Synthetic study on tetrapetalones: stereoselective cyclization of N-acyliminium ion to construct substituted 1-benzazepines.
Li, Cheng; Li, Xinyu; Hong, Ran; Organic letters 11 (2009) 4036–4039; doi:10.1021/ol901349b

data_1504065
_publ_section_title
;
 Synthetic study on tetrapetalones: stereoselective cyclization of
 N-acyliminium ion to construct substituted 1-benzazepines.
;
_journal_issue                   18
_journal_name_full               'Organic letters'
_journal_page_first              4036
_journal_page_last               4039
_journal_paper_doi               10.1021/ol901349b
_journal_volume                  11
_journal_year                    2009
_chemical_formula_sum            'C16 H19 N O2'
_chemical_formula_weight         257.32
_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                 101.1040(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.1402(2)
_cell_length_b                   12.5429(3)
_cell_length_c                   15.2299(3)
_cell_measurement_reflns_used    6019
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      29.98
_cell_measurement_theta_min      2.73
_cell_volume                     1338.44(6)
_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      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0206
_diffrn_reflns_av_sigmaI/netI    0.0163
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            11226
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         2.12
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.897748
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_density_diffrn    1.277
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             552
_exptl_crystal_size_max          0.725
_exptl_crystal_size_mid          0.593
_exptl_crystal_size_min          0.434
_refine_diff_density_max         0.225
_refine_diff_density_min         -0.200
_refine_diff_density_rms         0.036
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     172
_refine_ls_number_reflns         2919
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0452
_refine_ls_R_factor_gt           0.0395
_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^)+(0.0551P)^2^+0.2675P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1053
_refine_ls_wR_factor_ref         0.1106
_reflns_number_gt                2513
_reflns_number_total             2919
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol901349b_si_002.cif
_cod_data_source_block           z
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1504065