Tautomerism-Dependent Ring Construction of N-Heterocyclic Compounds from the Reactions of 1-Alkynyl Fischer Carbene Complexes and Substituted Pyrazolinones
Zhaoyan Zheng; Zhengkun Yu; Ning Luo; Xiuwen Han; Journal of Organic Chemistry 71 (2006) 9695–9700; doi:10.1021/jo061725+

data_4022177
_publ_section_title
;
 Tautomerism-Dependent Ring Construction of N-Heterocyclic
 Compounds from the Reactions of 1-Alkynyl Fischer Carbene Complexes
 and Substituted Pyrazolinones
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              9695
_journal_page_last               9700
_journal_paper_doi               10.1021/jo061725+
_journal_volume                  71
_journal_year                    2006
_chemical_formula_sum            'C20 H12 N2 O6 W'
_chemical_formula_weight         560.17
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                77.1420(10)
_cell_angle_beta                 81.9550(10)
_cell_angle_gamma                73.9520(10)
_cell_formula_units_Z            2
_cell_length_a                   7.2861(5)
_cell_length_b                   11.8334(8)
_cell_length_c                   11.9210(8)
_cell_measurement_reflns_used    3696
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      56.201
_cell_measurement_theta_min      5.538
_cell_volume                     959.62(11)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.969
_diffrn_measured_fraction_theta_max 0.969
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.1226
_diffrn_reflns_av_sigmaI/netI    0.0841
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            5683
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         2.28
_exptl_absorpt_coefficient_mu    6.059
_exptl_absorpt_correction_T_max  0.75231
_exptl_absorpt_correction_T_min  0.15498
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.939
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             536
_exptl_crystal_size_max          0.387
_exptl_crystal_size_mid          0.306
_exptl_crystal_size_min          0.058
_refine_diff_density_max         4.052
_refine_diff_density_min         -2.744
_refine_diff_density_rms         0.287
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     262
_refine_ls_number_reflns         4049
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0674
_refine_ls_R_factor_gt           0.0646
_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^)+(0.1213P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1609
_refine_ls_wR_factor_ref         0.1631
_reflns_number_gt                3650
_reflns_number_total             4049
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo061725+si20060821_041631_1.cif
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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_database_code               4022177