Trineopentylphosphine: A Conformationally Flexible Ligand for the Coupling of Sterically Demanding Substrates in the Buchwald-Hartwig Amination and Suzuki-Miyaura Reaction
Steven M. Raders; Jane N. Moore; Jacquelynn K. Parks; Ashley D. Miller; Thomas M. Leißing; Steven P. Kelley; Robin D. Rogers; Kevin H. Shaughnessy; Journal of Organic Chemistry 78 (2013) 4649–4664; doi:10.1021/jo400435z

data_4028229
_publ_contact_author_address
;Department of Chemistry
Box 870336
The University of Alabama
Tuscaloosa, AL 35487-0336
USA
;
_publ_contact_author_email       kshaughn@as.ua.edu
_publ_contact_author_fax         205-348-9104
_publ_contact_author_name        'Kevin H. Shaughnessy'
_publ_contact_author_phone       205-348-4435
_publ_section_title
;
 Trineopentylphosphine: A Conformationally Flexible Ligand for the
 Coupling of Sterically Demanding Substrates in the Buchwald-Hartwig
 Amination and Suzuki-Miyaura Reaction
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              4649
_journal_page_last               4664
_journal_paper_doi               10.1021/jo400435z
_journal_volume                  78
_journal_year                    2013
_chemical_formula_sum            'C25 H46 Br P Pd'
_chemical_formula_weight         563.90
_chemical_name_systematic
; 
 ? 
;
_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                 113.961(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.0300(16)
_cell_length_b                   16.4173(16)
_cell_length_c                   12.3394(12)
_cell_measurement_reflns_used    4394
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      24.92
_cell_measurement_theta_min      2.19
_cell_volume                     2782.4(5)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_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  0.1054
_diffrn_reflns_av_sigmaI/netI    0.0741
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            32865
_diffrn_reflns_theta_full        26.49
_diffrn_reflns_theta_max         26.49
_diffrn_reflns_theta_min         1.48
_exptl_absorpt_coefficient_mu    2.169
_exptl_absorpt_correction_T_max  0.9579
_exptl_absorpt_correction_T_min  0.7094
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker AXScale'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.346
_exptl_crystal_density_meas      0
_exptl_crystal_description       Irregular
_exptl_crystal_F_000             1168
_exptl_crystal_size_max          0.17
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.858
_refine_diff_density_min         -0.930
_refine_diff_density_rms         0.114
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.975
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     265
_refine_ls_number_reflns         5711
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.975
_refine_ls_R_factor_all          0.0940
_refine_ls_R_factor_gt           0.0433
_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^)+(0.0535P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0910
_refine_ls_wR_factor_ref         0.1112
_reflns_number_gt                3584
_reflns_number_total             5711
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo400435z_si_002_2.cif
_cod_data_source_block           8
_cod_database_code               4028229