Thermally induced [3+2] cyclization of aniline-tethered alkylidenecyclopropanes: a facile synthetic protocol of pyrrolo[1,2-a]indoles
Kai Chen; Zhen Zhang; Yin Wei; Min Shi; Chem.Commun. 48 (2012) 7696–; doi:10.1039/c2cc33269h

data_7108072
_publ_section_title
;
 Thermally induced [3+2] cyclization of aniline-tethered
 alkylidenecyclopropanes: a facile synthetic protocol of
 pyrrolo[1,2-a]indoles
;
_journal_name_full               Chem.Commun.
_journal_page_first              7696
_journal_paper_doi               10.1039/c2cc33269h
_journal_volume                  48
_journal_year                    2012
_chemical_formula_sum            'C27 H21 N'
_chemical_formula_weight         359.45
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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            8
_cell_length_a                   16.2578(8)
_cell_length_b                   8.2615(4)
_cell_length_c                   28.7208(15)
_cell_measurement_reflns_used    4630
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      47.463
_cell_measurement_theta_min      5.011
_cell_volume                     3857.6(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_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 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  0.0305
_diffrn_reflns_av_sigmaI/netI    0.0216
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -35
_diffrn_reflns_number            22051
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         1.89
_exptl_absorpt_coefficient_mu    0.071
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.78679
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.238
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             1520
_exptl_crystal_size_max          0.311
_exptl_crystal_size_mid          0.256
_exptl_crystal_size_min          0.127
_refine_diff_density_max         0.156
_refine_diff_density_min         -0.132
_refine_diff_density_rms         0.027
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     254
_refine_ls_number_reflns         3791
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0570
_refine_ls_R_factor_gt           0.0433
_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^)+(0.0537P)^2^+0.7527P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1080
_refine_ls_wR_factor_ref         0.1165
_reflns_number_gt                2986
_reflns_number_total             3791
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2cc33269h.txt
_cod_data_source_block           cd21257
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7108072