Pyrrolo-imidazo[1,2-<i>a</i>]pyridine Scaffolds through a Sequential Coupling of <i>N</i>-Tosylhydrazones with Imidazopyridines and Reductive Cadogan Annulation, Synthetic Scope, and Application.
Zhang, Kena; El Bouakher, Abderrahman; Levaique, Helene; Bignon, Jerome; Retailleau, Pascal; Alami, Mouad; Hamze, Abdallah; The Journal of organic chemistry 84 (2019) 13807–13823; doi:10.1021/acs.joc.9b02018

data_4034534
_publ_section_title
;
 Pyrrolo-imidazo[1,2-<i>a</i>]pyridine Scaffolds through a Sequential
 Coupling of <i>N</i>-Tosylhydrazones with Imidazopyridines and Reductive
 Cadogan Annulation, Synthetic Scope, and Application.
;
_journal_issue                   21
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              13807
_journal_page_last               13823
_journal_paper_doi               10.1021/acs.joc.9b02018
_journal_volume                  84
_journal_year                    2019
_chemical_formula_moiety         'C23 H25 N3 O5, 0.50(C2 H6 O)'
_chemical_formula_sum            'C24 H28 N3 O5.5'
_chemical_formula_weight         446.49
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_cell_angle_alpha                90
_cell_angle_beta                 107.109(3)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   14.9275(4)
_cell_length_b                   13.8231(3)
_cell_length_c                   23.3215(6)
_cell_measurement_reflns_used    21466
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.1360
_cell_measurement_theta_min      3.5670
_cell_volume                     4599.3(2)
_computing_cell_refinement       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'HPAD Dectris Pilatus3R 200K'
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.897
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB AFC12 (RINC): Kappa single'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0435
_diffrn_reflns_av_unetI/netI     0.0334
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.897
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            54118
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.897
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.048
_diffrn_reflns_theta_min         3.564
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'Rigaku (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.48598
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.46 (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.290
_exptl_crystal_description       parallelepiped
_exptl_crystal_F_000             1896
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.374
_refine_diff_density_min         -0.293
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     601
_refine_ls_number_reflns         11022
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0695
_refine_ls_R_factor_gt           0.0513
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0717P)^2^+0.9802P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1363
_refine_ls_wR_factor_ref         0.1469
_reflns_Friedel_coverage         0.000
_reflns_number_gt                8292
_reflns_number_total             11028
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo9b02018_si_002.cif
_cod_data_source_block           Compound_5e
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_original_formula_sum        'C24 H28 N3 O5.50'
_cod_database_code               4034534
_shelx_res_checksum              8639
_shelx_hkl_checksum              2606