Enantiospecific, nickel-catalyzed cross-couplings of allylic pivalates and arylboroxines.
Srinivas, Harathi D.; Zhou, Qi; Watson, Mary P.; Organic letters 16 (2014) 3596–3599; doi:10.1021/ol5016724

data_1516627
_publ_section_title
;
 Enantiospecific, nickel-catalyzed cross-couplings of allylic pivalates
 and arylboroxines.
;
_journal_issue                   13
_journal_name_full               'Organic letters'
_journal_page_first              3596
_journal_page_last               3599
_journal_paper_doi               10.1021/ol5016724
_journal_volume                  16
_journal_year                    2014
_chemical_absolute_configuration ad
_chemical_formula_sum            'C16 H14 Cl2'
_chemical_formula_weight         277.17
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.6849(8)
_cell_length_b                   7.6858(10)
_cell_length_c                   32.425(4)
_cell_measurement_reflns_used    9863
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      73.56
_cell_measurement_theta_min      5.92
_cell_volume                     1416.7(3)
_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-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 8.33
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Bruker AXS APEX diffractometer'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0325
_diffrn_reflns_av_unetI/netI     0.0206
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.989
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       39
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            20983
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.985
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         73.548
_diffrn_reflns_theta_min         2.725
_exptl_absorpt_coefficient_mu    3.932
_exptl_absorpt_correction_T_max  0.7146
_exptl_absorpt_correction_T_min  0.5176
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'APEX2 (Bruker, 2007)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.299
_exptl_crystal_description       block
_exptl_crystal_F_000             576
_exptl_crystal_size_max          0.443
_exptl_crystal_size_mid          0.397
_exptl_crystal_size_min          0.268
_refine_diff_density_max         0.276
_refine_diff_density_min         -0.220
_refine_diff_density_rms         0.036
_refine_ls_abs_structure_details
; 
 Flack x determined using 1116 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons and Flack (2004), Acta Cryst. A60, s61). 
;
_refine_ls_abs_structure_Flack   0.043(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     164
_refine_ls_number_reflns         2806
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0290
_refine_ls_R_factor_gt           0.0288
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
; 
 w=1/[\s^2^(Fo^2^)+(0.0478P)^2^+0.3632P] 
 where P=(Fo^2^+2Fc^2^)/3 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0806
_refine_ls_wR_factor_ref         0.0807
_reflns_Friedel_coverage         0.669
_reflns_Friedel_fraction_full    0.996
_reflns_Friedel_fraction_max     0.980
_reflns_number_gt                2788
_reflns_number_total             2806
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ol5016724_si_002.cif
_cod_data_source_block           mary015
_cod_depositor_comments          'Adding full bibliography for 1516627.cif.'
_cod_original_cell_volume        1416.8(3)
_cod_database_code               1516627
_shelx_estimated_absorpt_t_min   0.275
_shelx_estimated_absorpt_t_max   0.419
_shelxl_version_number           2013-2
_shelx_res_checksum              10739
_shelx_hkl_checksum              50944