Interaction of β-Lactam Carbenes with 3,6-Diphenyltetrazines: A Five-Step Cascade Reaction for the Direct Construction of Indeno[2,1-b]pyrrol-2-ones
Juan Xing; Xiao-Rong Wang; Cai-Xia Yan; Ying Cheng; Journal of Organic Chemistry 76 (2011) 4746–4752; doi:10.1021/jo200499u

data_4026365
_publ_section_title
;
 Interaction of \b-Lactam Carbenes with 3,6-Diphenyltetrazines: A
 Five-Step Cascade Reaction for the Direct Construction of
 Indeno[2,1-b]pyrrol-2-ones
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              4746
_journal_page_last               4752
_journal_paper_doi               10.1021/jo200499u
_journal_volume                  76
_journal_year                    2011
_chemical_formula_sum            'C25 H19 Cl2 N O'
_chemical_formula_weight         420.31
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_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                101.788(2)
_cell_angle_beta                 113.095(2)
_cell_angle_gamma                99.135(2)
_cell_formula_units_Z            2
_cell_length_a                   9.5724(13)
_cell_length_b                   10.2383(15)
_cell_length_c                   11.9176(16)
_cell_measurement_reflns_used    1140
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      24.80
_cell_measurement_theta_min      2.40
_cell_volume                     1014.0(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      150(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_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  0.0287
_diffrn_reflns_av_sigmaI/netI    0.0579
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            5242
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         25.25
_diffrn_reflns_theta_min         1.94
_exptl_absorpt_coefficient_mu    0.337
_exptl_absorpt_correction_T_max  0.9512
_exptl_absorpt_correction_T_min  0.8999
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.377
_exptl_crystal_description       Block
_exptl_crystal_F_000             436
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.317
_refine_diff_density_min         -0.282
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     264
_refine_ls_number_reflns         3654
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0639
_refine_ls_R_factor_gt           0.0460
_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^)+(0.0437P)^2^+0.1866P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1009
_refine_ls_wR_factor_ref         0.1101
_reflns_number_gt                2777
_reflns_number_total             3654
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo200499u_si_003.cif
_cod_data_source_block           110415a_0m
_cod_database_code               4026365