Chemistry of 9,10-phenanthrenequinone revisited: iron(iii) chloride catalyzed reactions of 9,10-phenanthrenequinone with acyclic and cyclic ketones provide furan annulated products
Surya Prakash Rao, H.; Vijjapu, Satish; RSC Advances 2 (2012) 6773–; doi:10.1039/c2ra20499a

data_7238639
_publ_section_title
;
 Chemistry of 9,10-phenanthrenequinone revisited: iron(iii) chloride
 catalyzed reactions of 9,10-phenanthrenequinone with acyclic and cyclic
 ketones provide furan annulated products
;
_journal_issue                   17
_journal_name_full               'RSC Advances'
_journal_page_first              6773
_journal_paper_doi               10.1039/c2ra20499a
_journal_volume                  2
_journal_year                    2012
_chemical_formula_moiety         'C20 H16 O2'
_chemical_formula_sum            'C20 H16 O2'
_chemical_formula_weight         288.33
_chemical_name_common
10,11,12,13-Tetrahydrophenanthro(9,10-b)benzofuran-13-ol
_chemical_name_systematic
;
10,11,12,13-Tetrahydrophenanthro[9,10-b]benzofuran-13-ol
;
_space_group_IT_number           148
_space_group_name_Hall           '-R 3'
_space_group_name_H-M_alt        'R -3 :H'
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_H-M   'R -3 :H'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            18
_cell_length_a                   17.7499(6)
_cell_length_b                   17.7499(6)
_cell_length_c                   24.5070(8)
_cell_measurement_reflns_used    3048
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      29.1492
_cell_measurement_theta_min      2.7709
_cell_volume                     6686.7(4)
_computing_cell_refinement       'CrysAlis RED (Oxford Diffraction, 2009)'
_computing_data_collection       'CrysAlis CCD (Oxford Diffraction, 2009)'
_computing_data_reduction        'CrysAlis RED (Oxford Diffraction, 2009)'
_computing_molecular_graphics
'<i>ORTEP-3 for Windows</i> (Farrugia, 1997) and PLATON (Spek, 2009)'
_computing_publication_material  '<i>PLATON</i> (Spek, 2009)'
_computing_structure_refinement  '<i>SHELXL97</i> (Sheldrick, 2008)'
_computing_structure_solution    '<i>SHELXS97</i> (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 15.9821
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Xcalibur, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0149
_diffrn_reflns_av_sigmaI/netI    0.0232
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            4838
_diffrn_reflns_theta_full        24.97
_diffrn_reflns_theta_max         24.97
_diffrn_reflns_theta_min         2.78
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  0.966
_exptl_absorpt_correction_T_min  0.957
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.44 (release 25-10-2010 CrysAlis171 .NET)
(compiled Oct 25 2010,18:11:34)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.289
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2736
_exptl_crystal_size_max          0.54
_exptl_crystal_size_mid          0.48
_exptl_crystal_size_min          0.42
_refine_diff_density_max         0.404
_refine_diff_density_min         -0.206
_refine_diff_density_rms         0.037
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.923
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     200
_refine_ls_number_reflns         2613
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.923
_refine_ls_R_factor_all          0.0529
_refine_ls_R_factor_gt           0.0385
_refine_ls_shift/su_max          0.023
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1177
_refine_ls_wR_factor_ref         0.1257
_reflns_number_gt                1992
_reflns_number_total             2613
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ra20499a.txt
_cod_data_source_block           3g
_cod_original_sg_symbol_H-M      'R -3'
_cod_database_code               7238639