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_4025745
_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         'C25 H21 Cl2 N O2'
_chemical_formula_sum            'C25 H21 Cl2 N O2'
_chemical_formula_weight         438.33
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 103.671(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   17.803(6)
_cell_length_b                   9.984(3)
_cell_length_c                   25.300(9)
_cell_measurement_temperature    293(2)
_cell_volume                     4370(3)
_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      293(2)
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.982
_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  0.1078
_diffrn_reflns_av_sigmaI/netI    0.0873
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            19433
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         1.66
_exptl_absorpt_coefficient_mu    0.319
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.332
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1824
_exptl_crystal_size_max          0.235
_exptl_crystal_size_mid          0.137
_exptl_crystal_size_min          0.081
_refine_diff_density_max         0.285
_refine_diff_density_min         -0.216
_refine_diff_density_rms         0.057
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.241
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     272
_refine_ls_number_reflns         3773
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.241
_refine_ls_R_factor_all          0.1444
_refine_ls_R_factor_gt           0.0978
_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^)+(0.0463P)^2^+6.1702P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1573
_refine_ls_wR_factor_ref         0.1726
_reflns_number_gt                2748
_reflns_number_total             3773
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo101045z_si_005.cif
_cod_data_source_block           nkj14m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_cell_volume        4369(2)
_cod_original_sg_symbol_Hall     -C2yc
_cod_database_code               4025745