Difunctionalization of C-C σ-Bonds Enabled by the Reaction of Bicyclo[1.1.0]butyl Boronate Complexes with Electrophiles: Reaction Development, Scope, and Stereochemical Origins.
Bennett, Steven H.; Fawcett, Alexander; Denton, Elliott H.; Biberger, Tobias; Fasano, Valerio; Winter, Nils; Aggarwal, Varinder K.; Journal of the American Chemical Society 142 (2020) 16766–16775; doi:10.1021/jacs.0c07357

data_4135256
_publ_section_title
;
 Difunctionalization of C-C \s-Bonds Enabled by the Reaction of
 Bicyclo[1.1.0]butyl Boronate Complexes with Electrophiles: Reaction
 Development, Scope, and Stereochemical Origins.
;
_journal_issue                   39
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              16766
_journal_page_last               16775
_journal_paper_doi               10.1021/jacs.0c07357
_journal_volume                  142
_journal_year                    2020
_chemical_formula_moiety         'C17 H29 B O4'
_chemical_formula_sum            'C17 H29 B O4'
_chemical_formula_weight         308.21
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_audit_creation_date             2020-05-19
_audit_creation_method
;
Olex2 1.3
(compiled Nov 21 2019 18:26:39 for OlexSys, GUI svn.r6003)
;
_cell_angle_alpha                102.053(2)
_cell_angle_beta                 91.973(2)
_cell_angle_gamma                90.586(2)
_cell_formula_units_Z            8
_cell_length_a                   6.6532(2)
_cell_length_b                   19.3711(6)
_cell_length_c                   28.5231(9)
_cell_measurement_reflns_used    9517
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.93
_cell_measurement_theta_min      2.23
_cell_volume                     3592.31(19)
_computing_cell_refinement       'SAINT V8.38A (Bruker, 2018)'
_computing_data_collection       'Bruker Apex suite'
_computing_data_reduction        'SAINT V8.38A (Bruker, 2018)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0562
_diffrn_reflns_av_unetI/netI     0.0520
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            55804
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.682
_diffrn_reflns_theta_min         0.730
_diffrn_source_current           30.0
_diffrn_source_power             1.35
_diffrn_source_voltage           45.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.078
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6380
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.0795 before and 0.0608 after correction.
The Ratio of minimum to maximum transmission is 0.8557.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.140
_exptl_crystal_description       block
_exptl_crystal_F_000             1344
_exptl_crystal_size_max          0.638
_exptl_crystal_size_mid          0.42
_exptl_crystal_size_min          0.244
_refine_diff_density_max         0.401
_refine_diff_density_min         -0.249
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.024
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     825
_refine_ls_number_reflns         13609
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0834
_refine_ls_R_factor_gt           0.0589
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0729P)^2^+2.9294P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1519
_refine_ls_wR_factor_ref         0.1657
_reflns_Friedel_coverage         0.000
_reflns_number_gt                9939
_reflns_number_total             13609
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja0c07357_si_004.cif
_cod_data_source_block           shb_sr_092
_cod_depositor_comments
'Adding full bibliography for 4135252--4135257.cif.'
_cod_database_code               4135256
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.981
_shelx_estimated_absorpt_t_min   0.952
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C2(H2A), C6(H6), C20(H20), C24(H24), C38(H38), C42(H42), C55(H55), C59(H59)
2.b Secondary CH2 refined with riding coordinates:
 C3(H3A,H3B), C5(H5A,H5B), C7(H7A,H7B), C8(H8A,H8B), C9(H9A,H9B), C10(H10A,
 H10B), C11(H11A,H11B), C21(H21A,H21B), C23(H23A,H23B), C25(H25A,H25B),
 C26(H26A,H26B), C27(H27A,H27B), C28(H28A,H28B), C29(H29A,H29B), C01N(H01A,
 H01B), C39(H39A,H39B), C41(H41A,H41B), C43(H43A,H43B), C44(H44A,H44B),
 C45(H45A,H45B), C46(H46A,H46B), C56(H56A,H56B), C58(H58A,H58B), C60(H60A,H60B),
  C61(H61A,H61B), C62(H62A,H62B), C63(H63A,H63B), C64(H64A,H64B)
2.c Idealised Me refined as rotating group:
 C15(H15A,H15B,H15C), C16(H16A,H16B,H16C), C17(H17A,H17B,H17C), C18(H18A,H18B,
 H18C), C33(H33A,H33B,H33C), C34(H34A,H34B,H34C), C35(H35A,H35B,H35C), C36(H36A,
 H36B,H36C), C50(H50A,H50B,H50C), C51(H51A,H51B,H51C), C52(H52A,H52B,H52C),
 C53(H53A,H53B,H53C), C68(H68A,H68B,H68C), C69(H69A,H69B,H69C), C70(H70A,H70B,
 H70C), C71(H71A,H71B,H71C)
;
_shelx_res_checksum              63424
_shelx_hkl_checksum              15958
_olex2_submission_special_instructions 'No special instructions were received'