I2/TBPB Mediated Oxidative Reaction of N-Tosylhydrazones with Anilines: Practical Construction of 1,4-Disubstituted 1,2,3-Triazoles under Metal-Free and Azide-Free Conditions.
Cai, Zhong-Jian; Lu, Xin-Mou; Zi, You; Yang, Chao; Shen, Ling-Jie; Li, Jian; Wang, Shun-Yi; Ji, Shun-Jun; Organic letters 16 (2014) 5108–5111; doi:10.1021/ol502431b

data_1517829
_publ_section_title
;
 I2/TBPB Mediated Oxidative Reaction of N-Tosylhydrazones with Anilines:
 Practical Construction of 1,4-Disubstituted 1,2,3-Triazoles under
 Metal-Free and Azide-Free Conditions.
;
_journal_issue                   19
_journal_name_full               'Organic letters'
_journal_page_first              5108
_journal_page_last               5111
_journal_paper_doi               10.1021/ol502431b
_journal_volume                  16
_journal_year                    2014
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C20 H15 N3'
_chemical_formula_sum            'C20 H15 N3'
_chemical_formula_weight         297.35
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_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     iterative
_atom_sites_solution_secondary   difmap
_audit_creation_date             2014-03-06
_audit_creation_method
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Olex2 1.2
(compiled 2014.02.28 svn.r2899 for OlexSys, GUI svn.r4781)
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_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.9901(2)
_cell_length_b                   12.9361(3)
_cell_length_c                   15.1823(4)
_cell_measurement_reflns_used    6497
_cell_measurement_temperature    296.7(9)
_cell_measurement_theta_max      29.0990
_cell_measurement_theta_min      4.1220
_cell_volume                     1569.25(7)
_computing_cell_refinement
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CrysAlisPro, Agilent Technologies,
Version 1.171.36.32 (release 02-08-2013 CrysAlis171 .NET)
(compiled Aug  2 2013,16:46:58)
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_computing_data_collection
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CrysAlisPro, Agilent Technologies,
Version 1.171.36.32 (release 02-08-2013 CrysAlis171 .NET)
(compiled Aug  2 2013,16:46:58)
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_computing_data_reduction
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CrysAlisPro, Agilent Technologies,
Version 1.171.36.32 (release 02-08-2013 CrysAlis171 .NET)
(compiled Aug  2 2013,16:46:58)
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_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'olex2.solve (Bourhis et al., 2013)'
_diffrn_ambient_temperature      296.7(9)
_diffrn_detector_area_resol_mean 10.4471
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Xcalibur, Atlas, Gemini'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_UB_11      -0.0809270000
_diffrn_orient_matrix_UB_12      -0.0194085000
_diffrn_orient_matrix_UB_13      -0.0097797000
_diffrn_orient_matrix_UB_21      0.0012852000
_diffrn_orient_matrix_UB_22      -0.0294438000
_diffrn_orient_matrix_UB_23      0.0393996000
_diffrn_orient_matrix_UB_31      -0.0365106000
_diffrn_orient_matrix_UB_32      0.0419782000
_diffrn_orient_matrix_UB_33      0.0231134000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0187
_diffrn_reflns_av_unetI/netI     0.0130
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            15281
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         3.00
_diffrn_source                   'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.076
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.89230
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
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CrysAlisPro, Agilent Technologies,
Version 1.171.36.32 (release 02-08-2013 CrysAlis171 .NET)
(compiled Aug  2 2013,16:46:58)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_density_diffrn    1.259
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             624
_exptl_crystal_size_max          0.75
_exptl_crystal_size_mid          0.7
_exptl_crystal_size_min          0.6
_refine_diff_density_max         0.833
_refine_diff_density_min         -0.389
_refine_diff_density_rms         0.046
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0(5)
_refine_ls_extinction_coef       0.028(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.058
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     179
_refine_ls_number_reflns         3185
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.058
_refine_ls_R_factor_all          0.0725
_refine_ls_R_factor_gt           0.0692
_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^)+(0.0884P)^2^+1.0816P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1871
_refine_ls_wR_factor_ref         0.1905
_reflns_number_gt                2987
_reflns_number_total             3185
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol502431b_si_002.cif
_cod_data_source_block           g140304b
_cod_depositor_comments
'Adding full bibliography for 1517829--1517830.cif.'
_cod_original_cell_volume        1569.26(7)
_cod_database_code               1517829
_chemical_oxdiff_formula         'C11 H10 N O'
_reflns_odcompleteness_completeness 99.62
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     27.42
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2. Uiso/Uaniso restraints and constraints
Uanis(C1) = Uanis(C2) = Uanis(C3) = Uanis(C4) = Uanis(C5) = Uanis(C6)
3.a Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C3(H3), C4(H4), C5(H5), C8(H8), C9(H9), C10(H10), C11(H11),
 C13(H13), C16(H16), C17(H17), C18(H18), C19(H19), C20(H20)
;