Diversity-oriented synthesis of benzofuro[3,2-b]pyridine derivatives from aurone-derived α,β-unsaturated imines and activated terminal alkynes.
Cheng, Bin; Li, Hui; Zhu, Xuecheng; Zhang, Xinping; He, Yixuan; Sun, Haiyan; Wang, Taimin; Zhai, Hongbin; Chemical communications (Cambridge, England) 57 (2021) 7701–7704; doi:10.1039/d1cc02477a

data_7128620
_publ_section_title
;
 Diversity-oriented synthesis of benzofuro[3,2-b]pyridine derivatives from
 aurone-derived \a,\b-unsaturated imines and activated terminal alkynes.
;
_journal_issue                   62
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              7701
_journal_page_last               7704
_journal_paper_doi               10.1039/d1cc02477a
_journal_volume                  57
_journal_year                    2021
_chemical_formula_moiety         'C24 H19 N O5 S2'
_chemical_formula_sum            'C24 H19 N O5 S2'
_chemical_formula_weight         465.52
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2021-01-27
_audit_creation_method
;
Olex2 1.3
(compiled 2020.02.04 svn.rd84adfe8 for OlexSys, GUI svn.r6032)
;
_audit_update_record
;
2021-03-26 deposited with the CCDC.	2021-07-06 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 123.3760(10)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   23.6852(7)
_cell_length_b                   10.0753(3)
_cell_length_c                   21.4888(5)
_cell_measurement_reflns_used    7855
_cell_measurement_temperature    200.0
_cell_measurement_theta_max      28.709
_cell_measurement_theta_min      2.780
_cell_volume                     4282.3(2)
_computing_cell_refinement       'SAINT V8.38A (Bruker, 2018)'
_computing_data_reduction        'SAINT V8.38A (Bruker, 2018)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2017/1 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      200.0
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0621
_diffrn_reflns_av_unetI/netI     0.0464
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       31
_diffrn_reflns_limit_h_min       -32
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            26265
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.738
_diffrn_reflns_theta_min         2.061
_diffrn_source_current           1.0
_diffrn_source_power             0.05
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.287
_exptl_absorpt_correction_T_max  0.7458
_exptl_absorpt_correction_T_min  0.6737
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1542 before and 0.0655 after correction.
The Ratio of minimum to maximum transmission is 0.9033.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.444
_exptl_crystal_description       block
_exptl_crystal_F_000             1936
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.3
_refine_diff_density_max         0.285
_refine_diff_density_min         -0.354
_refine_diff_density_rms         0.057
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     291
_refine_ls_number_reflns         5521
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0659
_refine_ls_R_factor_gt           0.0459
_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^)+(0.0467P)^2^+3.4002P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1055
_refine_ls_wR_factor_ref         0.1188
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4219
_reflns_number_total             5521
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1cc02477a2.cif
_cod_data_source_block           314_cb_0m
_cod_depositor_comments
'Adding full bibliography for 7128620--7128621.cif.'
_cod_database_code               7128620
_shelx_shelxl_version_number     2017/1
_shelx_estimated_absorpt_t_max   0.919
_shelx_estimated_absorpt_t_min   0.870
_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 Ternary CH refined with riding coordinates:
 C7(H7)
2.b Aromatic/amide H refined with riding coordinates:
 C4(H4), C9(H9), C10(H10), C11(H11), C14(H14), C15(H15), C16(H16), C17(H17),
 C19(H19), C20(H20), C22(H22), C23(H23)
2.c Idealised Me refined as rotating group:
 C1(H1A,H1B,H1C), C24(H24A,H24B,H24C)
;
_shelx_res_checksum              16944
_olex2_submission_special_instructions 'No special instructions were received'