Convenient construction of dibenzo[b,d]furanes and 2,6-diaryl-4-(2-hydroxyphenyl)pyridines via domino reaction of pyridinium ylides with 2-aryl-3-nitrochromenes
Sun, Jing; Jiang, Wang; Yan, Chao-Guo; Organic Chemistry Frontiers 6 (2019) 1428–; doi:10.1039/C9QO00079H

data_1554731
_publ_section_title
;
 Convenient construction of dibenzo[b,d]furanes and
 2,6-diaryl-4-(2-hydroxyphenyl)pyridines via domino reaction of pyridinium
 ylides with 2-aryl-3-nitrochromenes
;
_journal_issue                   9
_journal_name_full               'Organic Chemistry Frontiers'
_journal_page_first              1428
_journal_paper_doi               10.1039/C9QO00079H
_journal_volume                  6
_journal_year                    2019
_chemical_formula_moiety         'C32 H20 N2 O6'
_chemical_formula_sum            'C32 H20 N2 O6'
_chemical_formula_weight         528.50
_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
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2019-01-17 deposited with the CCDC.	2019-03-05 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 107.329(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.7141(9)
_cell_length_b                   20.1653(17)
_cell_length_c                   12.3094(13)
_cell_measurement_reflns_used    7646
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      25.30
_cell_measurement_theta_min      2.22
_cell_volume                     2538.8(4)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0449
_diffrn_reflns_av_unetI/netI     0.0524
_diffrn_reflns_Laue_measured_fraction_full 0.992
_diffrn_reflns_Laue_measured_fraction_max 0.983
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            24605
_diffrn_reflns_point_group_measured_fraction_full 0.992
_diffrn_reflns_point_group_measured_fraction_max 0.983
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.577
_diffrn_reflns_theta_min         2.217
_exptl_absorpt_coefficient_mu    0.097
_exptl_absorpt_correction_T_max  0.981
_exptl_absorpt_correction_T_min  0.977
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.383
_exptl_crystal_description       block
_exptl_crystal_F_000             1096
_exptl_crystal_size_max          0.240
_exptl_crystal_size_mid          0.220
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.402
_refine_diff_density_min         -0.293
_refine_diff_density_rms         0.037
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     427
_refine_ls_number_reflns         5768
_refine_ls_number_restraints     429
_refine_ls_restrained_S_all      1.143
_refine_ls_R_factor_all          0.1205
_refine_ls_R_factor_gt           0.0617
_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^)+(0.0556P)^2^+0.9385P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1276
_refine_ls_wR_factor_ref         0.1499
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3406
_reflns_number_total             5768
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9qo00079h2.cif
_cod_data_source_block           3j
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               1554731
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.977
_shelx_estimated_absorpt_t_max   0.981
_shelx_res_checksum              27913
_shelx_hkl_checksum              86603