Palladium-catalyzed intramolecular oxidative annulation: synthesis of <i>o</i>-carboranoxazoles.
Rao, Hui; Jia, Hairui; Qiu, Zaozao; Xie, Zuowei; Dalton transactions (Cambridge, England : 2003) 54 (2025) 4866–4870; doi:10.1039/d5dt00382b

data_7718188
_publ_section_title
;
 Palladium-catalyzed intramolecular oxidative annulation: synthesis of
 <i>o</i>-carboranoxazoles.
;
_journal_issue                   12
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4866
_journal_page_last               4870
_journal_paper_doi               10.1039/d5dt00382b
_journal_volume                  54
_journal_year                    2025
_chemical_formula_moiety         'C9 H21 B10 N O'
_chemical_formula_sum            'C9 H21 B10 N O'
_chemical_formula_weight         267.37
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2022-06-22
_audit_creation_method
;
Olex2 1.5
(compiled 2021.12.09 svn.r5202d8cf for OlexSys, GUI svn.r6439)
;
_audit_update_record
;
2025-01-16 deposited with the CCDC.	2025-03-03 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 110.678(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.6871(4)
_cell_length_b                   11.0137(4)
_cell_length_c                   12.6106(5)
_cell_measurement_reflns_used    9869
_cell_measurement_temperature    213.00
_cell_measurement_theta_max      54.895
_cell_measurement_theta_min      3.493
_cell_volume                     1518.65(10)
_computing_cell_refinement       'SAINT v8.37A (Bruker, 2015)'
_computing_data_reduction        'SAINT v8.37A (Bruker, 2015)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      213.00
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           GaK\a
_diffrn_radiation_wavelength     1.34139
_diffrn_reflns_av_R_equivalents  0.0358
_diffrn_reflns_av_unetI/netI     0.0238
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            19012
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        53.594
_diffrn_reflns_theta_max         54.905
_diffrn_reflns_theta_min         3.860
_diffrn_source_current           2.86
_diffrn_source_power             0.1995708
_diffrn_source_voltage           69.78
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.289
_exptl_absorpt_correction_T_max  0.7508
_exptl_absorpt_correction_T_min  0.5384
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1541 before and 0.0527 after correction.
The Ratio of minimum to maximum transmission is 0.7171.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.169
_exptl_crystal_description       block
_exptl_crystal_F_000             560
_exptl_crystal_size_max          0.07
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.283
_refine_diff_density_min         -0.286
_refine_diff_density_rms         0.036
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.060
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         2886
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.0473
_refine_ls_R_factor_gt           0.0443
_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^)+(0.0614P)^2^+0.5403P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1209
_refine_ls_wR_factor_ref         0.1237
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2664
_reflns_number_total             2886
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5dt00382b2.cif
_cod_data_source_block           2t
_cod_depositor_comments
'Adding full bibliography for 7718186--7718188.cif.'
_cod_database_code               7718188
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.986
_shelx_estimated_absorpt_t_min   0.980
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All B(H) groups, All C(H) groups, All C(H,H) groups
2.a Ternary CH refined with riding coordinates:
 C4(H4)
2.b Secondary CH2 refined with riding coordinates:
 C5(H5A,H5B), C6(H6A,H6B), C7(H7A,H7B), C8(H8A,H8B), C9(H9A,H9B)
2.c Boron cage BH refined with riding coordinates:
 C2(H2), B3(H3), B5(H5), B6(H6), B7(H7), B8(H8), B9(H9), B10(H10), B11(H11),
 B12(H12)
;
_shelx_res_checksum              81422
_shelx_hkl_checksum              4174
_olex2_submission_special_instructions 'No special instructions were received'