Palladium-catalysed decarboxylative nitrile insertion via C-H activation or self-coupling of indole-2-carboxylic acids: a new route to indolocarbolines and triindoles
R. N. Prasad Tulichala; K. C. Kumara Swamy; Chem.Commun. 51 (2015) 12008–; doi:10.1039/C5cc03160e

data_7117509
_publ_section_title
;
 Palladium-catalysed decarboxylative nitrile insertion via C-H activation
 or self-coupling of indole-2-carboxylic acids: a new route to
 indolocarbolines and triindoles
;
_journal_name_full               Chem.Commun.
_journal_page_first              12008
_journal_paper_doi               10.1039/C5cc03160e
_journal_volume                  51
_journal_year                    2015
_chemical_formula_sum            'C26 H21 N3'
_chemical_formula_weight         375.46
_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
_audit_update_record
;
2014-10-16 deposited with the CCDC.
2015-06-16 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 105.921(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.1017(10)
_cell_length_b                   20.7038(19)
_cell_length_c                   7.3429(6)
_cell_measurement_temperature    298(2)
_cell_volume                     1915.4(3)
_computing_cell_refinement       'Bruker FRAMBO'
_computing_data_collection       'Bruker FRAMBO'
_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      293(2)
_diffrn_measured_fraction_theta_full 0.964
_diffrn_measured_fraction_theta_max 0.964
_diffrn_measurement_device_type  'multiwire proportional'
_diffrn_measurement_method       'phi and 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  0.0193
_diffrn_reflns_av_sigmaI/netI    0.0343
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -5
_diffrn_reflns_number            4657
_diffrn_reflns_theta_full        29.22
_diffrn_reflns_theta_max         24.71
_diffrn_reflns_theta_min         3.05
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.302
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             792
_refine_diff_density_max         0.147
_refine_diff_density_min         -0.164
_refine_diff_density_rms         0.033
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     265
_refine_ls_number_reflns         3032
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0771
_refine_ls_R_factor_gt           0.0507
_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^)+(0.0635P)^2^+0.1189P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1190
_refine_ls_wR_factor_ref         0.1328
_reflns_number_gt                2100
_reflns_number_total             3032
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5cc03160e2-1.cif
_cod_data_source_block           Compound-15
_cod_original_sg_symbol_H-M      'P2(1)/c  '
_cod_database_code               7117509