Rhodium-Catalyzed Cascade Oxidative Annulation Leading to Substituted Naphtho[1,8-bc]pyrans by Sequential Cleavage of C(sp2)-H/C(sp3)-H and C(sp2)-H/O-H Bonds
Xing Tan; Bingxian Liu; Xiangyu Li; Bin Li; Shansheng Xu; Haibin Song; Baiquan Wang; Journal of the American Chemical Society 134 (2012) 16163–16166; doi:10.1021/ja3075242

data_4118715
_publ_section_title
;
 Rhodium-Catalyzed Cascade Oxidative Annulation Leading to Substituted
 Naphtho[1,8-bc]pyrans by Sequential Cleavage of C(sp2)-H/C(sp3)-H and
 C(sp2)-H/O-H Bonds
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              16163
_journal_page_last               16166
_journal_paper_doi               10.1021/ja3075242
_journal_volume                  134
_journal_year                    2012
_chemical_formula_sum            'C37 H23 N O'
_chemical_formula_weight         497.56
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 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                 105.31(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.820(4)
_cell_length_b                   15.328(3)
_cell_length_c                   9.3790(19)
_cell_measurement_reflns_used    2383
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.8664
_cell_measurement_theta_min      2.2439
_cell_volume                     2609.6(10)
_computing_cell_refinement       crystalclear
_computing_data_collection       crystalclear
_computing_data_reduction        crystalclear
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'rigaku saturn'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0602
_diffrn_reflns_av_sigmaI/netI    0.1055
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            13246
_diffrn_reflns_theta_full        27.93
_diffrn_reflns_theta_max         27.93
_diffrn_reflns_theta_min         1.74
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.075
_exptl_absorpt_correction_T_max  0.9925
_exptl_absorpt_correction_T_min  0.9851
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   crystalclear
_exptl_crystal_density_diffrn    1.266
_exptl_crystal_F_000             1040
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.354
_refine_diff_density_min         -0.424
_refine_diff_density_rms         0.130
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   1(2)
_refine_ls_extinction_coef       0.0241(13)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.944
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     353
_refine_ls_number_reflns         5727
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      0.944
_refine_ls_R_factor_all          0.1260
_refine_ls_R_factor_gt           0.0614
_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^)+(0.0638P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1271
_refine_ls_wR_factor_ref         0.1529
_reflns_number_gt                2595
_reflns_number_total             5727
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja3075242_si_002_1.cif
_cod_data_source_block           3aa
_cod_original_cell_volume        2609.7(9)
_cod_database_code               4118715