Nitrosobenzene-Mediated C-C Bond Cleavage Reactions and Spectral Observation of an Oxazetidin-4-one Ring System
Joshua N. Payette; Hisashi Yamamoto; Journal of the American Chemical Society 130 (2008) 12276–12278; doi:10.1021/ja804325f

data_4108352
_publ_section_title
;
 Nitrosobenzene-Mediated C-C Bond Cleavage Reactions and Spectral
 Observation of an Oxazetidin-4-one Ring System
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12276
_journal_page_last               12278
_journal_paper_doi               10.1021/ja804325f
_journal_volume                  130
_journal_year                    2008
_chemical_formula_sum            'C19 H27 N O3 Si'
_chemical_formula_weight         345.51
_space_group_IT_number           7
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P -2yc'
_symmetry_space_group_name_H-M   'P 1 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                 102.359(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.219(3)
_cell_length_b                   6.4631(17)
_cell_length_c                   14.713(4)
_cell_measurement_temperature    100(2)
_cell_volume                     949.2(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.975
_diffrn_measured_fraction_theta_max 0.975
_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  0.0264
_diffrn_reflns_av_sigmaI/netI    0.0427
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            10827
_diffrn_reflns_theta_full        28.30
_diffrn_reflns_theta_max         28.30
_diffrn_reflns_theta_min         2.04
_exptl_absorpt_coefficient_mu    0.140
_exptl_absorpt_correction_T_max  0.9780
_exptl_absorpt_correction_T_min  0.9463
_exptl_crystal_density_diffrn    1.209
_exptl_crystal_F_000             372
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.347
_refine_diff_density_min         -0.197
_refine_diff_density_rms         0.042
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.32(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.940
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     221
_refine_ls_number_reflns         4483
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      0.939
_refine_ls_R_factor_all          0.0386
_refine_ls_R_factor_gt           0.0356
_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^)+(0.0438P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0767
_refine_ls_wR_factor_ref         0.0781
_reflns_number_gt                4162
_reflns_number_total             4483
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja804325f_si_003.cif
_cod_data_source_block           josh09s
_cod_original_cell_volume        949.3(4)
_cod_database_code               4108352