Strain-Release Heteroatom Functionalization: Development, Scope, and Stereospecificity.
Lopchuk, Justin M.; Fjelbye, Kasper; Kawamata, Yu; Malins, Lara R.; Pan, Chung-Mao; Gianatassio, Ryan; Wang, Jie; Prieto, Liher; Bradow, James; Brandt, Thomas A.; Collins, Michael R.; Elleraas, Jeff; Ewanicki, Jason; Farrell, William; Fadeyi, Olugbeminiyi O.; Gallego, Gary M.; Mousseau, James J.; Oliver, Robert; Sach, Neal W.; Smith, Jason K.; Spangler, Jillian E.; Zhu, Huichin; Zhu, Jinjiang; Baran, Phil S.; Journal of the American Chemical Society 139 (2017) 3209–3226; doi:10.1021/jacs.6b13229

data_4125437
_publ_section_title
;
 Strain-Release Heteroatom Functionalization: Development, Scope, and
 Stereospecificity.
;
_journal_issue                   8
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              3209
_journal_page_last               3226
_journal_paper_doi               10.1021/jacs.6b13229
_journal_volume                  139
_journal_year                    2017
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C18 H18 F2 O3 S2'
_chemical_formula_sum            'C18 H18 F2 O3 S2'
_chemical_formula_weight         384.44
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2016-08-09
_audit_creation_method
;
Olex2 1.2-beta
(compiled 2016.07.26 svn.r3321 for OlexSys, GUI svn.r5206)
;
_cell_angle_alpha                90
_cell_angle_beta                 98.442(6)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   7.8306(11)
_cell_length_b                   5.4318(7)
_cell_length_c                   20.139(3)
_cell_measurement_reflns_used    7313
_cell_measurement_temperature    100
_cell_measurement_theta_max      68.069
_cell_measurement_theta_min      2.212
_cell_volume                     847.3(2)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      100
_diffrn_detector                 'CCD area detector'
_diffrn_detector_area_resol_mean 5.6
_diffrn_detector_type            'Bruker SMART CCD 6000 area detector'
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker SMART CCD 6000 area detector'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0352
_diffrn_reflns_av_unetI/netI     0.0452
_diffrn_reflns_Laue_measured_fraction_full 0.984
_diffrn_reflns_Laue_measured_fraction_max 0.982
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            7769
_diffrn_reflns_point_group_measured_fraction_full 0.948
_diffrn_reflns_point_group_measured_fraction_max 0.945
_diffrn_reflns_theta_full        68.000
_diffrn_reflns_theta_max         68.505
_diffrn_reflns_theta_min         2.218
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_target            Mo
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.181
_exptl_absorpt_correction_T_max  0.3200
_exptl_absorpt_correction_T_min  0.1783
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2014/5 (Bruker,2014/5) was used for absorption correction.
wR2(int) was 0.1125 before and 0.0627 after correction.
The Ratio of minimum to maximum transmission is 0.5572.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.507
_exptl_crystal_description       needle
_exptl_crystal_F_000             400
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.267
_refine_diff_density_min         -0.243
_refine_diff_density_rms         0.050
_refine_ls_abs_structure_details
;
 Flack x determined using 1215 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.048(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     227
_refine_ls_number_reflns         2963
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          0.0272
_refine_ls_R_factor_gt           0.0269
_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^)+(0.0354P)^2^+0.1044P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0673
_refine_ls_wR_factor_ref         0.0675
_reflns_Friedel_coverage         0.729
_reflns_Friedel_fraction_full    0.902
_reflns_Friedel_fraction_max     0.899
_reflns_number_gt                2922
_reflns_number_total             2963
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja6b13229_si_011.cif
_cod_data_source_block           baran605
_cod_depositor_comments
'Adding full bibliography for 4125430--4125440.cif.'
_cod_original_cell_volume        847.33(19)
_cod_database_code               4125437
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C5(H5), C7(H7)
2.b Secondary CH2 refined with riding coordinates:
 C6(H6A,H6B), C13(H13A,H13B), C14(H14A,H14B)
2.c Aromatic/amide H refined with riding coordinates:
 C1(H1), C3(H3), C9(H9), C10(H10), C16(H16), C17(H17), C18(H18)
2.d Idealised Me refined as rotating group:
 C12(H12A,H12B,H12C)
;
_shelx_res_checksum              61905
_shelx_hkl_checksum              81879
_shelx_shelxl_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'