Two-step Conversion of Carboxylic Esters into Distally Fluorinated Ketones via Ring Cleavage of Cyclopropanol Intermediates: Application of Sulfinate Salts as Fluoroalkylating Reagents
Konik, Yulia A.; Kudrjashova, Marina; Konrad, Nele; Kaabel, Sandra; Järving, Ivar; Lopp, Margus; Kananovich, Dzmitry; Org. Biomol. Chem.  (2017) –; doi:10.1039/C7OB00680B

data_7155618
_publ_section_title
;
 Two-step Conversion of Carboxylic Esters into Distally Fluorinated
 Ketones via Ring Cleavage of Cyclopropanol Intermediates: Application of
 Sulfinate Salts as Fluoroalkylating Reagents
;
_journal_name_full               'Org. Biomol. Chem.'
_journal_paper_doi               10.1039/C7OB00680B
_journal_year                    2017
_chemical_formula_moiety         'C18 H17 Br F2 O'
_chemical_formula_sum            'C18 H17 Br F2 O'
_chemical_formula_weight         367.22
_space_group_crystal_system      orthorhombic
_space_group_IT_number           62
_space_group_name_Hall           '-P 2ac 2n'
_space_group_name_H-M_alt        'P n m a'
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2017-03-06
_audit_creation_method
;
Olex2 1.2
(compiled 2017.03.02 svn.r3394 for OlexSys, GUI svn.r5324)
;
_audit_update_record
;
2017-03-06 deposited with the CCDC.
2017-05-08 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   34.5876(4)
_cell_length_b                   9.19962(10)
_cell_length_c                   4.92247(5)
_cell_measurement_reflns_used    12038
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      67.0800
_cell_measurement_theta_min      2.5490
_cell_volume                     1566.29(3)
_computing_cell_refinement       'CrysAlisPro 1.171.38.43 (Rigaku OD, 2015)'
_computing_data_collection
;
Rigaku Collection Strategy
(Daniels, L. M. (2011). Acta Cryst. A67, C143)
;
_computing_data_reduction        'CrysAlisPro 1.171.38.43 (Rigaku OD, 2015)'
_computing_molecular_graphics
;
Mercury CSD 3.9 (Macrae, C. F., et al. (2006). J. Appl. Cryst. 39, 453-457)
POV-Ray 3.7 (Persistence of Vision Pty. Ltd. (2004)) 
;
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      123.0
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.980
_diffrn_measured_fraction_theta_max 0.980
_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   -179.00   0.00   1.00   10.00    --  -90.00  60.00-108.00  179
  2  \w   -110.00  69.00   1.00   10.00    --  -21.00  30.00 -36.00  179
  3  \w   -179.00   0.00   1.00   10.00    --  -90.00  60.00-180.00  179
  4  \w   -179.00   0.00   1.00   10.00    --  -90.00  60.00 -36.00  179
  5  \w   -179.00   0.00   1.00   10.00    --  -90.00  60.00 108.00  179
  6  \w   -179.00   0.00   1.00   10.00    --  -90.00  60.00  36.00  179
  7  \w   -179.00   0.00   1.00   10.00    --  -90.00  30.00 108.00  179
  8  \w    -99.00  80.00   1.00   10.00    --  -10.00  30.00 108.00  179
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Rigaku Saturn944+ (2x2 bin mode)'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.0160927000
_diffrn_orient_matrix_UB_12      -0.0113232000
_diffrn_orient_matrix_UB_13      0.2910486000
_diffrn_orient_matrix_UB_21      -0.0244783000
_diffrn_orient_matrix_UB_22      0.1323031000
_diffrn_orient_matrix_UB_23      0.0847545000
_diffrn_orient_matrix_UB_31      -0.0335598000
_diffrn_orient_matrix_UB_32      -0.1019964000
_diffrn_orient_matrix_UB_33      0.0777939000
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0195
_diffrn_reflns_av_unetI/netI     0.0074
_diffrn_reflns_Laue_measured_fraction_full 0.980
_diffrn_reflns_Laue_measured_fraction_max 0.980
_diffrn_reflns_limit_h_max       41
_diffrn_reflns_limit_h_min       -41
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -5
_diffrn_reflns_number            13397
_diffrn_reflns_point_group_measured_fraction_full 0.980
_diffrn_reflns_point_group_measured_fraction_max 0.980
_diffrn_reflns_theta_full        67.215
_diffrn_reflns_theta_max         67.215
_diffrn_reflns_theta_min         2.555
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_source_type              'Rigaku MicroMax-003'
_exptl_absorpt_coefficient_mu    3.762
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.21467
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.43 (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.557
_exptl_crystal_description       block
_exptl_crystal_F_000             744
_exptl_crystal_size_max          0.29
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.320
_refine_diff_density_min         -0.299
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.127
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     148
_refine_ls_number_reflns         1462
_refine_ls_number_restraints     118
_refine_ls_restrained_S_all      1.110
_refine_ls_R_factor_all          0.0236
_refine_ls_R_factor_gt           0.0235
_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^)+(0.0313P)^2^+0.9302P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0626
_refine_ls_wR_factor_ref         0.0627
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1456
_reflns_number_total             1462
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7ob00680b2.cif
_cod_data_source_block           5
_cod_database_code               7155618
_shelx_shelxl_version_number     2016/6
_chemical_oxdiff_formula         'C18 H17 O1 F2 Br1'
_reflns_odcompleteness_completeness 98.13
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     67.10
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
2. Restrained distances
 C14-C13 \\sim C14-C15
 with sigma of 0.02
 C16-C15 \\sim C12-C13
 with sigma of 0.02
 C11-C12 \\sim C11-C10 \\sim C11-C16
 with sigma of 0.02
 C16-C13 \\sim C15-C12
 with sigma of 0.02
3. Restrained planarity
 O1, C9, C8, C10
 with sigma of 0.1
 C11, C14, C13, C12, C16, C15
 with sigma of 0.1
4. Rigid body (RIGU) restrains
 C5, C1, C6, C4, C7, C9, C2, C11, C3, C14, C13, C12, C8, C10, C16, C15, O1
 with sigma for 1-2 distances of 0.004 and sigma for 1-3 distances of 0.004
5. Others
 Fixed Sof: O1(0.5) H5A(0.5) H5B(0.5) H7A(0.5) H7B(0.5) C11(0.5) C14(0.5)
 H14(0.5) C13(0.5) H13(0.5) C12(0.5) H12(0.5) H8A(0.5) H8B(0.5) C10(0.5)
 H10A(0.5) H10B(0.5) C16(0.5) H16(0.5) C15(0.5) H15(0.5)
6.a Secondary CH2 refined with riding coordinates:
 C5(H5A,H5B), C7(H7A,H7B), C8(H8A,H8B), C10(H10A,H10B)
6.b Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C14(H14), C13(H13), C12(H12), C16(H16), C15(H15)
;
_shelx_res_checksum              50077
_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 4.623
_oxdiff_exptl_absorpt_empirical_full_min 0.511