Transition-Metal-Free Synthesis of C-Glycosylated Phenanthridines via K<sub>2</sub>S<sub>2</sub>O<sub>8</sub>-Mediated Oxidative Radical Decarboxylation of Uronic Acids.
Zhou, Xin; Wang, Peng; Zhang, Li; Chen, Pengwei; Ma, Mingxu; Song, Ni; Ren, Sumei; Li, Ming; The Journal of organic chemistry 83 (2018) 588–603; doi:10.1021/acs.joc.7b02346

data_4033303
_publ_section_title
;
 Transition-Metal-Free Synthesis of C-Glycosylated Phenanthridines via
 K<sub>2</sub>S<sub>2</sub>O<sub>8</sub>-Mediated Oxidative Radical
 Decarboxylation of Uronic Acids.
;
_journal_issue                   2
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              588
_journal_page_last               603
_journal_paper_doi               10.1021/acs.joc.7b02346
_journal_volume                  83
_journal_year                    2018
_chemical_absolute_configuration syn
_chemical_formula_sum            'C27 H33 N O4'
_chemical_formula_weight         435.54
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                90.00
_cell_formula_units_Z            8
_cell_length_a                   12.0215(4)
_cell_length_b                   13.0351(5)
_cell_length_c                   29.9074(11)
_cell_measurement_reflns_used    9465
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.54
_cell_measurement_theta_min      3.08
_cell_volume                     4686.5(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  Bruker
_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  0.0571
_diffrn_reflns_av_sigmaI/netI    0.0206
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       38
_diffrn_reflns_limit_l_min       -38
_diffrn_reflns_number            145006
_diffrn_reflns_theta_full        27.54
_diffrn_reflns_theta_max         27.54
_diffrn_reflns_theta_min         3.08
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  0.9687
_exptl_absorpt_correction_T_min  0.9601
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.235
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1872
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.39
_refine_diff_density_max         0.524
_refine_diff_density_min         -0.322
_refine_diff_density_rms         0.068
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.7(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.128
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     585
_refine_ls_number_reflns         10769
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.128
_refine_ls_R_factor_all          0.0676
_refine_ls_R_factor_gt           0.0547
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0671P)^2^+2.5403P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1341
_refine_ls_wR_factor_ref         0.1467
_reflns_number_gt                9465
_reflns_number_total             10769
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            jo7b02346_si_002.cif
_cod_data_source_block           4c
_cod_depositor_comments
'Adding full bibliography for 4033302--4033304.cif.'
_cod_original_sg_symbol_H-M      'P 212121'
_cod_database_code               4033303