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_1512356
_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         'C19 H17 N3 O4'
_chemical_formula_sum            'C19 H17 N3 O4'
_chemical_formula_weight         351.36
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   12.3580(5)
_cell_length_b                   11.8372(5)
_cell_length_c                   22.9929(12)
_cell_measurement_reflns_used    2050
_cell_measurement_temperature    297(2)
_cell_measurement_theta_max      29.0472
_cell_measurement_theta_min      2.9635
_cell_volume                     3363.5(3)
_computing_cell_refinement
; 
CrysAlis RED, Oxford Diffraction Ltd., 
Version 1.171.32.29 (release 10-06-2008 CrysAlis171 .NET) 
(compiled Jun 10 2008,16:49:55) 
;
_computing_data_collection
; 
CrysAlis CCD, Oxford Diffraction Ltd., 
Version 1.171.32.29 (release 10-06-2008 CrysAlis171 .NET) 
(compiled Jun 10 2008,16:49:55) 
;
_computing_data_reduction
; 
CrysAlis RED, Oxford Diffraction Ltd., 
Version 1.171.32.29 (release 10-06-2008 CrysAlis171 .NET) 
(compiled Jun 10 2008,16:49:55) 
;
_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 0.872
_diffrn_measurement_device_type  'CCD detector'
_diffrn_measurement_method       '\w 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  0.0258
_diffrn_reflns_av_sigmaI/netI    0.0386
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            9802
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         29.11
_diffrn_reflns_theta_min         2.97
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.98985
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.19 (release 27-10-2011 CrysAlis171 .NET)
(compiled Oct 27 2011,15:02:11)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.388
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelepiped
_exptl_crystal_F_000             1472
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.146
_refine_diff_density_min         -0.185
_refine_diff_density_rms         0.036
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.031
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     235
_refine_ls_number_reflns         3947
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.0903
_refine_ls_R_factor_gt           0.0517
_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^)+(0.0521P)^2^+0.4961P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1092
_refine_ls_wR_factor_ref         0.1284
_reflns_number_gt                2586
_reflns_number_total             3947
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol402286d_si_009.cif
_cod_data_source_block           wc273
_cod_database_code               1512356