Mechanistic insights into boron-catalysed direct amidation reactions.
Arkhipenko, Sergey; Sabatini, Marco T.; Batsanov, Andrei S.; Karaluka, Valerija; Sheppard, Tom D.; Rzepa, Henry S.; Whiting, Andrew; Chemical science 9 (2018) 1058–1072; doi:10.1039/c7sc03595k

data_1548579
_publ_section_title
;
 Mechanistic insights into boron-catalysed direct amidation reactions.
;
_journal_issue                   4
_journal_name_full               'Chemical science'
_journal_page_first              1058
_journal_page_last               1072
_journal_paper_doi               10.1039/c7sc03595k
_journal_volume                  9
_journal_year                    2018
_chemical_formula_moiety         'C18 H6 B3 F9 O3'
_chemical_formula_sum            'C18 H6 B3 F9 O3'
_chemical_formula_weight         473.66
_chemical_name_systematic        3,4,5-trifluorophenylboroxine
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2017-07-23
_audit_creation_method
;
Olex2 1.2-beta
(compiled 2017.07.20 svn.r3457 for OlexSys, GUI svn.r5370)
;
_audit_update_record
;
2017-07-23 deposited with the CCDC.
2018-01-02 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 119.598(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.8086(4)
_cell_length_b                   12.6262(4)
_cell_length_c                   12.8625(5)
_cell_measurement_reflns_used    3537
_cell_measurement_temperature    220
_cell_measurement_theta_max      75.088
_cell_measurement_theta_min      3.95
_cell_volume                     1808.74(11)
_computing_cell_refinement       'SAINT v8.34A (Bruker, 2013)'
_computing_data_collection       'APEX2 v.2013.4_1 (Bruker, 2013)'
_computing_data_reduction        'SAINT v8.34A (Bruker, 2013)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL 2016/6 multi-CPU (Sheldrick, 2015)'
_computing_structure_solution    'ShelXS 2013/1 (Sheldrick, 2008)'
_diffrn_ambient_temperature      220
_diffrn_detector_area_resol_mean 10.4
_diffrn_detector_type            'Bruker PHOTON 100 CMOS'
_diffrn_measured_fraction_theta_full 0.979
_diffrn_measured_fraction_theta_max 0.959
_diffrn_measurement_device       '3-circle area detector diffractometer'
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       \w-scan
_diffrn_radiation_monochromator  'focusing mirrors'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0536
_diffrn_reflns_av_unetI/netI     0.0536
_diffrn_reflns_Laue_measured_fraction_full 0.979
_diffrn_reflns_Laue_measured_fraction_max 0.959
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            6438
_diffrn_reflns_point_group_measured_fraction_full 0.979
_diffrn_reflns_point_group_measured_fraction_max 0.959
_diffrn_reflns_theta_full        66.000
_diffrn_reflns_theta_max         75.320
_diffrn_reflns_theta_min         5.296
_diffrn_source                   'Incoatec I\mS microsource'
_exptl_absorpt_coefficient_mu    1.579
_exptl_absorpt_correction_T_max  0.7539
_exptl_absorpt_correction_T_min  0.5487
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details
;
SADABS-2009/1 (Bruker,2010) was used for absorption correction.
wR2(int) was 0.1252 before and 0.0927 after correction.
The Ratio of minimum to maximum transmission is 0.7278.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.739
_exptl_crystal_description       trapetsoid
_exptl_crystal_F_000             936
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent: CDCl3'
_exptl_crystal_size_max          0.409
_exptl_crystal_size_mid          0.209
_exptl_crystal_size_min          0.126
_refine_diff_density_max         0.397
_refine_diff_density_min         -0.272
_refine_diff_density_rms         0.081
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     152
_refine_ls_number_reflns         1790
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0715
_refine_ls_R_factor_gt           0.0628
_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^)+(0.1380P)^2^+0.0940P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1811
_refine_ls_wR_factor_ref         0.1941
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1418
_reflns_number_total             1790
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7sc03595k2.cif
_cod_data_source_block           7a_14srv233
_cod_depositor_comments
;
The following automatic conversions were performed:

'_diffrn_radiation_probe' value 'X-ray' changed to 'x-ray' according
to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 1548566--1548579.cif.
;
_cod_original_cell_volume        1808.74(12)
_cod_database_code               1548579
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.826
_shelx_estimated_absorpt_t_min   0.564
_computing.bruker_data_scaling   'SADABS V2012/1 (Bruker AXS Inc.)'
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C3(H3), C6(H6), C10(H10)
;
_shelx_res_checksum              15905
_olex2_diffrn_ambient_temperature_device 'Oxford Cryosystems'
_olex2_submission_special_instructions 'No special instructions were received'