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_7158713
_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         'C37 H23 N3 O4'
_chemical_formula_sum            'C37 H23 N3 O4'
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_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.
;
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_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
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_diffrn_reflns_av_R_equivalents  0.1433
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_diffrn_reflns_Laue_measured_fraction_max 0.998
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_diffrn_reflns_point_group_measured_fraction_max 0.998
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_diffrn_reflns_theta_max         25.998
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_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6451
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_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            green
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_exptl_crystal_description       block
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_exptl_crystal_size_max          0.260
_exptl_crystal_size_mid          0.240
_exptl_crystal_size_min          0.180
_refine_diff_density_max         0.279
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_refine_diff_density_rms         0.052
_refine_ls_extinction_coef       0.0020(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    constr
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_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.1964
_refine_ls_R_factor_gt           0.0859
_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^)+(0.1301P)^2^+3.0137P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2212
_refine_ls_wR_factor_ref         0.2761
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3077
_reflns_number_total             6945
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2ob00815g2.cif
_cod_data_source_block           3b
_cod_depositor_comments
'Adding full bibliography for 7158713--7158721.cif.'
_cod_original_cell_volume        7072.2(11)
_cod_database_code               7158713
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.982
_shelx_estimated_absorpt_t_max   0.987
_shelx_res_checksum              85995
_shelx_hkl_checksum              50177
_shelx_fab_checksum              94970