Domino reaction of bindone and 1,3-dipolarophiles for the synthesis of diverse spiro and fused indeno[1,2-<i>a</i>]fluorene-7,12-diones.
Liu, Dan; Liu, Xueyan; Sun, Jing; Han, Ying; Yan, Chao-Guo; Organic & biomolecular chemistry 20 (2022) 4964–4969; doi:10.1039/d2ob00815g

data_7158718
_publ_section_title
;
 Domino reaction of bindone and 1,3-dipolarophiles for the synthesis of
 diverse spiro and fused indeno[1,2-<i>a</i>]fluorene-7,12-diones.
;
_journal_issue                   24
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              4964
_journal_page_last               4969
_journal_paper_doi               10.1039/d2ob00815g
_journal_volume                  20
_journal_year                    2022
_chemical_formula_moiety         'C35 H22 N2 O3'
_chemical_formula_sum            'C35 H22 N2 O3'
_chemical_formula_weight         518.54
_space_group_crystal_system      monoclinic
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_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2022-02-23 deposited with the CCDC.	2022-05-30 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 91.436(5)
_cell_angle_gamma                90
_cell_formula_units_Z            4
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_cell_length_c                   18.985(3)
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_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.26
_cell_measurement_theta_min      2.50
_cell_volume                     2574.2(6)
_computing_cell_refinement       'Bruker SAINT'
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_computing_publication_material  'Bruker SHELXTL'
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_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0377
_diffrn_reflns_av_unetI/netI     0.0408
_diffrn_reflns_Laue_measured_fraction_full 0.992
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_diffrn_reflns_limit_h_max       12
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_diffrn_reflns_limit_l_max       23
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_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.992
_diffrn_reflns_theta_min         2.146
_exptl_absorpt_coefficient_mu    0.086
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6747
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            green
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_exptl_crystal_description       block
_exptl_crystal_F_000             1080
_exptl_crystal_size_max          0.280
_exptl_crystal_size_mid          0.220
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_refine_diff_density_max         0.202
_refine_diff_density_min         -0.167
_refine_diff_density_rms         0.036
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     362
_refine_ls_number_reflns         5023
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.0820
_refine_ls_R_factor_gt           0.0465
_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^)+(0.0447P)^2^+0.6412P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0943
_refine_ls_wR_factor_ref         0.1090
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3454
_reflns_number_total             5023
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2ob00815g2.cif
_cod_data_source_block           5a
_cod_depositor_comments
'Adding full bibliography for 7158713--7158721.cif.'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7158718
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.976
_shelx_estimated_absorpt_t_max   0.985
_shelx_res_checksum              14548
_shelx_hkl_checksum              73989