Synthesis of 6-Amino- and 6-Arylazoazulenes via Nucleophilic Aromatic Substitution and Their Reactivity and Properties.
Shoji, Taku; Sugiyama, Shuhei; Takeuchi, Mutsumi; Ohta, Akira; Sekiguchi, Ryuta; Ito, Shunji; Yatsu, Tomoaki; Okujima, Tetsuo; Yasunami, Masafumi; The Journal of organic chemistry 84 (2019) 1257–1275; doi:10.1021/acs.joc.8b02648

data_4037546
_publ_section_title
;
 Synthesis of 6-Amino- and 6-Arylazoazulenes via Nucleophilic Aromatic
 Substitution and Their Reactivity and Properties.
;
_journal_issue                   3
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              1257
_journal_page_last               1275
_journal_paper_doi               10.1021/acs.joc.8b02648
_journal_volume                  84
_journal_year                    2019
_chemical_formula_moiety         'C23 H22 N2 O4'
_chemical_formula_sum            'C23 H22 N2 O4'
_chemical_formula_weight         390.42
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_cell_angle_alpha                70.834(3)
_cell_angle_beta                 81.487(2)
_cell_angle_gamma                82.580(2)
_cell_formula_units_Z            4
_cell_length_a                   8.2051(2)
_cell_length_b                   14.4648(4)
_cell_length_c                   17.5416(5)
_cell_measurement_reflns_used    15154
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      31.18
_cell_measurement_theta_min      2.21
_cell_volume                     1937.62(10)
_computing_cell_refinement       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_molecular_graphics    'CrystalStructure 4.3.1 (Rigaku, 2018)'
_computing_publication_material  'CrystalStructure 4.3.1 (Rigaku, 2018)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 7.111
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Rigaku Saturn724'
_diffrn_measurement_method       \w
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0499
_diffrn_reflns_av_unetI/netI     0.0489
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            33220
_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         27.998
_diffrn_reflns_theta_min         1.613
_diffrn_source                   'Varimax 50 kV 24 mA Rotating anode'
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  0.998
_exptl_absorpt_correction_T_min  0.948
_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            brown
_exptl_crystal_density_diffrn    1.338
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             824
_exptl_crystal_size_max          0.260
_exptl_crystal_size_mid          0.050
_exptl_crystal_size_min          0.020
_refine_diff_density_max         0.314
_refine_diff_density_min         -0.265
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     529
_refine_ls_number_reflns         9328
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0906
_refine_ls_R_factor_gt           0.0564
_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^)+(0.0558P)^2^+0.5757P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1229
_refine_ls_wR_factor_ref         0.1393
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6311
_reflns_number_total             9328
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo8b02648_si_004.cif
_cod_data_source_block           shelxl
_cod_database_code               4037546
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.976
_shelx_estimated_absorpt_t_max   0.998
_shelx_res_checksum              84768
_shelx_hkl_checksum              32449