An asymmetric pericyclic cascade approach to 3-alkyl-3-aryloxindoles: generality, applications and mechanistic investigations.
Richmond, Edward; Ling, Kenneth B.; Duguet, Nicolas; Manton, Lois B.; Çelebi-Ölçüm, Nihan; Lam, Yu-Hong; Alsancak, Sezen; Slawin, Alexandra M. Z.; Houk, K. N.; Smith, Andrew D.; Organic & biomolecular chemistry 13 (2015) 1807–1817; doi:10.1039/c4ob02526a

data_7154248
_publ_section_title
;
 An asymmetric pericyclic cascade approach to 3-alkyl-3-aryloxindoles:
 generality, applications and mechanistic investigations.
;
_journal_issue                   6
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              1807
_journal_page_last               1817
_journal_paper_doi               10.1039/c4ob02526a
_journal_volume                  13
_journal_year                    2015
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C25 H25 N O2'
_chemical_formula_sum            'C25 H25 N O2'
_chemical_formula_weight         371.48
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      29
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_update_record
;
2014-10-13 deposited with the CCDC.
2014-12-03 downloaded from the CCDC.
;
_cell_angle_alpha                90.0000
_cell_angle_beta                 90.0000
_cell_angle_gamma                90.0000
_cell_formula_units_Z            4
_cell_length_a                   27.834(10)
_cell_length_b                   8.119(3)
_cell_length_c                   8.839(3)
_cell_measurement_reflns_used    5494
_cell_measurement_temperature    93
_cell_measurement_theta_max      25.35
_cell_measurement_theta_min      2.19
_cell_volume                     1997.5(12)
_computing_cell_refinement       'CrystalClear-SM Expert 2.0 rc13'
_computing_data_collection
'CrystalClear-SM Expert 2.0 rc13 (Rigaku, 2009)'
_computing_data_reduction        'CrystalClear-SM Expert 2.0 rc13'
_computing_molecular_graphics    'CrystalStructure 4.1'
_computing_publication_material  'CrystalStructure 4.1 (Rigaku, 2013)'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SIR2004 (Burla, et al., 2005)'
_diffrn_ambient_temperature      93
_diffrn_detector_area_resol_mean 14.629
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Rigaku Mercury70'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0573
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -33
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            9754
_diffrn_reflns_point_group_measured_fraction_full 0.934
_diffrn_reflns_point_group_measured_fraction_max 0.930
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         25.327
_diffrn_reflns_theta_min         2.509
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.078
_exptl_absorpt_correction_T_max  0.992
_exptl_absorpt_correction_T_min  0.559
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB (Rigaku, 1998)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.235
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             792.00
_exptl_crystal_size_max          0.180
_exptl_crystal_size_mid          0.180
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.25
_refine_diff_density_min         -0.29
_refine_ls_abs_structure_details
;
 Flack x determined using 1112 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   1.7(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.124
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     255
_refine_ls_number_reflns         3409
_refine_ls_number_restraints     1
_refine_ls_R_factor_gt           0.0692
_refine_ls_shift/su_max          0.004
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0812P)^2^+0.9527P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1792
_reflns_number_gt                3089
_reflns_number_total             3409
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            c4ob02526a4.cif
_cod_data_source_block           55
_cod_depositor_comments
'Adding full bibliography for 7154247--7154249.cif.'
_cod_original_cell_volume        1997.7(12)
_cod_database_code               7154248