Synthesis of 1-Cyanoalkynes and Their Ruthenium(II)-Catalyzed Cycloaddition with Organic Azides to Afford 4-Cyano-1,2,3-triazoles.
Liu, Peiye; Clark, Ronald J.; Zhu, Lei; The Journal of organic chemistry 83 (2018) 5092–5103; doi:10.1021/acs.joc.8b00424

data_4035519
_publ_section_title
;
 Synthesis of 1-Cyanoalkynes and Their Ruthenium(II)-Catalyzed
 Cycloaddition with Organic Azides to Afford 4-Cyano-1,2,3-triazoles.
;
_journal_issue                   9
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              5092
_journal_page_last               5103
_journal_paper_doi               10.1021/acs.joc.8b00424
_journal_volume                  83
_journal_year                    2018
_chemical_formula_moiety         'C12 H12 N4 O'
_chemical_formula_sum            'C12 H12 N4 O'
_chemical_formula_weight         228.26
_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   mixed
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90.6996(9)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.1723(7)
_cell_length_b                   9.2651(7)
_cell_length_c                   13.5282(10)
_cell_measurement_reflns_used    7932
_cell_measurement_temperature    103(2)
_cell_measurement_theta_max      28.30
_cell_measurement_theta_min      2.66
_cell_volume                     1149.57(15)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      103(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0373
_diffrn_reflns_av_unetI/netI     0.0269
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            13600
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.312
_diffrn_reflns_theta_min         2.665
_exptl_absorpt_coefficient_mu    0.089
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_correction_T_min  0.6953
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.319
_exptl_crystal_description       irregular,
_exptl_crystal_F_000             480
_exptl_crystal_size_max          0.427
_exptl_crystal_size_mid          0.289
_exptl_crystal_size_min          0.217
_refine_diff_density_max         0.345
_refine_diff_density_min         -0.198
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.033
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     157
_refine_ls_number_reflns         2849
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.0388
_refine_ls_R_factor_gt           0.0360
_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^)+(0.0499P)^2^+0.3573P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0942
_refine_ls_wR_factor_ref         0.0970
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2617
_reflns_number_total             2849
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo8b00424_si_005.cif
_cod_data_source_block           zhu235
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4035519
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.963
_shelx_estimated_absorpt_t_max   0.981
_exptl_absorpt_special_details   SADABS
_shelx_res_checksum              70513
_shelx_hkl_checksum              41011