Preparation of Spiro[indene-1,1'-isoindolin]-3'-ones via Sulfuric Acid-Promoted Cascade Cyclization.
Sun, Lang; Liu, Peng; Wang, Jing; Lu, Ping; Wang, Yanguang; The Journal of organic chemistry 82 (2017) 8407–8418; doi:10.1021/acs.joc.7b00958

data_4032713
_publ_section_title
;
 Preparation of Spiro[indene-1,1'-isoindolin]-3'-ones via Sulfuric
 Acid-Promoted Cascade Cyclization.
;
_journal_issue                   16
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              8407
_journal_page_last               8418
_journal_paper_doi               10.1021/acs.joc.7b00958
_journal_volume                  82
_journal_year                    2017
_chemical_formula_moiety         'C22 H15 N O'
_chemical_formula_sum            'C22 H15 N O'
_chemical_formula_weight         309.35
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2014-11-13
_audit_creation_method
;
Olex2 1.2
(compiled 2014.03.20 svn.r2914 for OlexSys, GUI svn.r4816)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 94.890(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.8756(7)
_cell_length_b                   19.3954(11)
_cell_length_c                   10.7433(7)
_cell_measurement_reflns_used    1915
_cell_measurement_temperature    171.4
_cell_measurement_theta_max      29.5259
_cell_measurement_theta_min      3.1043
_cell_volume                     1842.7(2)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.11 (release 16-05-2011 CrysAlis171 .NET)
(compiled May 16 2011,17:55:39)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.11 (release 16-05-2011 CrysAlis171 .NET)
(compiled May 16 2011,17:55:39)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.11 (release 16-05-2011 CrysAlis171 .NET)
(compiled May 16 2011,17:55:39)
;
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      171.4
_diffrn_detector_area_resol_mean 10.3592
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Xcalibur, Atlas, Gemini ultra'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_UB_11      0.0628165000
_diffrn_orient_matrix_UB_12      0.0151895000
_diffrn_orient_matrix_UB_13      -0.0261377000
_diffrn_orient_matrix_UB_21      0.0175182000
_diffrn_orient_matrix_UB_22      -0.0321839000
_diffrn_orient_matrix_UB_23      -0.0266406000
_diffrn_orient_matrix_UB_31      -0.0467046000
_diffrn_orient_matrix_UB_32      0.0083614000
_diffrn_orient_matrix_UB_33      -0.0547735000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0337
_diffrn_reflns_av_unetI/netI     0.0514
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            7509
_diffrn_reflns_theta_full        25.34
_diffrn_reflns_theta_max         25.34
_diffrn_reflns_theta_min         3.11
_diffrn_source                   'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.068
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.89857
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.11 (release 16-05-2011 CrysAlis171 .NET)
(compiled May 16 2011,17:55:39)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.115
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.2
_platon_squeeze_details
;
;
_refine_diff_density_max         0.273
_refine_diff_density_min         -0.194
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         3363
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          0.0744
_refine_ls_R_factor_gt           0.0551
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1089P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1623
_refine_ls_wR_factor_ref         0.1789
_reflns_number_gt                2453
_reflns_number_total             3363
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo7b00958_si_002.cif
_cod_data_source_block           141113_sl493_086
_cod_database_code               4032713
_chemical_oxdiff_formula         'c10 h10 n3 o8'
_reflns_odcompleteness_completeness 99.56
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.32
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All N(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 N1(H1), C1(H1A), C2(H2), C3(H3), C4(H4), C10(H10), C11(H11), C12(H12),
 C13(H13), C16(H16), C18(H18), C19(H19), C20(H20), C21(H21), C22(H22)
;