Electrochemically-promoted synthesis of benzo[b]thiophene-1,1-dioxides via strained quaternary spirocyclization
Li, Rui-Tao; Yuan, Da-Fu; Ping, Meng-Qi; Zhu, Yu-Yi; Ni, Shao-Fei; Li, Ming; Wen, Li-Rong; Zhang, Lin-Bao; Chemical Science  (2022) –; doi:10.1039/D2SC01175A

data_1567394
_publ_section_title
;
 Electrochemically-promoted synthesis of benzo[b]thiophene-1,1-dioxides
 via strained quaternary spirocyclization
;
_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/D2SC01175A
_journal_year                    2022
_chemical_formula_moiety         'C21 H16 O2 S'
_chemical_formula_sum            'C21 H16 O2 S'
_chemical_formula_weight         332.40
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2020-11-16
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2020-11-17 deposited with the CCDC.	2022-07-28 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 94.841(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.7021(2)
_cell_length_b                   10.4858(2)
_cell_length_c                   18.6175(4)
_cell_measurement_reflns_used    9171
_cell_measurement_temperature    170.01(10)
_cell_measurement_theta_max      30.9940
_cell_measurement_theta_min      2.2690
_cell_volume                     1692.76(6)
_computing_cell_refinement       'CrysAlisPro 1.171.39.45i (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.39.45i (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.39.45i (Rigaku OD, 2018)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      170.01(10)
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.845
_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   -101.00  16.00   0.50    3.00    --  -11.60  45.00 150.00  234
  2  \w    -82.00  55.00   0.50    3.00    --  -11.60  45.00  90.00  274
  3  \w    -56.00 -29.00   0.50    3.00    --  -11.60  45.00  60.00   54
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB AFC10 (RCD3): fixed-chi single'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0320453000
_diffrn_orient_matrix_UB_12      -0.0291199000
_diffrn_orient_matrix_UB_13      -0.0322658000
_diffrn_orient_matrix_UB_21      0.0443124000
_diffrn_orient_matrix_UB_22      0.0410885000
_diffrn_orient_matrix_UB_23      -0.0204126000
_diffrn_orient_matrix_UB_31      0.0608087000
_diffrn_orient_matrix_UB_32      -0.0451573000
_diffrn_orient_matrix_UB_33      0.0021185000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0134
_diffrn_reflns_av_unetI/netI     0.0155
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.845
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            13579
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.845
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         31.050
_diffrn_reflns_theta_min         2.196
_diffrn_source                   'Rotating-anode X-ray tube'
_diffrn_source_type              'Rigaku (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.200
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.94432
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.45i (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.304
_exptl_crystal_description       block
_exptl_crystal_F_000             696
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.31
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.415
_refine_diff_density_min         -0.337
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     218
_refine_ls_number_reflns         4586
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0385
_refine_ls_R_factor_gt           0.0353
_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^)+(0.0543P)^2^+0.5517P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0988
_refine_ls_wR_factor_ref         0.1009
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4194
_reflns_number_total             4586
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2sc01175a2.cif
_cod_data_source_block           mx8880
_cod_database_code               1567394
_shelx_shelxl_version_number     2018/3
_chemical_oxdiff_formula         CHOS
_reflns_odcompleteness_completeness 99.81
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     27.42
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C2(H2), C4(H4), C5(H5), C10(H10), C11(H11), C12(H12), C13(H13), C14(H14),
 C17(H17), C18(H18), C19(H19), C20(H20), C21(H21)
2.b Idealised Me refined as rotating group:
 C7(H7A,H7B,H7C)
;
_shelx_res_checksum              36382
_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 1.118
_oxdiff_exptl_absorpt_empirical_full_min 0.874