Construction of indeno[1,2-a]fluorene via domino reaction of 1,3-indanedione and 3-arylideneindolin-2-ones or chalcones.
Cao, Jun; Sun, Jing; Yan, Chao-Guo; Organic & biomolecular chemistry 17 (2019) 9008–9013; doi:10.1039/c9ob01779h

data_7157098
_publ_section_title
;
 Construction of indeno[1,2-a]fluorene via domino reaction of
 1,3-indanedione and 3-arylideneindolin-2-ones or chalcones.
;
_journal_issue                   40
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              9008
_journal_page_last               9013
_journal_paper_doi               10.1039/c9ob01779h
_journal_volume                  17
_journal_year                    2019
_chemical_formula_moiety         'C37 H27 Br N2 O3'
_chemical_formula_sum            'C37 H27 Br N2 O3'
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_audit_update_record
;
2019-05-24 deposited with the CCDC.    2019-09-20 downloaded from the CCDC.
;
_cell_angle_alpha                109.822(4)
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_cell_volume                     1473.8(4)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
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_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
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_diffrn_reflns_Laue_measured_fraction_full 0.994
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_diffrn_reflns_theta_full        25.242
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_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0350P)^2^+1.2023P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_number_gt                2307
_reflns_number_total             5774
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9ob01779h2.cif
_cod_data_source_block           3b
_cod_depositor_comments
'Adding full bibliography for 7157095--7157106.cif.'
_cod_database_code               7157098
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.724
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_shelx_res_checksum              12665