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_7117510
_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            'C30 H27 N3 O3'
_chemical_formula_weight         477.55
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   21.214(3)
_cell_length_b                   8.2654(11)
_cell_length_c                   27.017(4)
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      21.86
_cell_measurement_theta_min      2.44
_cell_volume                     4737.2(12)
_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      298(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       '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  0.0787
_diffrn_reflns_av_sigmaI/netI    0.0479
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            43207
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.92
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.339
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             2016
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.167
_refine_diff_density_min         -0.146
_refine_diff_density_rms         0.034
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   1.1(12)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.056
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     661
_refine_ls_number_reflns         8319
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.056
_refine_ls_R_factor_all          0.0646
_refine_ls_R_factor_gt           0.0534
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0667P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1193
_refine_ls_wR_factor_ref         0.1249
_reflns_number_gt                6938
_reflns_number_total             8319
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5cc03160e2-1.cif
_cod_data_source_block           compound-30
_cod_original_cell_volume        4737.3(11)
_cod_original_sg_symbol_H-M      'Pca2(1) '
_cod_database_code               7117510