Regioselective Synthesis of Elusive 4,9-Dihydro-1H-Carbazoles by Gold-Catalyzed Cycloisomerization of 3-Allenylmethylindoles
Estela Álvarez; Patricia García-García; Manuel A. Fernández-Rodríguez; Roberto Sanz; Journal of Organic Chemistry 78 (2013) 9758–9771; doi:10.1021/jo401388b

data_4028631
_publ_section_title
;
 Regioselective Synthesis of Elusive 4,9-Dihydro-1H-Carbazoles by
 Gold-Catalyzed Cycloisomerization of 3-Allenylmethylindoles
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              9758
_journal_page_last               9771
_journal_paper_doi               10.1021/jo401388b
_journal_volume                  78
_journal_year                    2013
_chemical_formula_moiety         'C23 H19 N'
_chemical_formula_sum            'C23 H19 N'
_chemical_formula_weight         309.39
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_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            4
_cell_length_a                   17.627(4)
_cell_length_b                   16.321(4)
_cell_length_c                   5.5951(12)
_cell_measurement_reflns_used    4331
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.30
_cell_measurement_theta_min      2.31
_cell_volume                     1609.7(6)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      173(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'omega 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  0.0689
_diffrn_reflns_av_sigmaI/netI    0.0327
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       6
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            14921
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         1.70
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.074
_exptl_absorpt_correction_T_max  0.993
_exptl_absorpt_correction_T_min  0.7530
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (SHELDRICK, 2001)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.277
_exptl_crystal_description       prism
_exptl_crystal_F_000             656
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.158
_refine_diff_density_min         -0.143
_refine_diff_density_rms         0.032
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -10(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.066
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     218
_refine_ls_number_reflns         1578
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.066
_refine_ls_R_factor_all          0.0359
_refine_ls_R_factor_gt           0.0337
_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^)+(0.0374P)^2^+0.4164P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0803
_refine_ls_wR_factor_ref         0.0828
_reflns_number_gt                1498
_reflns_number_total             1578
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo401388b_si_002.cif
_cod_data_source_block           datosm
_cod_original_sg_symbol_Hall     'P 2c -2n '
_cod_database_code               4028631