Synthesis of novel synthetic intermediates from the reaction of benzimidazole and triazole carbenes with ketenimines and their application in the construction of spiro-pyrroles
Mo, Jun-Ming; Ma, Yang-Guang; Cheng, Ying; Organic & Biomolecular Chemistry 7 (2009) 5010–5019; doi:10.1039/b915215f

data_7150782
_publ_section_title
;
 Synthesis of novel synthetic intermediates from the reaction of
 benzimidazole and triazole carbenes with ketenimines and their
 application in the construction of spiro-pyrroles
;
_journal_issue                   23
_journal_name_full               'Organic &amp; Biomolecular Chemistry'
_journal_page_first              5010
_journal_page_last               5019
_journal_paper_doi               10.1039/b915215f
_journal_volume                  7
_journal_year                    2009
_chemical_formula_moiety         'C39 H38 N4 O5'
_chemical_formula_sum            'C39 H38 N4 O5'
_chemical_formula_weight         642.73
_chemical_name_common
;
(R,E)-methyl 6-(1-methoxy-1-oxopropan-2-ylidene)-7-(4-
methoxyphenyl)-1,3,4-triphenyl-8-propyl-1,2,4,7-tetraazaspiro(4.4)nona-
2,8-diene-9-carboxylate
;
_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                 92.631(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.2415(9)
_cell_length_b                   20.801(2)
_cell_length_c                   17.0490(16)
_cell_measurement_reflns_used    6935
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.9
_cell_measurement_theta_min      1.5
_cell_volume                     3273.9(5)
_computing_cell_refinement       CrystalClear
_computing_data_collection       'CrystalClear(Rigaku/MSC Inc., 2005)'
_computing_data_reduction        CrystalClear
_computing_publication_material  'CrystalStructure 3.7.0'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      113(2)
_diffrn_detector_area_resol_mean 7.31
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Rigaku Saturn'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0512
_diffrn_reflns_av_sigmaI/netI    0.0379
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            40544
_diffrn_reflns_theta_full        27.87
_diffrn_reflns_theta_max         27.87
_diffrn_reflns_theta_min         1.55
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_T_max  0.9879
_exptl_absorpt_correction_T_min  0.9828
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   CrystalClear
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.304
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1360
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.282
_refine_diff_density_min         -0.242
_refine_diff_density_rms         0.051
_refine_ls_extinction_coef       0.0091(9)
_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   1.059
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     440
_refine_ls_number_reflns         7773
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0596
_refine_ls_R_factor_gt           0.0466
_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^)+(0.0533P)^2^+0.9754P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1108
_refine_ls_wR_factor_ref         0.1180
_reflns_number_gt                6388
_reflns_number_total             7773
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b915215f.txt
_cod_data_source_block           20b
_cod_original_cell_volume        3273.9(6)
_cod_database_code               7150782