Synthesis of chromeno[4,3-b]quinolines and spirobenzofuran-3,3′-quinolines through silver-mediated Appel reaction/C–Br bond cleavage/double selective rearrangement sequence
Zhao, Hong-Ping; Ma, Xiao-Pan; Nie, Shu-Min; Xiao, Yuhong; Mo, Dong-Liang; Organic Chemistry Frontiers 6 (2019) 2334–; doi:10.1039/C9QO00417C

data_1554908
_publ_section_title
;
 Synthesis of chromeno[4,3-b]quinolines and
 spirobenzofuran-3,3&#x2032;-quinolines through silver-mediated Appel
 reaction/C--Br bond cleavage/double selective rearrangement sequence
;
_journal_issue                   14
_journal_name_full               'Organic Chemistry Frontiers'
_journal_page_first              2334
_journal_paper_doi               10.1039/C9QO00417C
_journal_volume                  6
_journal_year                    2019
_chemical_formula_moiety         'C24 H19 N O'
_chemical_formula_sum            'C24 H19 N O'
_chemical_formula_weight         337.40
_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
_atom_sites_solution_secondary   difmap
_audit_creation_date             2018-04-28
_audit_creation_method
;
Olex2 1.2
(compiled 2018.04.26 svn.r3504 for OlexSys, GUI svn.r5492)
;
_audit_update_record
;
2019-03-16 deposited with the CCDC.	2019-05-05 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 99.610(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.273(4)
_cell_length_b                   10.178(4)
_cell_length_c                   16.954(7)
_cell_measurement_reflns_used    8738
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      26.51
_cell_measurement_theta_min      2.34
_cell_volume                     1747.8(12)
_computing_cell_refinement       'SAINT v8.27A (Bruker, 2012)'
_computing_data_reduction        'SAINT v8.27A (Bruker, 2012)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'XS (Sheldrick, 2008)'
_diffrn_ambient_temperature      296.15
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0448
_diffrn_reflns_av_unetI/netI     0.0278
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            20541
_diffrn_reflns_theta_full        26.51
_diffrn_reflns_theta_max         26.51
_diffrn_reflns_theta_min         2.01
_diffrn_source                   'fine-focus sealed tube'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.078
_exptl_absorpt_correction_T_max  0.9861
_exptl_absorpt_correction_T_min  0.9740
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.282
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             712
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.227
_refine_diff_density_min         -0.184
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     235
_refine_ls_number_reflns         3606
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0504
_refine_ls_R_factor_gt           0.0408
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0590P)^2^+0.4400P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1109
_refine_ls_wR_factor_ref         0.1202
_reflns_number_gt                2972
_reflns_number_total             3606
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c9qo00417c2.cif
_cod_data_source_block           aaaa
_cod_original_cell_volume        1747.7(12)
_cod_database_code               1554908
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C17(H17A,H17B), C22(H22A,H22B)
2.b Aromatic/amide H refined with riding coordinates:
 C9(H9), C11(H11), C12(H12), C13(H13), C14(H14), C15(H15), C16(H16), C18(H18),
 C19(H19), C20(H20), C21(H21), C23(H23), C24(H24), C25(H25), C26(H26)
;
_olex2_submission_special_instructions 'No special instructions were received'