Novel silver tetrafluoroborate catalyzed electrophilic cascade cyclization reaction: a facile approach to the synthesis of halo-substituted benzo[a]fluorenols.
Chen, Zhiyuan; Zeng, Mengjing; Yuan, Jianjun; Yang, Qin; Peng, Yiyuan; Organic letters 14 (2012) 3588–3591; doi:10.1021/ol301153t

data_1508277
_publ_section_title
;
 Novel silver tetrafluoroborate catalyzed electrophilic cascade
 cyclization reaction: a facile approach to the synthesis of
 halo-substituted benzo[a]fluorenols.
;
_journal_issue                   14
_journal_name_full               'Organic letters'
_journal_page_first              3588
_journal_page_last               3591
_journal_paper_doi               10.1021/ol301153t
_journal_volume                  14
_journal_year                    2012
_chemical_formula_sum            'C23 H15 I O'
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_cell_angle_gamma                90.00
_cell_formula_units_Z            8
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_cell_length_c                   7.364(2)
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_cell_volume                     3578.7(17)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
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_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -31
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_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         1.35
_exptl_absorpt_coefficient_mu    1.796
_exptl_absorpt_correction_T_max  0.8408
_exptl_absorpt_correction_T_min  0.7152
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_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.612
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1250P)^2^+27.6954P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2521
_refine_ls_wR_factor_ref         0.2632
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_reflns_number_total             3163
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_cod_data_source_file            ol301153t_si_002.cif
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_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 

 Adding full bibliography for 1508277--1508278.cif.
;
_cod_original_cell_volume        3578.7(18)
_cod_original_sg_symbol_H-M      Pccn
_cod_database_code               1508277