Copper-catalyzed chemoselective C-H functionalization of quinoxalin-2(1<i>H</i>)-ones with hexafluoroisopropanol.
Su, Hai-Yan; Zhu, Xiao-Lei; Huang, Yangen; Xu, Xiu-Hua; Qing, Feng-Ling; Chemical communications (Cambridge, England) 56 (2020) 12805–12808; doi:10.1039/d0cc05623e

data_7127237
_publ_section_title
;
 Copper-catalyzed chemoselective C-H functionalization of
 quinoxalin-2(1<i>H</i>)-ones with hexafluoroisopropanol.
;
_journal_issue                   84
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              12805
_journal_page_last               12808
_journal_paper_doi               10.1039/d0cc05623e
_journal_volume                  56
_journal_year                    2020
_chemical_formula_sum            'C19 H13 F6 N3 O4'
_chemical_formula_weight         461.32
_space_group_crystal_system      monoclinic
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_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2013
_audit_update_record
;
2020-07-28 deposited with the CCDC.	2020-09-15 downloaded from the CCDC.
;
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_computing_cell_refinement       'Bruker SAINT'
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_diffrn_measured_fraction_theta_max 0.992
_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  0.0385
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_diffrn_reflns_limit_l_min       -18
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_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
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_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0491P)^2^+0.6021P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_refine_ls_wR_factor_ref         0.1158
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_reflns_number_gt                2928
_reflns_number_total             3625
_reflns_threshold_expression     'I > 2\s(I)'
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_cod_depositor_comments          'Adding full bibliography for 7127237.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7127237
_shelx_estimated_absorpt_t_min   0.971
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_shelx_res_checksum              97259