Bridgehead Lithiation-Substitution of Bridged Ketones, Lactones, Lactams, and Imides: Experimental Observations and Computational Insights
Christopher J. Hayes; Nigel S. Simpkins; Douglas T. Kirk; Lee Mitchell; Jerome Baudoux; Alexander J. Blake; Claire Wilson; Journal of the American Chemical Society 131 (2009) 8196–8210; doi:10.1021/ja9009875

data_4104529
_publ_section_title
;
 Bridgehead Lithiation-Substitution of Bridged Ketones, Lactones, Lactams,
 and Imides: Experimental Observations and Computational Insights
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8196
_journal_page_last               8210
_journal_paper_doi               10.1021/ja9009875
_journal_volume                  131
_journal_year                    2009
_chemical_formula_moiety         'C17 H23 N O S Si'
_chemical_formula_sum            'C17 H23 N O S Si'
_chemical_formula_weight         317.51
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.293(2)
_cell_length_b                   11.150(4)
_cell_length_c                   25.494(8)
_cell_measurement_reflns_used    2474
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      22.65
_cell_measurement_theta_min      2.4
_cell_volume                     1788.8(10)
_computing_cell_refinement       'Bruker SAINT version 6.02a (Bruker, 2000)'
_computing_data_collection       'Bruker SMART version 5.625 (Bruker, 2001)'
_computing_data_reduction        'Bruker SAINT; Bruker SHELXTL (Bruker, 1997)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'SHELXL-97; PLATON (Spek, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.978
_diffrn_measured_fraction_theta_max 0.942
_diffrn_measurement_device_type  'Bruker SMART APEX CCD area detector'
_diffrn_measurement_method       omega
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.062
_diffrn_reflns_av_sigmaI/netI    0.0756
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            10575
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         28.09
_diffrn_reflns_theta_min         1.60
_diffrn_standards_decay_%        none
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.247
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.179
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             680
_exptl_crystal_size_max          0.66
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.321
_refine_diff_density_min         -0.270
_refine_diff_density_rms         0.045
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.01(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.930
_refine_ls_hydrogen_treatment    'riding model'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         4001
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.930
_refine_ls_R_factor_all          0.0765
_refine_ls_R_factor_gt           0.0436
_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^)+(0.0360P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0813
_refine_ls_wR_factor_ref         0.0883
_reflns_number_gt                2661
_reflns_number_total             4028
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja9009875_si_005.cif
_cod_data_source_block           thzone
_cod_depositor_comments
;
The following automatic conversions were performed:

'_atom_sites_solution_hydrogens' value 'geometrically placed' was
changed to 'geom'.

Automatic conversion script
Id: cif_fix_values 6452 2018-10-05 10:23:21Z andrius 
;
_cod_original_cell_volume        1789(2)
_cod_database_code               4104529