Direct sequential C-H iodination/organoyl-thiolation for the benzenoid A-ring modification of quinonoid deactivated systems: a new protocol for potent trypanocidal quinones.
Jardim, Guilherme A. M.; Oliveira, Willian X. C.; de Freitas, Rossimiriam P.; Menna-Barreto, Rubem F S; Silva, Thaissa L.; Goulart, Marilia O. F.; da Silva Júnior, Eufrânio N; Organic & biomolecular chemistry 16 (2018) 1686–1691; doi:10.1039/c8ob00196k

data_7156109
_publ_section_title
;
 Direct sequential C-H iodination/organoyl-thiolation for the benzenoid
 A-ring modification of quinonoid deactivated systems: a new protocol for
 potent trypanocidal quinones.
;
_journal_issue                   10
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              1686
_journal_page_last               1691
_journal_paper_doi               10.1039/c8ob00196k
_journal_volume                  16
_journal_year                    2018
_chemical_formula_moiety         'C12 H4 F6 O2 S2'
_chemical_formula_sum            'C12 H4 F6 O2 S2'
_chemical_formula_weight         358.27
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2017-11-17 deposited with the CCDC.
2018-02-08 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 97.9490(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   4.67670(10)
_cell_length_b                   19.3071(3)
_cell_length_c                   14.5648(2)
_cell_measurement_reflns_used    6243
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      66.4230
_cell_measurement_theta_min      3.8090
_cell_volume                     1302.47(4)
_computing_cell_refinement       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SuperFlip (Palatinus & Chapius, 2007)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 10.4186
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Xcalibur, Atlas, Gemini ultra'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0680
_diffrn_reflns_av_unetI/netI     0.0368
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            11706
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        66.544
_diffrn_reflns_theta_max         66.544
_diffrn_reflns_theta_min         3.825
_diffrn_source                   'fine-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    4.489
_exptl_absorpt_correction_T_max  0.808
_exptl_absorpt_correction_T_min  0.366
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.41 (Rigaku Oxford Diffraction, 2015)
Analytical numeric absorption correction using a multifaceted crystal
                        model based on expressions derived by R.C. Clark & J.S. Reid.
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.827
_exptl_crystal_description       Needle
_exptl_crystal_F_000             712
_exptl_crystal_size_max          0.488
_exptl_crystal_size_mid          0.079
_exptl_crystal_size_min          0.051
_refine_diff_density_max         0.233
_refine_diff_density_min         -0.334
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     199
_refine_ls_number_reflns         2307
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0420
_refine_ls_R_factor_gt           0.0347
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0518P)^2^+0.2550P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0874
_refine_ls_wR_factor_ref         0.0937
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1984
_reflns_number_total             2307
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8ob00196k2.cif
_cod_data_source_block           shelx_CCDC5
_cod_depositor_comments
'Adding full bibliography for 7156104--7156114.cif.'
_cod_database_code               7156109
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              73261