Self-[3+2] annulation reaction of pyridinium salts: synthesis of N-indolizine-substituted pyridine-2(1H)-ones
Cao, Yu; Shi, Qiyuan; Gao, Kai; Shao, Jiaan; Zhu, Huajian; Zeng, Linghui; Zhang, Chong; Xi, Jianjun; Zhuang, Rangxiao; Zhang, Jiankang; New Journal of Chemistry 46 (2022) 16651–16655; doi:10.1039/D2NJ03232E

data_7061723
_publ_section_title
;
 Self-[3+2] annulation reaction of pyridinium salts: synthesis of
 N-indolizine-substituted pyridine-2(1H)-ones
;
_journal_issue                   35
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              16651
_journal_page_last               16655
_journal_paper_doi               10.1039/D2NJ03232E
_journal_volume                  46
_journal_year                    2022
_chemical_formula_moiety         'C26 H18 N2 O2'
_chemical_formula_sum            'C26 H18 N2 O2'
_chemical_formula_weight         390.42
_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
_audit_creation_date             2020-10-19
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2022-03-30 deposited with the CCDC.	2022-08-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 101.167(11)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.027(2)
_cell_length_b                   17.982(5)
_cell_length_c                   15.561(5)
_cell_measurement_reflns_used    7589
_cell_measurement_temperature    170(2)
_cell_measurement_theta_max      27.12
_cell_measurement_theta_min      2.63
_cell_volume                     1929.1(10)
_computing_cell_refinement       'SAINT V8.40B (Bruker Nano, Inc., 2019)'
_computing_data_collection       'Bruker Instrument Service vV6.2.14'
_computing_data_reduction        'SAINT V8.40B (Bruker Nano, Inc., 2019)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      170.0
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'zju Bruker D8 Venture Ims3.0'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0440
_diffrn_reflns_av_unetI/netI     0.0326
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            20840
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.118
_diffrn_reflns_theta_min         2.265
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.086
_exptl_absorpt_correction_T_max  0.7455
_exptl_absorpt_correction_T_min  0.6779
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1290 before and 0.0558 after correction.
The Ratio of minimum to maximum transmission is 0.9093.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            yellow
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.344
_exptl_crystal_description       block
_exptl_crystal_F_000             816
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.183
_refine_diff_density_min         -0.232
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     271
_refine_ls_number_reflns         4252
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0519
_refine_ls_R_factor_gt           0.0388
_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^)+(0.0404P)^2^+0.5461P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0910
_refine_ls_wR_factor_ref         0.0990
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3423
_reflns_number_total             4252
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2nj03232e2.cif
_cod_data_source_block           mo_201019_sja20201012_0m
_cod_depositor_comments
'Adding full bibliography for 7061722--7061723.cif.'
_cod_database_code               7061723
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.990
_shelx_estimated_absorpt_t_min   0.970
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C3(H3), C4(H4), C10(H10), C11(H11), C12(H12), C13(H13),
 C15(H15), C16(H16), C17(H17), C18(H18), C19(H19), C22(H22), C23(H23), C24(H24),
  C25(H25), C26(H26)
;
_shelx_res_checksum              25758
_olex2_submission_special_instructions 'No special instructions were received'