Approach to Construct Polysubstituted 1,2-Dihydronaphtho[2,1-b]furans and Their Aerobic Oxidative Aromatization
Congde Huo; Xiaolan Xu; Jinzhu An; Xiaodong Jia; Xicun Wang; Cheng Wang; Journal of Organic Chemistry 77 (2012) 8310–8316; doi:10.1021/jo300827s

data_4027481
_publ_section_title
;
 Approach to Construct Polysubstituted 1,2-Dihydronaphtho[2,1-b]furans and
 Their Aerobic Oxidative Aromatization
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              8310
_journal_page_last               8316
_journal_paper_doi               10.1021/jo300827s
_journal_volume                  77
_journal_year                    2012
_chemical_formula_sum            'C28 H24 O5'
_chemical_formula_weight         440.47
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 99.165(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.598(8)
_cell_length_b                   5.885(7)
_cell_length_c                   24.320(3)
_cell_measurement_reflns_used    2521
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      22.87
_cell_measurement_theta_min      2.31
_cell_volume                     2204(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0539
_diffrn_reflns_av_sigmaI/netI    0.0791
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            15036
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.31
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_T_max  0.9839
_exptl_absorpt_correction_T_min  0.9777
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.327
_exptl_crystal_description       block
_exptl_crystal_F_000             928
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.169
_refine_diff_density_min         -0.204
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     301
_refine_ls_number_reflns         4079
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0874
_refine_ls_R_factor_gt           0.0502
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+0.9227P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1078
_refine_ls_wR_factor_ref         0.1297
_reflns_number_gt                2617
_reflns_number_total             4079
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo300827s_si_002.cif
_cod_data_source_block           p21c
_cod_original_cell_volume        2204(4)
_cod_database_code               4027481