Divergent reactions of indoles with aminobenzaldehydes: indole ring-opening vs. annulation and facile synthesis of neocryptolepine
Vecchione, Matthew K.; Sun, Aaron X.; Seidel, Daniel; Chemical Science 2 (2011) 2178–; doi:10.1039/c1sc00506e

data_1515569
_publ_section_title
;
 Divergent reactions of indoles with aminobenzaldehydes: indole
 ring-opening vs. annulation and facile synthesis of neocryptolepine
;
_journal_issue                   11
_journal_name_full               'Chemical Science'
_journal_page_first              2178
_journal_paper_doi               10.1039/c1sc00506e
_journal_volume                  2
_journal_year                    2011
_chemical_formula_sum            'C22 H16 N2'
_chemical_formula_weight         308.37
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 94.317(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.9876(13)
_cell_length_b                   5.6399(5)
_cell_length_c                   18.1283(16)
_cell_measurement_reflns_used    6015
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      31.92
_cell_measurement_theta_min      2.54
_cell_volume                     1528.0(2)
_computing_cell_refinement       'Bruker SAINT'
_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, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker APEX SMART CCD'
_diffrn_measurement_method       '\f and \w 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  0.0361
_diffrn_reflns_av_sigmaI/netI    0.0350
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            16429
_diffrn_reflns_theta_full        30.51
_diffrn_reflns_theta_max         30.51
_diffrn_reflns_theta_min         2.25
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_T_max  0.9984
_exptl_absorpt_correction_T_min  0.9774
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SAINT (SADABS)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.340
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needles
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.29
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.468
_refine_diff_density_min         -0.219
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.009
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         4628
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.009
_refine_ls_R_factor_all          0.0667
_refine_ls_R_factor_gt           0.0511
_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^)+(0.0630P)^2^+0.6300P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1199
_refine_ls_wR_factor_ref         0.1292
_reflns_number_gt                3687
_reflns_number_total             4628
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1sc00506e.txt
_cod_data_source_block           aaron002
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1515569