_gt           0.1472
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0469P)^2^+172.7663P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3251
_refine_ls_wR_factor_ref         0.3460
_reflns_number_gt                3080
_reflns_number_total             4084
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ob00774g2.cif
_cod_data_source_block           mo_wlx_gyy1_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 7154443.cif.
;
_cod_database_code               7154443