CAN-Mediated Oxidations for the Synthesis of Xanthones and Related Products
Myron M. Johnson; Jeremy M. Naidoo; Manuel A. Fernandes; Edwin M. Mmutlane; Willem A. L. van Otterlo; Charles B. de Koning; Journal of Organic Chemistry 75 (2010) 8701–8704; doi:10.1021/jo101873v

data_4025896
_publ_section_title
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 CAN-Mediated Oxidations for the Synthesis of Xanthones and Related
 Products
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_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              8701
_journal_page_last               8704
_journal_paper_doi               10.1021/jo101873v
_journal_volume                  75
_journal_year                    2010
_chemical_formula_moiety         'C18 H12 O4'
_chemical_formula_sum            'C18 H12 O4'
_chemical_formula_weight         292.28
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_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                 98.662(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   13.0183(7)
_cell_length_b                   13.0356(6)
_cell_length_c                   15.9224(7)
_cell_measurement_reflns_used    4159
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.16
_cell_measurement_theta_min      2.22
_cell_volume                     2671.2(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      173(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
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0773
_diffrn_reflns_av_sigmaI/netI    0.0653
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            19971
_diffrn_reflns_theta_full        28.00
_diffrn_reflns_theta_max         28.00
_diffrn_reflns_theta_min         1.89
_exptl_absorpt_coefficient_mu    0.103
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.454
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1216
_exptl_crystal_size_max          0.49
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.25
_refine_diff_density_max         1.129
_refine_diff_density_min         -0.306
_refine_diff_density_rms         0.101
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.983
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     399
_refine_ls_number_reflns         6440
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.983
_refine_ls_R_factor_all          0.1306
_refine_ls_R_factor_gt           0.0789
_refine_ls_shift/su_max          0.010
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1476P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1979
_refine_ls_wR_factor_ref         0.2383
_reflns_number_gt                3700
_reflns_number_total             6440
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo101873v_si_002.cif
_cod_data_source_block           8m_jn1_0s
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
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_cod_database_code               4025896