Visible Light Photoredox Catalysis: Synthesis of Indazolo[2,3-a]quinolines from 2-(2-Nitrophenyl)-1,2,3,4-tetrahydroquinolines
Lin, Wen-Chung; Yang, Ding-Yah; Organic Letters 15 (2013) 4862–; doi:10.1021/ol402286d

data_1512349
_publ_section_title
;
 Visible Light Photoredox Catalysis: Synthesis of
 Indazolo[2,3-a]quinolines from
 2-(2-Nitrophenyl)-1,2,3,4-tetrahydroquinolines
;
_journal_issue                   18
_journal_name_full               'Organic Letters'
_journal_page_first              4862
_journal_paper_doi               10.1021/ol402286d
_journal_volume                  15
_journal_year                    2013
_chemical_formula_moiety         'C18 H18 N2 O4'
_chemical_formula_sum            'C18 H18 N2 O4'
_chemical_formula_weight         326.34
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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                 97.932(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   10.2180(7)
_cell_length_b                   17.6270(13)
_cell_length_c                   18.0314(13)
_cell_measurement_reflns_used    4424
_cell_measurement_temperature    297(2)
_cell_measurement_theta_max      24.656
_cell_measurement_theta_min      2.555
_cell_volume                     3216.6(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_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      297(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0466
_diffrn_reflns_av_sigmaI/netI    0.0470
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            18182
_diffrn_reflns_theta_full        26.04
_diffrn_reflns_theta_max         26.04
_diffrn_reflns_theta_min         1.62
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.096
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.404817
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.348
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelepiped
_exptl_crystal_F_000             1376
_exptl_crystal_size_max          0.52
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.687
_refine_diff_density_min         -0.211
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.999
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     441
_refine_ls_number_reflns         6348
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.999
_refine_ls_R_factor_all          0.0961
_refine_ls_R_factor_gt           0.0518
_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^)+(0.0873P)^2^+0.2778P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1407
_refine_ls_wR_factor_ref         0.1677
_reflns_number_gt                3687
_reflns_number_total             6348
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol402286d_si_002.cif
_cod_data_source_block           wc023m
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1512349