Synthesis of arene-functionalized fused heterocyclic scaffolds <i>via</i> a regioselective cascade 1,4-conjugate addition/5-<i>exo-dig</i> annulation strategy.
He, Xinwei; Wang, Demao; Liu, Yanan; Wu, Mengdi; Kong, Yangzilin; Tang, Qiang; Wang, Yiping; Fan, Chenli; Shang, Yongjia; Organic & biomolecular chemistry 21 (2023) 9159–9172; doi:10.1039/d3ob01572f

data_7159677
_publ_section_title
;
 Synthesis of arene-functionalized fused heterocyclic scaffolds <i>via</i>
 a regioselective cascade 1,4-conjugate addition/5-<i>exo-dig</i>
 annulation strategy.
;
_journal_issue                   46
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              9159
_journal_page_last               9172
_journal_paper_doi               10.1039/d3ob01572f
_journal_volume                  21
_journal_year                    2023
_chemical_formula_moiety         'C21 H16 O4'
_chemical_formula_sum            'C21 H16 O4'
_chemical_formula_weight         332.34
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2022-03-30
_audit_creation_method
;
Olex2 1.5
(compiled 2021.12.09 svn.r5202d8cf for OlexSys, GUI svn.r6439)
;
_audit_update_record
;
2023-09-18 deposited with the CCDC.	2023-10-31 downloaded from the CCDC.
;
_cell_angle_alpha                79.660(10)
_cell_angle_beta                 83.815(11)
_cell_angle_gamma                89.445(11)
_cell_formula_units_Z            4
_cell_length_a                   8.460(7)
_cell_length_b                   11.802(9)
_cell_length_c                   17.491(14)
_cell_measurement_reflns_used    3933
_cell_measurement_temperature    300.00
_cell_measurement_theta_max      23.087
_cell_measurement_theta_min      2.290
_cell_volume                     1708(2)
_computing_cell_refinement       'SAINT v8.37A (Bruker, 2015)'
_computing_data_collection       'Bruker SMART APEX II diffractrometer'
_computing_data_reduction        'SAINT v8.37A (Bruker, 2015)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2019/2 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      300.00
_diffrn_detector                 'CCD area detector'
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.972
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0428
_diffrn_reflns_av_unetI/netI     0.0646
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.972
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            19706
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.972
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.517
_diffrn_reflns_theta_min         1.190
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_current           30.0
_diffrn_source_power             1.5
_diffrn_source_target            Mo
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.089
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6119
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1284 before and 0.0521 after correction.
The Ratio of minimum to maximum transmission is 0.8207.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.292
_exptl_crystal_description       block
_exptl_crystal_F_000             696
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.19
_refine_diff_density_max         0.130
_refine_diff_density_min         -0.203
_refine_diff_density_rms         0.036
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.995
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     455
_refine_ls_number_reflns         7626
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.995
_refine_ls_R_factor_all          0.1211
_refine_ls_R_factor_gt           0.0545
_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^)+(0.0594P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1180
_refine_ls_wR_factor_ref         0.1415
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3872
_reflns_number_total             7626
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3ob01572f2.cif
_cod_data_source_block           220330a_0m_a
_cod_depositor_comments
'Adding full bibliography for 7159677--7159679.cif.'
_cod_database_code               7159677
_shelx_shelxl_version_number     2019/2
_shelx_estimated_absorpt_t_max   0.983
_shelx_estimated_absorpt_t_min   0.981
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups, All O(H) groups
2.a Secondary CH2 refined with riding coordinates:
 C8(H8A,H8B), C29(H29A,H29B)
2.b Aromatic/amide H refined with riding coordinates:
 C6(H6), C10(H10), C11(H11), C12(H12), C13(H13), C14(H14), C17(H17), C18(H18),
 C19(H19), C20(H20), C27(H27), C31(H31), C32(H32), C33(H33), C34(H34), C35(H35),
  C38(H38), C39(H39), C40(H40), C41(H41)
2.c Idealised Me refined as rotating group:
 C21(H21A,H21B,H21C), C42(H42A,H42B,H42C)
2.d Idealised tetrahedral OH refined as rotating group:
 O4(H4), O8(H8)
;
_shelx_res_checksum              18411
_olex2_submission_special_instructions 'No special instructions were received'