One-pot synthesis of 3,4,5-trisubstituted 1,2,4-triazoles via the addition of hydrazides to activated secondary amides.
Bechara, William S.; Khazhieva, Inna S.; Rodriguez, Elsa; Charette, André B; Organic letters 17 (2015) 1184–1187; doi:10.1021/acs.orglett.5b00128

data_1554791
_publ_section_title
;
 One-pot synthesis of 3,4,5-trisubstituted 1,2,4-triazoles via the
 addition of hydrazides to activated secondary amides.
;
_journal_issue                   5
_journal_name_full               'Organic letters'
_journal_page_first              1184
_journal_page_last               1187
_journal_paper_doi               10.1021/acs.orglett.5b00128
_journal_volume                  17
_journal_year                    2015
_chemical_formula_moiety         'C21 H15 N3 O'
_chemical_formula_sum            'C21 H15 N3 O'
_chemical_formula_weight         325.36
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2014-05-20
_audit_creation_method
;
Olex2 1.2
(compiled 2014.03.20 svn.r2914 for OlexSys, GUI svn.r4816)
;
_cell_angle_alpha                90
_cell_angle_beta                 96.996(7)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.5706(11)
_cell_length_b                   17.3802(16)
_cell_length_c                   10.1316(10)
_cell_measurement_reflns_used    8134
_cell_measurement_temperature    150
_cell_measurement_theta_max      60.432
_cell_measurement_theta_min      4.284
_cell_volume                     1847.5(3)
_computing_cell_refinement
;
SAINT (2013) V8.34A; Integration Software for Single Crystal Data.
Bruker AXS Inc., Madison, WI 53719-1173.
;
_computing_data_collection
;
APEX 2 (2013) Bruker AXS Inc., Madison, WI 53719-1173.
;
_computing_data_reduction
'SAINT (2013) V8.34A; Integration Software for Single Crystal Data. Bruker AXS Inc., Madison, WI 53719-1173.'
_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    'XS (Sheldrick, 2008)'
_diffrn_ambient_temperature      150
_diffrn_detector                 'CMOS Area detector'
_diffrn_detector_area_resol_mean 10.24
_diffrn_detector_type            'Bruker Photon 100 CMOS Detector'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.948
_diffrn_measurement_device       'k-geometry diffractometer'
_diffrn_measurement_device_type  'Bruker Venture Metaljet'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_collimation    'Focusing mirrors'
_diffrn_radiation_monochromator  'Helios MX Mirror Optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           GaK\a
_diffrn_radiation_wavelength     1.34139
_diffrn_reflns_av_R_equivalents  0.1361
_diffrn_reflns_av_unetI/netI     0.0860
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.948
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            27948
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.948
_diffrn_reflns_theta_full        53.594
_diffrn_reflns_theta_max         62.790
_diffrn_reflns_theta_min         4.282
_diffrn_source                   'Metal Jet'
_diffrn_source_target            Ga
_diffrn_source_type              'Gallium Liquid Metal Jet Source'
_exptl_absorpt_coefficient_mu    0.378
_exptl_absorpt_correction_T_max  0.7519
_exptl_absorpt_correction_T_min  0.5219
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2012/1 (Bruker,2012) was used for absorption correction.
wR2(int) was 0.1439 before and 0.0907 after correction.
The Ratio of minimum to maximum transmission is 0.6941.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            'clear Colorless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_primary    Colorless
_exptl_crystal_density_diffrn    1.170
_exptl_crystal_description       block
_exptl_crystal_F_000             680
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.216
_refine_diff_density_min         -0.292
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.985
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     227
_refine_ls_number_reflns         4273
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.985
_refine_ls_R_factor_all          0.1117
_refine_ls_R_factor_gt           0.0595
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0824P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1454
_refine_ls_wR_factor_ref         0.1626
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2359
_reflns_number_total             4273
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ol5b00128_si_002.cif
_cod_data_source_block           sylva7
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_diffrn_radiation_probe' value 'X-ray' was changed to
'x-ray' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_database_code               1554791
_shelxl_version_number           2013-4
_shelx_estimated_absorpt_t_max   0.992
_shelx_estimated_absorpt_t_min   0.911
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C7(H7), C4(H4), C13(H13), C16(H16), C12(H12), C10(H10), C11(H11), C5(H5),
 C6(H6), C17(H17), C19(H19), C18(H18)
2.b Idealised Me refined as rotating group:
 C21(H21A,H21B,H21C)
;
_shelx_res_checksum              34138
_shelx_hkl_checksum              80337