One-pot synthesis of 6,11-dihydro-5H-indolizino[8,7-b]indoles via sequential formation of β-enamino ester, Michael addition and Pictet-Spengler reactions
Yan, Chao Guo; Zhu, Dan; Sun, Jing; RSC Adv.  (2014) –; doi:10.1039/C4RA10355F

data_7218718
_publ_section_title
;
 One-pot synthesis of 6,11-dihydro-5H-indolizino[8,7-b]indoles via
 sequential formation of \b-enamino ester, Michael addition and
 Pictet-Spengler reactions
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C4RA10355F
_journal_year                    2014
_chemical_formula_moiety         'C32 H28 Cl N3 O4'
_chemical_formula_sum            'C32 H28 Cl N3 O4'
_chemical_formula_weight         554.02
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                88.151(4)
_cell_angle_beta                 74.970(4)
_cell_angle_gamma                79.593(4)
_cell_formula_units_Z            2
_cell_length_a                   10.2361(14)
_cell_length_b                   10.7356(15)
_cell_length_c                   14.661(2)
_cell_measurement_reflns_used    6534
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      2.21
_cell_volume                     1530.2(4)
_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      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0435
_diffrn_reflns_av_sigmaI/netI    0.0382
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            27184
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.93
_exptl_absorpt_coefficient_mu    0.164
_exptl_absorpt_correction_T_max  0.955
_exptl_absorpt_correction_T_min  0.943
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_density_diffrn    1.202
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             580
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.28
_platon_squeeze_details          ' '
_refine_diff_density_max         0.377
_refine_diff_density_min         -0.271
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.073
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     363
_refine_ls_number_reflns         5393
_refine_ls_number_restraints     186
_refine_ls_restrained_S_all      1.171
_refine_ls_R_factor_all          0.0883
_refine_ls_R_factor_gt           0.0582
_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^)+(0.1002P)^2^+0.2726P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1639
_refine_ls_wR_factor_ref         0.1780
_reflns_number_gt                3632
_reflns_number_total             5396
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ra10355f2.cif
_cod_data_source_block           1d
_cod_database_code               7218718