Construction of Dispiro-Indenone Scaffolds via Domino Cycloaddition Reactions of α,β-Unsaturated Aldimines with 2-Arylidene-1,3-indenediones and 2,2'-(Arylmethylene)bis(1,3-indenediones).
Yang, Wen-Juan; Fang, Hui-Lin; Sun, Jing; Yan, Chao-Guo; ACS omega 4 (2019) 13553–13569; doi:10.1021/acsomega.9b01960

data_4514983
_publ_section_title
;
 Construction of Dispiro-Indenone Scaffolds via Domino Cycloaddition
 Reactions of \a,\b-Unsaturated Aldimines with
 2-Arylidene-1,3-indenediones and
 2,2'-(Arylmethylene)bis(1,3-indenediones).
;
_journal_issue                   8
_journal_name_full               'ACS omega'
_journal_page_first              13553
_journal_page_last               13569
_journal_paper_doi               10.1021/acsomega.9b01960
_journal_volume                  4
_journal_year                    2019
_chemical_formula_moiety         'C47 H30 Br3 N O4'
_chemical_formula_sum            'C47 H30 Br3 N O4'
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_symmetry_space_group_name_Hall  '-P 2yn'
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_cell_volume                     4357.5(18)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
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_diffrn_radiation_source         'fine-focus sealed tube'
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_diffrn_reflns_av_unetI/netI     0.2154
_diffrn_reflns_Laue_measured_fraction_full 0.998
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_diffrn_reflns_theta_max         25.000
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_exptl_absorpt_correction_T_max  0.569
_exptl_absorpt_correction_T_min  0.513
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
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_exptl_crystal_description       block
_exptl_crystal_F_000             1824
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_exptl_crystal_size_min          0.200
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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^)+(0.1731P)^2^] where P=(Fo^2^+2Fc^2^)/3'
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_refine_ls_wR_factor_ref         0.3296
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_reflns_number_gt                2940
_reflns_number_total             7665
_reflns_threshold_expression     'I > 2\s(I)'
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_shelx_estimated_absorpt_t_max   0.603
_shelx_res_checksum              26686
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