Synthesis of dithienofurans via cascade copper catalysed dual C–S coupling and ring closure reactions under mild conditions
Zhou, Lu; Chen, Zhaopeng; Li, Jiahui; Li, Baolin; RSC Advances 11 (2021) 34071–34078; doi:10.1039/D1RA06881D

data_7243787
_publ_section_title
;
 Synthesis of dithienofurans via cascade copper catalysed dual C--S
 coupling and ring closure reactions under mild conditions
;
_journal_issue                   54
_journal_name_full               'RSC Advances'
_journal_page_first              34071
_journal_page_last               34078
_journal_paper_doi               10.1039/D1RA06881D
_journal_volume                  11
_journal_year                    2021
_chemical_formula_moiety         'C20 H12 O S2'
_chemical_formula_sum            'C20 H12 O S2'
_chemical_formula_weight         332.42
_chemical_name_common            2,6-diphenyldithieno[3,2-b:2',3'-d]furan
_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'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2021-04-09
_audit_creation_method
;
Olex2 1.3
(compiled 2020.07.31 svn.rc2a77460 for OlexSys, GUI svn.r6145)
;
_audit_update_record
;
2021-10-12 deposited with the CCDC.	2021-10-12 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 97.279(14)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   16.763(2)
_cell_length_b                   5.6910(10)
_cell_length_c                   7.7824(11)
_cell_measurement_reflns_used    1047
_cell_measurement_temperature    150.00(10)
_cell_measurement_theta_max      27.7300
_cell_measurement_theta_min      2.4400
_cell_volume                     736.44(19)
_computing_cell_refinement       'CrysAlisPro 1.171.38.43f (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.43f (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.43f (Rigaku OD, 2015)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXS  (Sheldrick, 2008)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      150.00(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 10.5368
_diffrn_detector_type            AtlasS2
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.883
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w    -80.00  16.00   0.75    2.00    --  -11.27 -57.00-180.00  128
  2  \w    -26.00  53.50   0.75    2.00    --  -11.27   0.00-180.00  106
  3  \w     69.00  96.00   0.75    2.00    --   11.90-178.00  30.00   36
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, AtlasS2'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0303270000
_diffrn_orient_matrix_UB_12      0.0420222000
_diffrn_orient_matrix_UB_13      -0.0645495000
_diffrn_orient_matrix_UB_21      -0.0283255000
_diffrn_orient_matrix_UB_22      -0.0034557000
_diffrn_orient_matrix_UB_23      0.0602932000
_diffrn_orient_matrix_UB_31      0.0100299000
_diffrn_orient_matrix_UB_32      0.1173739000
_diffrn_orient_matrix_UB_33      0.0248258000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0241
_diffrn_reflns_av_unetI/netI     0.0462
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.883
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            3848
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.883
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.298
_diffrn_reflns_theta_min         2.450
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Mo) X-ray Source'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.362
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.81337
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.43f (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            yellow
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.499
_exptl_crystal_description       block
_exptl_crystal_F_000             344
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.303
_refine_diff_density_min         -0.333
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     184
_refine_ls_number_reflns         1776
_refine_ls_number_restraints     186
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.0940
_refine_ls_R_factor_gt           0.0610
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0441P)^2^+0.5665P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1248
_refine_ls_wR_factor_ref         0.1449
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1253
_reflns_number_total             1776
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1ra06881d2.cif
_cod_data_source_block           2959
_cod_original_cell_volume        736.4(2)
_cod_database_code               7243787
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.958
_shelx_estimated_absorpt_t_min   0.951
_reflns_odcompleteness_completeness 99.52
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.32
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2. Rigid body (RIGU) restrains
 C6, S2, C8, C5, C7, C15, C4, C16, C20, S1, C3, O1, C17, C19, C1, C2, C18, C9,
 C10, C14, C11, C13, C12
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
3. Others
 Fixed Sof: S1(0.5) S2(0.5) O1(0.5) C1(0.5) C2(0.5) H2(0.5) C3(0.5) C4(0.5)
 C5(0.5) C6(0.5) C7(0.5) H7(0.5) C8(0.5) C9(0.5) C10(0.5) H10(0.5) C11(0.5)
 H11(0.5) C12(0.5) H12(0.5) C13(0.5) H13(0.5) C14(0.5) H14(0.5) C15(0.5)
 C16(0.5) H16(0.5) C17(0.5) H17(0.5) C18(0.5) H18(0.5) C19(0.5) H19(0.5)
 C20(0.5) H20(0.5)
4.a Aromatic/amide H refined with riding coordinates:
 C2(H2), C7(H7), C10(H10), C11(H11), C12(H12), C13(H13), C14(H14), C16(H16),
 C17(H17), C18(H18), C19(H19), C20(H20)
4.b Fitted hexagon refined as free rotating group:
 C9(C10,C11,C12,C13,C14), C15(C16,C17,C18,C19,C20)
;
_shelx_res_checksum              17797
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.233
_oxdiff_exptl_absorpt_empirical_full_min 0.736