Unexpected Ring Transformation to Pyrrolo[3.2-b]pyridine Derivatives. Fused Azolium Salts. 22
Zsuzsanna Riedl; Péter Kövér; György Hajós; Orsolya Egyed; László Fábián; András Messmer; Journal of Organic Chemistry 68 (2003) 5652–5659; doi:10.1021/jo034231a

data_4022419
_publ_section_title
;
 Unexpected Ring Transformation to Pyrrolo[3.2-b]pyridine Derivatives.
 Fused Azolium Salts. 22
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              5652
_journal_page_last               5659
_journal_paper_doi               10.1021/jo034231a
_journal_volume                  68
_journal_year                    2003
_chemical_absolute_configuration ad
_chemical_formula_sum            'C28 H22 Cl N3 O2 S'
_chemical_formula_weight         500.00
_chemical_name_systematic
;
 kp118
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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            4
_cell_length_a                   7.517(1)
_cell_length_b                   15.096(2)
_cell_length_c                   20.836(2)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      34.78
_cell_measurement_theta_min      30.19
_cell_volume                     2364.4(5)
_computing_cell_refinement       'CAD4 Express'
_computing_data_collection       'CAD4 Express'
_computing_data_reduction        'XCAD4 (Harms 1996)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Enraf-Nonius CAD4'
_diffrn_measurement_method       \w--2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           'CU k\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0355
_diffrn_reflns_av_sigmaI/netI    0.0243
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            5716
_diffrn_reflns_theta_full        75.86
_diffrn_reflns_theta_max         75.86
_diffrn_reflns_theta_min         3.62
_diffrn_standards_decay_%        1
_diffrn_standards_interval_time  60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    2.515
_exptl_absorpt_correction_T_max  0.799
_exptl_absorpt_correction_T_min  0.638
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   'DATCOR (Riebenspies, 1989)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.405
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1040
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.307
_refine_diff_density_min         -0.528
_refine_diff_density_rms         0.071
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.003(13)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     316
_refine_ls_number_reflns         4875
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0452
_refine_ls_R_factor_gt           0.0429
_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^)+(0.0838P)^2^+0.1955P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1111
_refine_ls_wR_factor_ref         0.1127
_reflns_number_gt                4596
_reflns_number_total             4875
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo034231asi20030515_025854_1.cif
_cod_data_source_block           6a
_cod_database_code               4022419