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_1508278
_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            'C24 H18 F I O2'
_chemical_formula_weight         484.28
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_symmetry_space_group_name_Hall  '-P 1'
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_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                105.07(5)
_cell_angle_beta                 98.08(5)
_cell_angle_gamma                102.89(5)
_cell_formula_units_Z            2
_cell_length_a                   9.566(8)
_cell_length_b                   9.734(9)
_cell_length_c                   11.985(8)
_cell_measurement_reflns_used    923
_cell_measurement_temperature    293(2)
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_cell_measurement_theta_min      2.7072
_cell_volume                     1026.8(15)
_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 0.969
_diffrn_measured_fraction_theta_max 0.969
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
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_diffrn_radiation_type           MoK\a
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_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            4208
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         1.80
_exptl_absorpt_coefficient_mu    1.584
_exptl_absorpt_correction_T_max  0.7636
_exptl_absorpt_correction_T_min  0.6479
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            pink
_exptl_crystal_density_diffrn    1.566
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             480
_exptl_crystal_size_max          0.30
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_refine_ls_number_reflns         3516
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_refine_ls_R_factor_all          0.0983
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_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1804P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2173
_refine_ls_wR_factor_ref         0.2344
_reflns_number_gt                2614
_reflns_number_total             3516
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol301153t_si_003.cif
_cod_data_source_block           a20418b
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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        1026.9(14)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1508278