Copper(II)-Catalyzed Aerobic Oxidative Synthesis of Substituted 1,2,3- and 1,2,4-Triazoles from Bisarylhydrazones via C-H Functionalization/C-C/N-N/C-N Bonds Formation
Murali Mohan Guru; Tharmalingam Punniyamurthy; Journal of Organic Chemistry 77 (2012) 5063–5073; doi:10.1021/jo300592t

data_4027227
_publ_section_title
;
 Copper(II)-Catalyzed Aerobic Oxidative Synthesis of Substituted 1,2,3-
 and 1,2,4-Triazoles from Bisarylhydrazones via C-H
 Functionalization/C-C/N-N/C-N Bonds Formation
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              5063
_journal_page_last               5073
_journal_paper_doi               10.1021/jo300592t
_journal_volume                  77
_journal_year                    2012
_chemical_formula_sum            'C28 H26 N4 O2'
_chemical_formula_weight         450.53
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 106.462(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.7013(16)
_cell_length_b                   13.3293(16)
_cell_length_c                   15.6503(19)
_cell_measurement_temperature    298(2)
_cell_volume                     2541.0(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0826
_diffrn_reflns_av_sigmaI/netI    0.1857
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            23124
_diffrn_reflns_theta_full        27.77
_diffrn_reflns_theta_max         27.77
_diffrn_reflns_theta_min         1.67
_exptl_absorpt_coefficient_mu    0.076
_exptl_absorpt_correction_T_max  0.980
_exptl_absorpt_correction_T_min  0.972
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADBAS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.172
_exptl_crystal_description       block
_exptl_crystal_F_000             952.0
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.26
_refine_diff_density_max         0.162
_refine_diff_density_min         -0.203
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.804
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     317
_refine_ls_number_reflns         5512
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.804
_refine_ls_R_factor_all          0.2668
_refine_ls_R_factor_gt           0.0628
_refine_ls_shift/su_max          0.010
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1382
_refine_ls_wR_factor_ref         0.2161
_reflns_number_gt                5895
_reflns_number_total             5980
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo300592t_si_001.cif
_cod_data_source_block           1a'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4027227