Palladium-Catalyzed Regio-, Diastereo-, and Enantioselective Benzylic Allylation of 2-Substituted Pyridines
Barry M. Trost; David A. Thaisrivongs; Journal of the American Chemical Society 131 (2009) 12056–12057; doi:10.1021/ja904441a

data_4104942
_publ_section_title
;
 Palladium-Catalyzed Regio-, Diastereo-, and Enantioselective Benzylic
 Allylation of 2-Substituted Pyridines
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12056
_journal_page_last               12057
_journal_paper_doi               10.1021/ja904441a
_journal_volume                  131
_journal_year                    2009
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C20 H23 Br N, Br3'
_chemical_formula_sum            'C20 H23 Br4 N'
_chemical_formula_weight         597.03
_chemical_name_common            09082a
_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                   7.966(2)
_cell_length_b                   8.544(2)
_cell_length_c                   31.115(8)
_cell_measurement_reflns_used    2990
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.30
_cell_measurement_theta_min      2.62
_cell_volume                     2117.7(9)
_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  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0402
_diffrn_reflns_av_sigmaI/netI    0.0284
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       40
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            24641
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.47
_exptl_absorpt_coefficient_mu    7.605
_exptl_absorpt_correction_T_max  0.3950
_exptl_absorpt_correction_T_min  0.1760
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008)'
_exptl_crystal_colour            Orange
_exptl_crystal_density_diffrn    1.873
_exptl_crystal_description       Block
_exptl_crystal_F_000             1160
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.629
_refine_diff_density_min         -0.316
_refine_diff_density_rms         0.075
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.004(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.077
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     228
_refine_ls_number_reflns         4838
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.077
_refine_ls_R_factor_all          0.0331
_refine_ls_R_factor_gt           0.0265
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0224P)^2^+1.4023P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0552
_refine_ls_wR_factor_ref         0.0573
_reflns_number_gt                4371
_reflns_number_total             4838
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja904441a_si_003.cif
_cod_data_source_block           09082a
_cod_original_cell_volume        2117.8(9)
_cod_database_code               4104942