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_4025743
_publ_section_title
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 Synthesis of Chlorinated Bicyclic C-Fused
 Tetrahydrofuro[3,2-c]azetidin-2-ones
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_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         'C18 H15 Cl2 N O2'
_chemical_formula_sum            'C18 H15 Cl2 N O2'
_chemical_formula_weight         348.21
_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                 101.304(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.976(3)
_cell_length_b                   17.547(4)
_cell_length_c                   7.4994(15)
_cell_measurement_reflns_used    2923
_cell_measurement_temperature    291(2)
_cell_measurement_theta_max      21.45
_cell_measurement_theta_min      2.22
_cell_volume                     1674.4(6)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SMART'
_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      291(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0401
_diffrn_reflns_av_sigmaI/netI    0.0311
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            15642
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.60
_exptl_absorpt_coefficient_mu    0.398
_exptl_absorpt_correction_T_max  0.606
_exptl_absorpt_correction_T_min  0.464
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.368
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Rods
_exptl_crystal_F_000             720
_exptl_crystal_size_max          0.427
_exptl_crystal_size_mid          0.198
_exptl_crystal_size_min          0.149
_refine_diff_density_max         0.330
_refine_diff_density_min         -0.186
_refine_diff_density_rms         0.052
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.315
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     208
_refine_ls_number_reflns         2942
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.315
_refine_ls_R_factor_all          0.0845
_refine_ls_R_factor_gt           0.0763
_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^)+(0.0525P)^2^+1.1249P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1590
_refine_ls_wR_factor_ref         0.1632
_reflns_number_gt                2699
_reflns_number_total             2942
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo101045z_si_003.cif
_cod_data_source_block           nkj10m
_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_database_code               4025743