Thiazepine moiety-controlled regioselective rearrangements of 7-oxanorbornadiene derivatives.
Ding, Hanfeng; Zhang, Yiping; Yao, Weijun; Xu, Duanjun; Ma, Cheng; Chemical communications (Cambridge, England)  (2008) 5797–5799; doi:10.1039/b813371a

data_7103539
_publ_section_title
;
 Thiazepine moiety-controlled regioselective rearrangements of
 7-oxanorbornadiene derivatives.
;
_journal_issue                   44
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              5797
_journal_page_last               5799
_journal_paper_doi               10.1039/b813371a
_journal_year                    2008
_chemical_formula_moiety         'C24 H20 O4'
_chemical_formula_sum            'C24 H20 O4'
_chemical_formula_weight         372.40
_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                 98.484(14)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.979(4)
_cell_length_b                   8.876(4)
_cell_length_c                   18.629(7)
_cell_measurement_reflns_used    2756
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      24.7
_cell_measurement_theta_min      3.1
_cell_volume                     1959.1(13)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      295(2)
_diffrn_detector_area_resol_mean 10.0
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID IP'
_diffrn_measurement_method       \w
_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  0.0285
_diffrn_reflns_av_sigmaI/netI    0.0240
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            18781
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         3.16
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.085
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.263
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       chunk
_exptl_crystal_F_000             784
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.155
_refine_diff_density_min         -0.168
_refine_diff_density_rms         0.028
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         4476
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0643
_refine_ls_R_factor_gt           0.0408
_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^)+(0.0468P)^2^+0.1999P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0962
_refine_ls_wR_factor_ref         0.1051
_reflns_number_gt                3135
_reflns_number_total             4476
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            b813371a.txt
_cod_data_source_block           5
_cod_original_sg_symbol_H-M      'p 21/c'
_cod_database_code               7103539