Synthesis of Chlorinated Bicyclic C-Fused Tetrahydrofuro[3,2-c]azetidin-2-ones
Ram N. Ram; Neeraj Kumar; Nem Singh; Journal of Organic Chemistry 75 (2010) 7408–7411; doi:10.1021/jo101045z

data_4025744
_publ_section_title
;
 Synthesis of Chlorinated Bicyclic C-Fused
 Tetrahydrofuro[3,2-c]azetidin-2-ones
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              7408
_journal_page_last               7411
_journal_paper_doi               10.1021/jo101045z
_journal_volume                  75
_journal_year                    2010
_chemical_formula_moiety         'C24 H19 Cl2 N O2'
_chemical_formula_sum            'C24 H19 Cl2 N O2'
_chemical_formula_weight         424.30
_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                 104.850(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.4549(11)
_cell_length_b                   16.0115(16)
_cell_length_c                   11.6598(12)
_cell_measurement_reflns_used    7163
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      25.304
_cell_measurement_theta_min      2.686
_cell_volume                     2067.1(4)
_computing_cell_refinement       'SAINT V7.46A'
_computing_data_collection       'APEX2 v2.2-0'
_computing_data_reduction        'SAINT V7.46A'
_computing_molecular_graphics    'XSHELL ver. 4.01'
_computing_publication_material  'XSHELL ver. 4.01'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker TXS-Mo rotating anode'
_diffrn_measurement_method       '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  0.0229
_diffrn_reflns_av_sigmaI/netI    0.0178
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            17553
_diffrn_reflns_theta_full        24.00
_diffrn_reflns_theta_max         24.00
_diffrn_reflns_theta_min         2.21
_diffrn_standards_decay_%        'not measured'
_diffrn_standards_interval_time  'not measured'
_diffrn_standards_number         'not measured'
_exptl_absorpt_coefficient_mu    0.334
_exptl_absorpt_correction_T_max  0.970
_exptl_absorpt_correction_T_min  0.746
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS-2008/1
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.363
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             880.0
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.186
_refine_diff_density_min         -0.369
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     262
_refine_ls_number_reflns         3238
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0402
_refine_ls_R_factor_gt           0.0369
_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^)+(0.0443P)^2^+0.7380P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0922
_refine_ls_wR_factor_ref         0.0945
_reflns_number_gt                2941
_reflns_number_total             3238
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo101045z_si_004.cif
_cod_data_source_block           nkj8m
_cod_database_code               4025744