Silver(I)-Catalyzed Facile Synthesis of Pyrazoles From Propargyl N-Sulfonylhydrazones
Young Tak Lee; Young Keun Chung; Journal of Organic Chemistry 73 (2008) 4698–4701; doi:10.1021/jo800663g

data_4023489
_publ_section_title
;
 Silver(I)-Catalyzed Facile Synthesis of Pyrazoles
 From Propargyl N-Sulfonylhydrazones
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              4698
_journal_page_last               4701
_journal_paper_doi               10.1021/jo800663g
_journal_volume                  73
_journal_year                    2008
_chemical_formula_sum            'C10 H12 N2 O2 S'
_chemical_formula_weight         224.28
_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                 112.576(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.5334(3)
_cell_length_b                   18.0992(10)
_cell_length_c                   8.4620(4)
_cell_measurement_reflns_used    3857
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      0.998
_cell_volume                     1065.37(9)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    ORTEP3
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_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  0.0171
_diffrn_reflns_av_sigmaI/netI    0.0284
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            4156
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         2.84
_exptl_absorpt_coefficient_mu    0.285
_exptl_absorpt_correction_T_max  0.9194
_exptl_absorpt_correction_T_min  0.9194
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
'R. H. Blessing, Acta Crystallogr., Sect A 1995, 51, 33-38.'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.398
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             472
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.274
_refine_diff_density_min         -0.347
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     136
_refine_ls_number_reflns         2421
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0509
_refine_ls_R_factor_gt           0.0413
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0554P)^2^+0.3594P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1093
_refine_ls_wR_factor_ref         0.1153
_reflns_number_gt                2027
_reflns_number_total             2421
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo800663g-File004.cif
_cod_data_source_block           yt6
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Empirical' changed to
'empirical' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4023489