Selective Vinyl C-H Lithiation of cis-Stilbenes
Thomas Tricotet; Patricia Fleming; Juliet Cotter; Anne-Marie L. Hogan; Carsten Strohmann; Viktoria H. Gessner; Donal F. O'Shea; Journal of the American Chemical Society 131 (2009) 3142–3143; doi:10.1021/ja809941n

data_4104295
_publ_section_title
;
 Selective Vinyl C-H Lithiation of cis-Stilbenes
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              3142
_journal_page_last               3143
_journal_paper_doi               10.1021/ja809941n
_journal_volume                  131
_journal_year                    2009
_chemical_formula_moiety         'C19 H21 N O2'
_chemical_formula_sum            'C19 H21 N O2'
_chemical_formula_weight         295.37
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   difmap
_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            8
_cell_length_a                   8.0637(7)
_cell_length_b                   12.3948(11)
_cell_length_c                   31.670(3)
_cell_measurement_reflns_used    4592
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      24.63
_cell_measurement_theta_min      2.57
_cell_volume                     3165.4(5)
_computing_cell_refinement       'Bruker SAINT'
_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      100(2)
_diffrn_detector_area_resol_mean 8.366
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       '\f and \w 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  0.0404
_diffrn_reflns_av_sigmaI/netI    0.0228
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       38
_diffrn_reflns_limit_l_min       -39
_diffrn_reflns_number            25570
_diffrn_reflns_theta_full        26.05
_diffrn_reflns_theta_max         26.05
_diffrn_reflns_theta_min         1.29
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_T_max  0.9764
_exptl_absorpt_correction_T_min  0.8297
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
 SADABS v.2.10 (Bruker,2003) was used for absorption correction. 
 R(int) for selected reflections was 0.042 before and 0.031 after 
 correction. The Ratio of minimum to maximum transmission is 0.849737. 
 The \l/2 correction factor is 0.0015 
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.240
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1264
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.234
_refine_diff_density_min         -0.161
_refine_diff_density_rms         0.035
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     283
_refine_ls_number_reflns         3106
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0437
_refine_ls_R_factor_gt           0.0356
_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^)+(0.0394P)^2^+1.0699P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0831
_refine_ls_wR_factor_ref         0.0871
_reflns_number_gt                2653
_reflns_number_total             3106
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ja809941n_si_001.cif
_cod_data_source_block           osh93
_cod_original_cell_volume        3165.3(5)
_cod_database_code               4104295