Access to 5-Fluoroalkylated Trisubstituted Oxazoles via Copper-Catalyzed Cyclization of α-Fluoroalkyl-α-diazoketones with Amides
Jiang, Di; Jia, Jingpei; Wang, Baiquan; Li, Bin; Chemical Communications  (2022) –; doi:10.1039/D2CC01057G

data_7129885
_publ_section_title
;
 Access to 5-Fluoroalkylated Trisubstituted Oxazoles via Copper-Catalyzed
 Cyclization of \a-Fluoroalkyl-\a-diazoketones with Amides
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/D2CC01057G
_journal_year                    2022
_chemical_formula_moiety         'C22 H14 F3 N O'
_chemical_formula_sum            'C22 H14 F3 N O'
_chemical_formula_weight         365.34
_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   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2021-10-22
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2021-12-20 deposited with the CCDC.	2022-03-18 downloaded from the CCDC.
;
_cell_angle_alpha                92.407(3)
_cell_angle_beta                 98.520(3)
_cell_angle_gamma                108.808(4)
_cell_formula_units_Z            4
_cell_length_a                   9.3924(4)
_cell_length_b                   9.7630(4)
_cell_length_c                   19.6787(7)
_cell_measurement_reflns_used    9693
_cell_measurement_temperature    113.15
_cell_measurement_theta_max      32.8750
_cell_measurement_theta_min      2.0930
_cell_volume                     1681.51(12)
_computing_cell_refinement       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      113.15
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.895
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w   -115.00  65.00   1.00    2.00    --  -25.00  45.00   0.00  180
  2  \w   -115.00  65.00   1.00    2.00    --  -25.00  45.00  90.00  180
  3  \w   -115.00  65.00   1.00    2.00    --  -25.00  45.00 180.00  180
;
_diffrn_measurement_device       'abstract diffractometer'
_diffrn_measurement_device_type  'Rigaku Saturn 70 CCD'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.0699405000
_diffrn_orient_matrix_UB_12      0.0244309000
_diffrn_orient_matrix_UB_13      0.0235814000
_diffrn_orient_matrix_UB_21      0.0407967000
_diffrn_orient_matrix_UB_22      0.0099107000
_diffrn_orient_matrix_UB_23      -0.0280076000
_diffrn_orient_matrix_UB_31      -0.0005056000
_diffrn_orient_matrix_UB_32      0.0724574000
_diffrn_orient_matrix_UB_33      -0.0003845000
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0458
_diffrn_reflns_av_unetI/netI     0.0626
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.895
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            25482
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.895
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         32.919
_diffrn_reflns_theta_min         2.214
_diffrn_source                   'rotating anode'
_diffrn_source_type              'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.111
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.64940
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'CrysAlisPro 1.171.39.46 (Rigaku Oxford Diffraction, 2018)'
_exptl_crystal_density_diffrn    1.443
_exptl_crystal_description       block
_exptl_crystal_F_000             752
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.382
_refine_diff_density_min         -0.343
_refine_diff_density_rms         0.058
_refine_ls_extinction_coef       0.0106(16)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     516
_refine_ls_number_reflns         11257
_refine_ls_number_restraints     93
_refine_ls_restrained_S_all      1.099
_refine_ls_R_factor_all          0.1059
_refine_ls_R_factor_gt           0.0613
_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^)+(0.0755P)^2^+0.0596P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1473
_refine_ls_wR_factor_ref         0.1810
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6585
_reflns_number_total             11257
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2cc01057g2.cif
_cod_data_source_block           r20211021c
_cod_database_code               7129885
_shelx_shelxl_version_number     2018/3
_chemical_oxdiff_formula         'C11 H10 N O'
_shelx_estimated_absorpt_t_max   0.983
_shelx_estimated_absorpt_t_min   0.976
_reflns_odcompleteness_completeness 99.87
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.32
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2. Restrained distances
 F1-C10 = F1A-C10 = F2-C10 = F2A-C10 = F3-C10 = F3A-C10
 1.38 with sigma of 0.01
 F1-F2 \\sim F1-F3 \\sim F2-F3 \\sim F1A-F2A \\sim F1A-F3A \\sim F2A-F3A
 with sigma of 0.01
3. Uiso/Uaniso restraints and constraints
F1 \\sim F2 \\sim F3 \\sim F1A \\sim F2A \\sim F3A: within 2A with sigma of
0.005 and sigma for terminal atoms of 0.01
Uanis(F1) \\sim Ueq, Uanis(F2) \\sim Ueq, Uanis(F3) \\sim Ueq, Uanis(F1A) \\sim
Ueq, Uanis(F2A) \\sim Ueq, Uanis(F3A) \\sim Ueq: with sigma of 0.005 and sigma
for terminal atoms of 0.01
4. Others
 Sof(F1A)=Sof(F2A)=Sof(F3A)=1-FVAR(1)
 Sof(F1)=Sof(F2)=Sof(F3)=FVAR(1)
5.a Aromatic/amide H refined with riding coordinates:
 C1A(H1A), C2A(H2A), C3A(H3A), C4A(H4A), C5A(H5A), C12A(H12A), C13A(H13A),
 C15A(H15A), C16A(H16A), C18A(H18A), C19A(H19A), C20A(H20A), C21A(H21A),
 C22A(H22A), C1(H1), C2(H2), C3(H3), C4(H4), C5(H5), C12(H12), C13(H13),
 C15(H15), C16(H16), C18(H18), C19(H19), C20(H20), C21(H21), C22(H22)
;
_shelx_res_checksum              621
_shelx_hkl_checksum              46137
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
- Detector area scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.460
_oxdiff_exptl_absorpt_empirical_full_min 0.793